VION PHARMACEUTICALS INC
10QSB, 1997-11-13
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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                     U.S. SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                   FORM 10-QSB

(Mark One)
[x] QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF
    1934 
For the quarterly  period ended  September  30, 1997 
                                 -------------------
[ ] TRANSITION  REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT 
For the transition period from ______________ to ________________

Commission file number          0-26534
                       ---------------------------------------------------------



                           VION PHARMACEUTICALS, INC.
- --------------------------------------------------------------------------------
        (Exact Name of Small Business Issuer as Specified in Its Charter)



          Delaware                                          13-3671221
          --------                                          ----------
 (State or Other Jurisdiction of                        (I.R.S. Employer
  Incorporation or Organization)                        Identification No.)

                       4 Science Park, New Haven, CT 06511
- --------------------------------------------------------------------------------
                    (Address of Principal Executive Offices)

                                 (203) 498-4210
- --------------------------------------------------------------------------------
                (Issuer's Telephone Number, Including Area Code)

- --------------------------------------------------------------------------------
   (Former Name, Former Address and Former Fiscal Year, if Changed Since Last
    Report)

         Check whether the issuer: (1) filed all reports required to be filed by
Section 13 or 15(d) of the  Exchange  Act during the past 12 months (or for such
shorter period that the  registrant was required to file such reports),  and (2)
has been subject to such filing requirements for the past 90 days.

Yes     X       No 
    ---------     --------- 

         The number of shares  outstanding  of the issuer's sole class of common
equity,  as of October 31, 1997 is: 9,302,374  shares of common stock,  $.01 par
value.


         Transitional Small Business Disclosure Format (check one):

Yes             No    X
    ---------     --------- 






Part 1 - Financial Information
Item 1. Financial Statements

CONSOLIDATED BALANCE SHEET

Vion Pharmaceuticals, Inc.
(A Development Stage Company)


<TABLE>
<CAPTION>
                                                                                               ----------------   --------------
                                                                                                  September 30,
                                                                                                      1997         December 31,
                                                                                                   (Unaudited)         1996
- --------------------------------------------------------------------------------------------------------------------------------
ASSETS
<S>                                                                                          <C>                 <C>
Current Assets:
     Cash and cash equivalents                                                                     $ 4,409,081      $ 3,788,369
     Short-term investments                                                                          1,065,234        4,628,446
     Other current assets                                                                               67,718          106,635
                                                                                               ----------------   --------------
                                                                                               ----------------   --------------
        Total current assets                                                                         5,542,033        8,523,450
     Property and equipment, net                                                                     1,323,683          712,806
     Security deposits                                                                                  34,894           41,301
     Research contract prepayment                                                                      312,710          603,208
                                                                                               ----------------   --------------
        Total assets                                                                               $ 7,213,320      $ 9,880,765
                                                                                               ----------------   --------------

LIABILITIES AND SHAREHOLDERS' EQUITY
Current Liabilities:
     Obligation under capital leases - current                                                         164,417           91,476
     Accounts payable and accrued expenses                                                             453,022          494,127
                                                                                               ----------------   --------------
        Total current liabilities                                                                      617,439          585,603
     Obligation under capital leases - long term                                                       264,320          223,190
                                                                                               ----------------   --------------
        Total liabilities                                                                              881,759          808,793
                                                                                               ----------------   --------------

Shareholders' equity
     Preferred stock,  $0.01 par value - 5,000,000 shares authorized  consisting
     of: Class A convertible preferred stock, $0.01 par value, authorized:
        3,500,000 shares; issued and outstanding: 946,389 shares                                         9,463           11,070
     Class B convertible preferred stock, $0.01 par value, authorized:
        100,000 shares; issued and outstanding: 4,850 shares                                                49                -
     Class C convertible preferred stock, $0.01 par value, authorized:
        25,000 shares; issued and outstanding: 0 shares                                                      -                -
     Common stock, $0.01 par value, authorized: 35,000,000 shares;
        issued and outstanding: 1997- 8,730,853 shares 1996 - 8,017,961shares                           87,308           80,178
     Additional paid-in-capital                                                                     31,861,232       26,721,888
     Deferred compensation                                                                             (80,786)        (106,760)
     Accumulated deficit                                                                           (25,545,705)     (17,634,404)
                                                                                               ----------------   --------------
                                                                                                     6,331,561        9,071,972
                                                                                               ----------------   --------------
                                                                                               ================   ==============
Total liabilities and shareholders' equity                                                         $ 7,213,320      $ 9,880,765
                                                                                               ================   ==============
</TABLE>


   The accompanying notes are an integral part of these financial statements.

                                     Page 2








CONSOLIDATED STATEMENT OF OPERATIONS

Vion Pharmaceuticals, Inc.
(A Development Stage Company)



<TABLE>
<CAPTION>
                                                                                                                   For The Period
                                                                                                                   From May 1, 1994
                                                        Three Months Ended              Nine Months Ended        (Inception) through
                                                           September 30,                   September 30,             September 30,
                                                  --------------------------------------------------------------------------------
                                                     1997                 1996       1997              1996             1997
                                                           (Unaudited)                     (Unaudited)               (Unaudited)
- ----------------------------------------------------------------------------------------------------------------------------------
Revenues:
<S>                                                <C>                <C>           <C>            <C>              <C>          
    Contract research grants                       $          -       $          -  $     48,221   $         -      $     100,000
                                                  --------------------------------------------------------------------------------
Operating expenses:
    Research and development                          1,591,310            974,569     5,985,947     4,020,516         15,094,236
    General and administrative                          553,844            441,834     1,536,436     1,327,973          5,734,832
    Nonrecurring collaboration restructuring fee        600,000                  -       600,000             -            600,000

    Purchased research and development                        -                  -             -             -          4,481,405
    Amortization of finance charges                           -                  -             -             -            345,439

Interest Income                                         (60,153)          (165,272)     (238,182)     (307,467)          (760,219)
Interest Expense                                          9,696              2,538        31,498         7,423             86,945
                                                  --------------------------------------------------------------------------------
    Net Loss                                       $ (2,694,697)      $ (1,253,669) $ (7,867,478)  $(5,048,445)     $ (25,482,638)
                                                  --------------------------------------------------------------------------------

Net loss per share                                 $      (0.30)      $      (0.16) $      (0.90)  $     (0.64)
                                                  --------------------------------------------------------------------------------

Weighted average common stock and
    common stock equivalents outstanding              8,905,594          7,857,354     8,721,398     7,841,460
                                                  --------------------------------------------------------------------------------

</TABLE>


   The accompanying notes are an integral part of these financial statements.


                                     Page 3







CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY

Vion Pharmaceuticals, Inc.
( A Development Stage Company)

<TABLE>
<CAPTION>

                                                                    Class A                Class B
                                                                  Convertible             Convertible
                                                                Preferred Stock         Preferred Stock          Common Stock
                                                             -------------------------------------------------------------------
                                                               Shares     Amount      Shares     Amount      Shares      Amount
                                                             -------------------------------------------------------------------

<S>                                                           <C>       <C>        <C>       <C>        <C>          <C>
Common stock issued for cash - July 1994                              0       $0           0         $0    2,693,244    $26,932
Common stock issued for services -
       August 1994                                                                                           159,304      1,593
Net loss
                                                             -------------------------------------------------------------------

Balance - December 31, 1994                                           0        0           0          0    2,852,548     28,525

Stock options issued for compensation -
       February 1995

Reverse acquisition of MelaRx
      Pharmaceuticals, Inc. - April 1995                                                                   2,000,000     20,000

Shares repurchased pursuant to
      employment agreements - April 1995                                                                    (274,859)    (2,749)

Private placement of common stock -
       April 1995                                                                                             76,349        763

Warrants issued with bridge notes -
       April 1995

Initial public offering of units of one common share,
  one Class A warrant and one Class B warrant at
  $4.00 per unit - August 1995 and September 1995                                                          2,875,000     28,750

Issuance of common stock                                                                                       1,250         13

Receipts from sale of unit purchase option

Net loss
                                                             -------------------------------------------------------------------

Balance at December 31, 1995                                          0        0           0          0    7,530,288     75,302

Issuance of Class A convertible preferred stock               1,250,000   12,500

Conversion of Class A convertible preferred stock              (164,970)  (1,650)                            458,255      4,582

Issuance of common stock                                                                                      29,418        294

Class A convertible preferred stock dividend                     21,998      220

Compensation associated with stock option grants

Amortization of deferred compensation

Net loss
                                                             -------------------------------------------------------------------

Balance at December 31, 1996                                  1,107,028  $11,070           0         $0    8,017,961    $80,178
                                                             -------------------------------------------------------------------

Conversion of Class A convertible preferred stock              (184,552)  (1,846)                            512,654      5,127

Compensation associated with stock options grants

Exercise of warrants                                                                                             238          3

Issuance of common stock                                                                                     150,000      1,500

Exercise of stock options                                                                                     50,000        500

Class A convertible preferred stock dividend                     23,913      239

Issuance of Class B convertible preferred stock                       0        0       4,850         49

Accretion of dividend payable on Class B convertible
      preferred stock

Amortization of deferred compensation

Net loss
                                                             -------------------------------------------------------------------

Balance at September 30, 1997     (Unaudited)                   946,389   $9,463       4,850        $49    8,730,853    $87,308
                                                             -------------------------------------------------------------------

</TABLE>

<TABLE>
<CAPTION>


                                                                      Additional                                       Total
                                                                       Paid-in         Deferred       Accumulated   Stockholders'
                                                                       Capital       Compensation       Deficit        Equity
                                                                 ----------------------------------------------------------------

<S>                                                              <C>               <C>             <C>             <C>   
Common stock issued for cash - July 1994                                   $0                $0        ($19,877)       $7,055
Common stock issued for services -
       August 1994                                                                                       (1,176)          417
Net loss                                                                                               (475,946)     (475,946)
                                                                 ----------------------------------------------------------------

Balance - December 31, 1994                                                 0                 0        (496,999)     (468,474)

Stock options issued for compensation -
       February 1995                                                  540,000                                         540,000

Reverse acquisition of MelaRx
      Pharmaceuticals, Inc. - April 1995                            4,300,000                                       4,320,000

Shares repurchased pursuant to
      employment agreements - April 1995                                                                  2,029          (720)

Private placement of common stock -
       April 1995                                                     205,237                                         206,000

Warrants issued with bridge notes -
       April 1995                                                     200,000                                         200,000

Initial public offering of units of one common share,
  one Class A warrant and one Class B warrant at
  $4.00 per unit - August 1995 and September 1995                   9,667,460                                       9,696,210

Issuance of common stock                                                  488                                             501

Receipts from sale of unit purchase option                                250                                             250

Net loss                                                                                             (9,530,535)   (9,530,535)
                                                                 ----------------------------------------------------------------

Balance at December 31, 1995                                       14,913,435                 0     (10,025,505)    4,963,232

Issuance of Class A convertible preferred stock                    11,518,552                                      11,531,052

Conversion of Class A convertible preferred stock                      (2,932)                                              0

Issuance of common stock                                              102,426                                         102,720

Class A convertible preferred stock dividend                                                               (220)            0

Compensation associated with stock option grants                      190,407          (190,407)                            0

Amortization of deferred compensation                                                    83,647                        83,647

Net loss                                                                                             (7,608,679)   (7,608,679)
                                                                 ----------------------------------------------------------------

Balance at December 31, 1996                                      $26,721,888         ($106,760)   ($17,634,404)   $9,071,972
                                                                 ----------------------------------------------------------------

Conversion of Class A convertible preferred stock                      (3,281)                                              0

Compensation associated with stock options grants                      42,830                                          42,830

Exercise of warrants                                                       (6)                                             (3)

Issuance of common stock                                              598,500                                         600,000

Exercise of stock options                                              19,500                                          20,000

Class A convertible preferred stock dividend                                                               (239)            0

Issuance of Class B convertible preferred stock                     4,481,801                                       4,481,850

Accretion of dividend payable on Class B convertible
      preferred stock                                                                                   (43,584)      (43,584)

Amortization of deferred compensation                                                    25,974                        25,974

Net loss                                                                                             (7,867,478)   (7,867,478)
                                                                 ----------------------------------------------------------------

Balance at September 30, 1997     (Unaudited)                     $31,861,232          ($80,786)   ($25,545,705)   $6,331,561
                                                                 ----------------------------------------------------------------

</TABLE>

   The accompanying notes are an integral part of these financial statements.


                                     Page 4







CONSOLIDATED STATEMENT OF CASH FLOWS

Vion Pharmaceuticals, Inc.
(A Development Stage Company)

<TABLE>
<CAPTION>
                                                                                                                 For the period
                                                                                                                 from May 1, 1994
                                                                                For the Nine Months              (inception) through
                                                                                Ended September 30,              September 30,
                                                                          ----------------------------------------------------------
                                                                               1997                   1996               1997
                                                                                     (Unaudited)                      (Unaudited)
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                                     <C>                   <C>                  <C>
Cash flows from operating activities:
     Net loss                                                              $ (7,867,478)         $ (5,048,445)        $ (25,482,638)
     Adjustments to reconcile net loss to
     cash flows used in operating activities
          Purchased research and development                                          -                     -             4,481,405
          Amortization of financing costs                                             -                     -               345,439
          Depreciation and amortization                                         223,149                75,758               374,609
         (Increase) in other current assets                                      38,917               (65,602)              (66,732)
         (Increase) in other assets                                             296,905              (167,456)             (345,889)
          Increase in accounts payable and
          accrued expenses                                                      (41,105)              133,165               418,490
          Accretion on Class B preferred stock                                  (43,584)                    -               (43,584)
          Stock issued for services                                             600,000                     -               600,417
          Stock options issued for compensation                                  68,804                     -               692,451
                                                                          ----------------------------------------------------------
                 Net cash used in operating activities                       (6,724,392)           (5,072,580)          (19,026,032)
                                                                          ----------------------------------------------------------

Cash flows used for investing activities:
          Purchase of marketable securities                                  (2,194,725)           (6,070,445)          (16,282,171)
          Maturities of marketable securities                                 5,757,937                     -            15,216,937
          Cash portion of MelaRx acquisition                                          -                     -                 4,061
          Acquisition of fixed assets                                          (600,821)             (349,729)           (1,114,143)
                                                                          ----------------------------------------------------------
                 Net cash provided by (used in) investing activities          2,962,391            (6,420,174)           (2,175,316)
                                                                          ----------------------------------------------------------

Cash flows provided by financing activities:
          Initial public offering                                                     -                     -             9,696,210
          Net proceeds from issuance of common stock                             20,000                 2,721               336,276
          Net proceeds from issuance of preferred stock                       4,481,850            11,556,285            16,012,902
          Repurchase of common stock                                                  -                     -                  (720)
          Net proceeds from bridge financing                                          -                     -             1,704,269
          Repayments of bridge financing                                              -                     -            (2,000,000)
          Advances from stockholders                                                  -                     -               250,000
          Repayments to stockholders                                                  -                     -              (250,000)
          Exercise of warrants                                                       (3)                    -                    (3)
          Receipts from sale of unit purchase option                                  -                     -                   250
          Repayment of equipment capital leases                                (119,134)              (11,297)             (138,755)
                                                                          ----------------------------------------------------------
                 Net cash provided by financing activities                    4,382,713            11,547,709            25,610,429
                                                                          ----------------------------------------------------------

Net increase in cash                                                            620,712                54,955             4,409,081
Cash and cash equivalents at beginning of period                              3,788,369             2,350,933                     -
                                                                          ----------------------------------------------------------
Cash and cash equivalents at end of period                                  $ 4,409,081           $ 2,405,888           $ 4,409,081
                                                                          ==========================================================

</TABLE>

                                                                                
   The accompanying notes are an integral part of these financial statements.


                                     Page 5








                            VION PHARMACEUTICALS, INC
                          (A Development Stage Company)

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


(Note A) - The Company:

         Vion Pharmaceuticals,  Inc., formerly OncoRx, Inc., (the "Company") was
incorporated in May 1993 and began  operations on May 1, 1994. The Company is in
the development stage and is principally devoted to the research and development
of  therapeutic  products  for  the  treatment  of  cancer  and  cancer  related
disorders.

         On April 20, 1995,  the Company  merged into OncoRx  Research  Corp., a
wholly-owned  subsidiary  of MelaRx  Pharmaceuticals  Inc.  (MelaRx),  which was
renamed OncoRx,  Inc. after the merger (the "Merger").  The  stockholders of the
Company were issued  2,654,038  common and 23,859  preferred shares of MelaRx in
exchange for 2,000,000 shares of common stock of the Company valued at $2.16 per
share (fair  value).  In August 1995,  the Company  completed an initial  public
offering  ("IPO")  resulting  in net  proceeds to the  Company of  approximately
$9,696,000.  In April 1996 the Company changed its name to Vion Pharmaceuticals,
Inc.

         As the shareholders of the Company obtained a majority  interest in the
merged company, for accounting purposes, the Company is treated as the acquirer.
Therefore,  the Merger is  recorded  as a purchase  in the  Company's  financial
statements which include the results of operations of the Company from inception
and MelaRx from the date of acquisition.  The excess of cost over the fair value
of MelaRx's net tangible assets,  $4,481,405,  was treated as purchased research
and development and expensed immediately.

(Note B) - Basis of Presentation:

         The accompanying  unaudited financial  statements have been prepared in
accordance with generally accepted  accounting  principles for interim financial
information and with the instructions to Form 10-QSB.  Accordingly,  they do not
include all of the  information  and  footnotes  required by generally  accepted
accounting  principles  for  complete  financial  statements.  In the opinion of
management, all adjustments (consisting of normal recurring accruals) considered
necessary for a fair presentation have been included.  Operating results for the
three month and nine month periods ended  September 30, 1997 are not necessarily
indicative of the results that may be expected for the year ending  December 31,
1997. For further  information,  refer to the financial statements and footnotes
thereto  included  in the  Company's  Annual  Report for the  fiscal  year ended
December 31, 1996 on Form 10-KSB (File No. 0-26534).



                                     Page 6








(Note C) - Stock Option Plan:

                  Through December 31, 1996, options to purchase an aggregate of
896,750  shares had been granted under the  Company's  Amended and Restated 1993
Stock  Option Plan (the  "Plan").  On January 29,  1997,  the Board of Directors
adopted,  subject to stockholder  approval,  an amendment to the Plan increasing
the  number of  shares  which may be  issued  under the Plan from  1,000,000  to
1,500,000.  The  amendment to the Plan was approved by the  stockholders  at the
Company's annual meeting on April 16, 1997.

 (Note D) - Private Placement of Class A Convertible Preferred Stock:

         On May 22, 1996, the Company completed a private placement of 1,250,000
shares of Class A convertible preferred stock, at $10.00 per share, resulting in
net  proceeds  to the  Company of  $11,531,052.  Each share of Class A preferred
stock is initially  convertible  into 2.777777  shares of the  Company's  common
stock. The shares of Class A preferred stock pay semi-annual dividends of 5% per
annum,  payable in additional  shares of Class A preferred  stock, and a 15% one
time  dividend if the Company  redeems the issue within 3 years.  The issue also
contains  a  provision  for a  special  dividend  after  2 years  under  certain
circumstances  if the  Company's  common stock price falls below the  conversion
price of the Class A  preferred  stock.  The  issuance  of the Class A preferred
stock at closing also triggered certain  adjustment  provisions of the Company's
outstanding warrants, resulting in the issuance of additional warrants.

(Note E) - Antidilution Adjustment:

         As a result of the sale on May 22, 1996 of 1,250,000  shares of Class A
convertible  preferred stock, and pursuant the Warrant  Agreement  governing the
rights of the Company's Class A Warrants and the Class B Warrants, an adjustment
was made to the exercise  price of the Class A Warrants and the Class B Warrants
and there was a corresponding  distribution  of additional  Class A Warrants and
Class B  Warrants.  Specifically,  on July 12,  1996 (the  "Payment  Date") each
holder  of a Class A  Warrant  at the  close of  business  on July 3,  1996 (the
"Record  Date") was issued an  additional  0.1 Class A Warrants and the exercise
price of the Class A Warrants was reduced from $5.20 to $4.73.  In addition,  on
the  Payment  Date each  holder of a Class B Warrant on the close of business on
the Record Date was issued an  additional  0.1 Class B Warrants and the exercise
price of the Class B Warrants was reduced from $7.00 to $6.37.

(Note F) - Private Placement of Class B Convertible Preferred Stock:

         On August 20, 1997, the Company  completed a private placement of 4,850
shares of Class B convertible preferred stock, at $1,000 per share, resulting in
net proceeds to the Company of $4,481,450. Shares of Class B preferred stock are
convertible  into shares of common stock including an accretion of 8% per annum.
Shares  of the  Class B  preferred  stock may also be  eligible,  under  certain
circumstances, to receive dividends paid in Class C preferred stock. The Class C
preferred  stock is  convertible  into  shares  of common  stock at the  average
closing bid price of the Company's common stock for thirty consecutive  business
days ending on the closing date and is not entitled to dividends.



                                     Page 7






(Note G) - Issuance of Common Stock to Yale University:

Effective  July  24,1997,  the Company and Yale  University  (Yale)  amended two
license  agreements between the parties pursuant to which, Yale agreed to reduce
certain amounts payable by the Company under such agreements.  As a result,  the
Company  issued  150,000 shares of common stock to Yale valued at $600,000 which
was charged to expense in the quarter.

(Note H) - Termination of Research Agreement:

In October 1997, the Company terminated a research agreement with The Regents of
the University of California on behalf of the Berkeley Campus  ("Berkeley") with
regard  to  certain  microfiltration   technology  and  decided  not  to  pursue
negotiations  to obtain  licenses  or options  to obtain  licenses  for  certain
inventions resulting from this research.  There are no continuing liabilities to
the Company stemming from prior funding of this research.

(Note I) - Covance Agreement:

During the quarter  ended June 30,  1997,  the Company  entered  into a Clinical
Development Agreement (the "Agreement") with Covance Clinical Research Unit Ltd.
and  Covance  Inc.  ("Covance").  Pursuant  to  the  Agreement  the  Company  is
contracting  to Covance the selection and  management of clinical  sites and the
preparation of clinical trial reports arising from clinical trials  performed by
Covance regarding the Company's product candidate Promycin(R) (porfiromycin) for
the  inclusion  in a  regulatory  submission.  During the twelve  months  ending
December 31, 1997, the Company  estimates it will make payments of $2,800,000 to
Covance  under the  Agreement.  Through  September  30,  1997,  the  Company has
incurred $1,523,000 under this agreement which has been expensed as incurred.



                                     Page 8






 ITEM 2.  PLAN OF OPERATION.

General


         The  Company is a  development  stage  biopharmaceutical  company.  Its
activities  to  date  have  consisted  primarily  of  research  and  development
sponsored  by  it  pursuant  to  two  separate  license   agreements  with  Yale
University, negotiating and obtaining other collaborative agreements, recruiting
management and other  personnel,  securing its facilities and raising equity and
debt  financing.  The Company has not  generated  any material  revenues and has
incurred substantial operating losses from its activities.

         The Company intends to use a substantial portion of the net proceeds of
its  August,  1997  private  financing  to fund  its plan of  operations,  which
includes the following elements for the next 12 months:

         o     Continue   to   develop   internal   research   and   development
               capabilities and conduct research and development with respect to
               the Company's  core  technologies  and other  product  candidates
               which may be  identified by the Company.  The Company  expects to
               incur  substantial  expenditures  for  research  and  development
               expenses.  In addition,  the Company expects to purchase or lease
               laboratory and office equipment worth approximately  $100,000 and
               enter into a sale and  leaseback  of  approximately  $241,000  of
               laboratory equipment.  During the next twelve months, the Company
               does not plan to hire any additional employees.

         o     Conduct  Phase III  clinical  studies  in the U.S.  and Europe of
               Promycin for treatment of cancer of the head and neck.

         o     Continue to support  research and development  being performed at
               Yale  University and by other  collaborators  and seek additional
               collaborative agreements.

         o     Seek to acquire, generally through in-licensing, oncology-related
               products  that can be  marketed  without  significant  additional
               development activities.


         The Company currently  estimates that the remaining net proceeds of its
private placement in August,  1997 and its existing cash and equivalents will be
sufficient to fund its planned  operations for  approximately the next 5 months.
In the event of delays or  unexpected  problems  in  product  development,  cost
overruns, or other unanticipated  expenses commonly associated with a company in
an early stage of  development,  the Company will require  additional  funds. In
addition,  the Company will need substantial  additional financing,  beyond this
period to fund  further  research  and  development  and the  Company's  working
capital  requirements.  As of  September  30,  1997 the amount  required to fund
operations for the next twelve months is estimated at approximately $13,500,000.
However,  the Company's cash  requirements  may vary  materially  from those now
planned  because of  results of  research  and  development,  results of product
testing,  relationships with strategic partners,  changes in focus




                                     Page 9






and direction of the Company's  research and development  programs,  competitive
and  technological  advances,  the  regulatory  process in the United States and
abroad and other factors.

         The Company  received an opinion  from its auditors for the fiscal year
ended  December  31,  1996,  expressing  substantial  doubt as to its ability to
continue as a going concern.  The Company  intends to address the immediate need
for  additional  capital by raising  funds  through a private  placement  of its
securities  and/or  sale of  stock  to and  upfront  payments  from a  strategic
partner,  although the Company expects to require  additional  financing to fund
its  longer-term  activities  and may  require  additional  capital  to fund its
operations, acquisitions and new development projects.

Liquidity and Capital Resources

         At September 30, 1997,  the Company had working  capital of $4,924,594.
The Company's  principal  sources of funds through  September 30, 1997 have been
$4,481,850 net proceeds from private  financing through issuance of 4,850 shares
of Class B convertible  preferred  stock,  $11,531,052 net proceeds from private
financing through issuance of 1,250,000 shares of Class A convertible  preferred
stock;  $9,696,210  from its initial  public  offering,  and  $5,478,280  in net
proceeds  from  private  placements  of  common  stock  in 1992  and 1993 by its
predecessor, MelaRx Pharmaceuticals Inc.

         The Company used the proceeds of its initial public offering to repay a
previous  bridge  financing and used the remaining funds and the proceeds of its
sales of  convertible  preferred  stock to implement  its business  plan,  which
included hiring of additional  personnel;  capital expenditures for the purchase
of  equipment,  principally  for  laboratory  facilities;  costs of research and
development;  payment of license fees due under sponsored  research  agreements;
and grants to Yale University to fund certain  research,  including  research in
Dr. Yung-Chi  Cheng's  laboratory.  During the twelve months ending December 31,
1997,  the  Company  will  be  required  to make  payments  of an  aggregate  of
$1,205,000 to Yale University and the University of California,  Berkeley, under
sponsored research and license agreements.

         The Company  requires  substantial  new revenues  and other  sources of
capital  in  order  to meet  such  budgeted  expenditures  and to  continue  its
operations throughout the year. The Company is seeking to enter into one or more
significant  strategic  partnerships  with  pharmaceutical   companies  for  the
development  of  its  core  technologies,  through  which  it  would  anticipate
receiving  some of the  substantial  revenues  and  financing.  The  Company has
entered into discussions with several major pharmaceutical  companies concerning
such a strategic  alliance,  but there can be no assurance that the Company will
be successful in achieving  such an alliance,  nor can the Company  predict what
funds might be available  to it if it can achieve such an alliance.  The Company
is also seeking to raise funds through  additional means,  including (1) private
placements and recapitalization of its securities; (2) spin-off, refinancing, or
partial  sale  or   disposition  of  its  rights  to  certain  of  its  non-core
technologies;  and (3) equipment lease financing. No assurance can be given that
the Company  will be  successful  in  arranging  financing  through any of these
alternatives.



                                     Page 10






         Failure to obtain  such  financing  will  require the Company to delay,
renegotiate, or omit payment on its outside research funding commitments causing
it to  substantially  curtail its  operations,  resulting in a material  adverse
effect on the Company.

         In February  1997,  the  Financial  Accounting  Standards  Board issued
Statement  No.  128,  Earnings  per Share,  which is  required  to be adopted on
December  31,  1997.  At that time,  the Company  will be required to change the
method  currently  used to compute  earnings  per share and to restate all prior
periods.  Under the new requirements for calculating primary earnings per share,
the dilutive  effect of stock options will be excluded.  The impact of Statement
128 on the calculation of basic and dilutive  earnings per share for the quarter
and nine month  periods  ended  September 30, 1997 and September 30, 1996 is not
expected to be material.

Forward-Looking Statements - Cautionary Factors

         Statements  included in this Form 10-QSB  which are not  historical  in
nature  are   forward-looking   statements  made  pursuant  to  the  safe-harbor
provisions   of  the  Private   Securities   Litigation   Reform  Act  of  1995.
Forward-looking  statements  regarding the Company's future business  prospects,
plans,  objectives,  expectations  and  intentions are subject to certain risks,
uncertainties  and other  factors  that  could  cause  actual  results to differ
materially from those projected or suggested in the forward-looking  statements,
including,  but not limited to: the inability to raise additional  capital,  the
possibility that any or all of the Company's products or procedures are found to
be ineffective or unsafe,  the possibility  that third parties hold  proprietary
rights  that  preclude  the  Company  from  marketing  its  products,   and  the
possibility  that third parties will market a product  equivalent or superior to
the Company's product candidates.



                                     Page 11







                                     PART II

                                OTHER INFORMATION

ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K.

<TABLE>
<CAPTION>

         (a)   Exhibits.

<S>            <C>                                                          
               3.1 Amended and Restated Certificate of Incorporation of Vion
               Pharmaceuticals, Inc.
               10.01 Amendment No.1 to License Agreement between Yale University
               and Vion Pharmaceuticals, Inc. (f/k/a OncoRx, Inc.) dated as of June
               12, 1997
               10.02 Amendment No.2 to License Agreement between Yale University
               and Vion Pharmaceuticals, Inc. (f/k/a OncoRx, Inc.) dated as of June
               12, 1997
               27. Article 5 Financial Data Schedule for third quarter 1997.

         (b)   Reports on Form 8-K.

               None

</TABLE>

                                     Page 12







                                   SIGNATURES

         In accordance with the requirements of the Exchange Act, the registrant
caused this report to be signed on its behalf by the undersigned, thereunto duly
authorized.


                                            VION PHARMACEUTICALS, INC.
                                            (Registrant)



                                            By: /s/ Thomas E. Klein
                                               -------------------------------
                                               Thomas E. Klein
                                               Vice President - Finance
                                               (Duly authorized signatory and
                                                Chief Financial Officer)



Date:  November 13, 1997




                                     Page 13




                                                                     EXHIBIT 3.1


                              AMENDED AND RESTATED

                          CERTIFICATE OF INCORPORATION

                                       OF

                           VION PHARMACEUTICALS, INC.



                   FIRST:  The name of the Corporation is VION  PHARMACEUTICALS,
INC.

                   SECOND:  The address,  including  street,  number,  city, and
country, of the registered office of the Corporation in the State of Delaware is
32 Loockerman Square,  Suite L-100, City of Dover,  County of Kent; and the name
of the  registered  agent of the  Corporation  in the State of  Delaware  is The
Prentice-Hall Corporation System, Inc.

                   THIRD:  The  purpose of the  Corporation  is to engage in any
lawful act or activity for which Corporations may be organized under the General
Corporation Law of the State of Delaware.

                   FOURTH:  Authorization,  Designation  and  Amount.  The total
number of shares of all  classes  of stock  which  the  Corporation  shall  have
authority to issue is 40,000,000 shares,  consisting of (a) 35,000,000 shares of
Common Stock, par value $.01 per share (the "Common Stock"),  of which 2,307,550
shares are designated as Series A Common Stock (the "Series A Common Stock") and
(b)  5,000,000  shares  of  Preferred  Stock,  par  value  $.01 per  share  (the
"Preferred Stock"). The powers, terms, conditions, designations, preferences and
privileges,  relative,  participating,  optional and other special  rights,  and
qualifications,  limitations and restrictions,  of the Series A Common Stock and
the Preferred Stock shall be set forth in this Article FOURTH.

                             PART A. PREFERRED STOCK

                  (a) Designation of Preferred  Stock. The Board of Directors of
the  Corporation  (the "Board of Directors") is hereby  expressly  authorized to
provide for,  designate and issue,  out of the authorized but unissued shares of
Preferred  Stock, one or more series of Preferred Stock subject to the terms and
conditions  set forth  herein.  Before any shares of any such series are issued,
the Board of Directors  shall fix, and hereby is expressly  empowered to fix, by
resolution or  resolutions,  the following  provisions of the shares of any such
series:

                           (1) the  designation  of such  series,  the number of
shares to constitute such series and the stated value thereof, if different from
the par value thereof;



                                      -2-





                           (2)  whether  the  shares of such  series  shall have
voting rights or powers in addition to any voting rights required by law and, if
so, the terms of such voting rights or powers, which may be full or limited;

                           (3) the  dividends,  if any,  payable on such series,
whether any such dividends shall be cumulative, and, if so, from what dates, the
conditions and dates upon which such dividends shall be payable,  the preference
or relation  which such  dividends  shall bear to the  dividends  payable on any
shares of stock of any other class or series;

                           (4) whether the shares of such class or series  shall
be subject to redemption by the Corporation,  and, if so, the times,  prices and
other conditions of such redemption;

                           (5) the amount or  amounts  payable  with  respect to
shares of such class or series upon, and the rights of the holders of such class
or series in, the voluntary or involuntary  liquidation,  dissolution or winding
up, or upon any distribution of the assets, of the Corporation;

                           (6) whether the shares of such class or series  shall
be subject to the  operation  of a  retirement  or sinking  fund and, if so, the
extent to and  manner in which any such  retirement  or  sinking  fund  shall be
applied to the purchase or  redemption of the shares of such class or series for
retirement or other corporate purposes and the terms and provisions  relative to
the operation thereof;

                           (7) whether the shares or series shall be convertible
into, or  exchangeable  for, shares of stock of any other class or series of any
other  securities  and,  if so,  the  price  or  prices  or the rate or rates of
conversion or exchange and the method,  if any, of adjusting  the same,  and any
other terms and conditions of exchange;

                           (8) the limitations and  restrictions,  if any, to be
effective  while any  shares of such class or series  are  outstanding  upon the
payment  of  dividends  or the  making of other  distributions  on, and upon the
purchase, redemption or other acquisition by the Corporation of the Common Stock
or shares of stock of any other class or series;

                           (9) the  conditions  or  restrictions,  if any, to be
effective  while any  shares of such class or series  are  outstanding  upon the
creation of  indebtedness of the Corporation or upon the issue of any additional
stock, including additional shares of such class or series or of any other class
or series; and

                           (10) any other powers, designations,  preferences and
relative,   participating,   optional   or  other   special   rights,   and  any
qualifications, limitations or restrictions thereof.

                           The powers,  designations,  preferences and relative,
participating,  optional or other  special  rights of each  series of  Preferred
Stock, and the qualifications,  limitations or restrictions thereof, if any, may
differ from those of any and all other series at any time outstanding. The Board
of Directors is hereby  expressly  authorized from time to time to increase



                                      -3-





(but not above the total  number of  authorized  shares of  Preferred  Stock) or
decrease  (but not below the  number of shares  thereof  then  outstanding)  the
number  of  shares  of stock of any  series  of  Preferred  Stock so  designated
pursuant to this Part A.

                 PART B. COMMON STOCK AND SERIES A COMMON STOCK

                  1.       Common Stock.

                           (a)  Voting.  Each  holder of Common  Stock  shall be
entitled  to one vote for each  share of  Common  Stock  held of  record  on all
matters as to which  holders of Common  Stock shall be  entitled to vote,  which
voting rights shall not be cumulative.  In any election of directors,  no holder
of Common Stock shall be entitled to more than one vote per share.

                           (b) Other Rights.  Except as described in paragraph 2
below with respect to Series A Common  Stock,  each share of Common Stock issued
and  outstanding  shall be identical in all respects  with each other such share
and each  share of Common  Stock  shall be  entitled  to all of the  rights  and
privileges,  and subject to the  limitations  and  qualifications,  of shares of
Common Stock provided by the Delaware General Corporation Law.

                  2.       Series A Common Stock.

                           (a) Same Rights as Common Stock.  Except as set forth
in  subparagraph  (b)  below,  each  share of Series A Common  Stock  issued and
outstanding shall have all of the powers and privileges, and shall be subject to
all of the  qualifications  and  limitations  of  Common  Stock,  and  shall  be
identical in all respects to each share of Common Stock.

                           (b)  Conversion.

                           (i) Each  share of issued  and  outstanding  Series A
Common Stock shall be  automatically  converted,  without notice and without any
action on the part of the holder thereof, into:

                                                     (A)   1.55158   shares   of
Common Stock upon the closing of an "Initial Public Offering" (as defined below)
if such  Initial  Public  Offering  closes prior to the  "Deadline"  (as defined
below),  after giving  effect to the  cancellation  of shares of Series A Common
Stock pursuant to the Agreement  dated as of February 17, 1995 among the holders
thereof and the Corporation,  a copy of which may be obtained from the Secretary
of the Corporation; or

                                                     (B)  one  share  of  Common
Stock if there is no closing of an Initial Public Offering prior to the Deadline
and the  cancellation  of the  shares of Series A Common  Stock  required  to be
deposited in escrow  pursuant to the Agreement  dated as of February 17, 1995 is
not effective at such time;

                           (ii) Upon and after the  conversion  provided  for in
subparagraph  (b)(i),  all rights of holders of shares of Series A Common



                                      -4-






Stock with respect to Series A Common Stock,  except the right to receive shares
of  Common  Stock  in  accordance  with  this  Section,   shall  cease  and  the
certificates  representing  the  Series A Common  Stock  will be deemed  for all
corporate purposes to evidence the shares of Common Stock into which such Series
A Common Stock is  converted,  whether or not the  Corporation  has received the
certificates  representing such shares. The authorized shares of Series A Common
Stock shall  thereafter  resume the status of authorized but unissued  shares of
Common  Stock and may be reissued as shares of Common Stock (but not as Series A
Common Stock).

                           (iii)  Upon such  conversion  the  Corporation  shall
issue to each holder of record of Series A Common  Stock the number of shares of
Common Stock  issuable on conversion of the shares of Series A Common Stock held
by such holder.  However,  such  conversion  shall be  effective  whether or not
certificates representing the Common Stock have been issued to any such holder.

                  (c)  Definitions.

                           (i)  An  "Initial  Public  Offering"  shall  mean  an
underwritten  public  offering of the  Corporation's  Common Stock pursuant to a
Registration  Statement  declared effective under the Securities Act of 1933, as
amended (the "Securities Act").

                           (ii) The  "Deadline"  shall mean  September  1, 1995,
provided that if the  Corporation  has filed a Registration  Statement under the
Securities Act with respect to a public  offering under the Securities Act prior
to September 1, 1995, but such Registration  Statement has not yet been declared
effective on September 1, 1995,  the  Corporation  may extend the Deadline for a
period  of up to 60 days.  The  Corporation  shall  give  prompt  notice of such
extension by certified mail, return receipt requested to each holder of Series A
Common Stock.

                  FIFTH:  The Corporation is to have perpetual existence.

                  SIXTH:  Whenever  a  compromise  or  arrangement  is  proposed
between this  Corporation  and its creditors or any class of them and/or between
this  Corporation  and its  stockholders  or any  class  of them,  any  court of
equitable jurisdiction within the State of Delaware may, on the application in a
summary way of this corporation or of any creditor or stockholder  thereof or on
the application of any creditor or stockholder  thereof or on the application of
any receiver or receivers appointed for this Corporation under the provisions of
section 291 of Title 8 of the Delaware Code or on the application of trustees in
dissolution or of any receiver or receivers appointed for this Corporation under
the provisions of Section 279 of Title 8 of the Delaware Code order a meeting of
the  creditors or class of  creditors,  and/or of the  stockholders  or class of
stockholders  of this  Corporation,  as the case may be, to be  summoned in such
manner  as  the  said  court  directs.  If a  majority  in  number  representing
three-fourths  in value of the  creditors or class of  creditors,  and/or of the
stockholders or class of stockholders of this  Corporation,  as the case may be,
agree  to any  compromise  or  arrangement  and to any  reorganization  of  this
Corporation  as  consequence  of  such  compromise  or  arrangement,   the  said
compromise or arrangement  and the said  reorganization  shall, if sanctioned by
the court to which the said  application  has been  made,  be binding on all the
creditors  or class of  creditors,  and/or on all the  stockholders  or class of
stockholders,  of  this  Corporation,  as the  case  may  be,  and  also on



                                      -5-






this Corporation.

                  SEVENTH:  The Board of Directors is  expressly  authorized  to
adopt, amend or repeal by-laws of the Corporation.

                  EIGHTH:  Elections  of the  directors  need not be by  written
ballot except and to the extent provided by the by-laws of the Corporation.

                  NINTH:  The  personal   liability  of  the  directors  of  the
Corporation  is  hereby  eliminated  to  the  fullest  extent  permitted  by the
provisions  of  paragraph  (7) of  subsection  (b) of Section 102 of the General
Corporation  Law of the  State  of  Delaware,  as the same  may be  amended  and
supplemented.

                  TENTH: The Corporation  shall, to the fullest extent permitted
by the provisions of Section 145 of the General  Corporation Law of the State of
Delaware,  as the same may be amended and  supplemented,  indemnify  any and all
directors  and officers of the  Corporation  from and against any and all of the
expenses,  liabilities  or  other  matters  referred  to in or  covered  by said
section,  and the  indemnification  provided  for  herein  shall  not be  deemed
exclusive of any other rights to which those  indemnified  may be entitled under
any By-Law,  agreement,  vote of  stockholders  or  disinterested  directors  or
otherwise,  both as to  action  in his  official  capacity  and as to  action in
another  capacity  while holding such office,  and shall continue as to a person
who has ceased to be a director  or officer  and shall  insure to the benefit of
the heirs, executors and administrators of such a person.

                  ELEVENTH:  From  time to time  any of the  provisions  of this
certificate  of  incorporation  may be amended,  altered or repealed,  and other
provisions  authorized by the laws of the State of Delaware at the time in force
may be added or inserted in the manner and at the time  prescribed by said laws,
and all rights at any time conferred upon the stockholders of the Corporation by
this certificate of incorporation  are granted subject to the provisions of this
Article ELEVENTH.



                                      -6-







                           VION PHARMACEUTICALS, INC.

             CERTIFICATE OF DESIGNATIONS, PREFERENCES AND RIGHTS OF

                       CLASS A CONVERTIBLE PREFERRED STOCK

             Pursuant to Section 151 of the General Corporation Law
                            of the State of Delaware


                  VION  PHARMACEUTICALS,   INC.,  a  corporation  organized  and
existing  under  the laws of the State of  Delaware  (the  "Corporation"),  does
hereby  certify  that,  pursuant  to the  authority  conferred  on the  Board of
Directors  of  the  Corporation  by  the  Certificate  of  Incorporation  of the
Corporation and in accordance with Section 151 of the General Corporation Law of
the State of Delaware,  the Board of Directors  of the  Corporation  adopted the
following  resolution  establishing  a series of  3,500,000  shares of Preferred
Stock of the Corporation designated as "Class A Convertible Preferred Stock":

                  RESOLVED,  that  pursuant to the  authority  conferred  on the
         Board  of  Directors  of  this   Corporation  by  the   Certificate  of
         Incorporation,  as amended, a series of Preferred Stock, par value $.01
         per share,  of the Corporation is hereby  established and created,  and
         that the  designation  and number of shares  thereof and the voting and
         other  powers,  preferences  and relative,  participating,  optional or
         other  rights of the  shares  of such  series  and the  qualifications,
         limitations and restrictions thereof are as follows:

                       Class A Convertible Preferred Stock

                  1. Designation and Amount.  The shares of such series shall be
designated  as "Class A  Convertible  Preferred  Stock" and the number of shares
constituting such series shall be 3,500,000.

                  2.  Issuance of  Additional  Shares.  The number of authorized
shares of the Class A Preferred  Stock may be reduced or eliminated by the Board
of  Directors  of the  Corporation  or a  duly-authorized  committee  thereof in
compliance  with the General  Corporation  Law of the State of Delaware  stating
that such reduction has been authorized,  but the number of authorized shares of
Class A Preferred  Stock shall not,  except as  contemplated in Section 10(c) be
increased nor shall it be decreased to be less than the then outstanding  shares
of Class A Preferred Stock.

                  3.  Certain  Definitions.  For purposes  hereof the  following
definitions shall apply:

                  "Board" shall mean the Board of Directors of the Corporation.

                  "Business Day" shall mean any day excluding  Saturday,  Sunday
and any day which shall be in the State of New York a legal  holiday or a day on
which  banking  institutions  in



                                      -7-






the State of New York are authorized by law to close.

                  "Common Stock" shall mean the Common Stock, par value $.01 per
share, of the Corporation.

                  "Corporation"  shall  mean  Vion   Pharmaceuticals,   Inc.,  a
Delaware corporation.

                  "Dividend  Payment  Date" shall have the  meaning  assigned to
such term in Section 4(a)(i) hereof.

                  "Fair Value"  shall have the meaning  assigned to such term in
Section 9(j) hereof.

                  "Issuance  Date" shall mean the date of  original  issuance of
the Class A Preferred Stock.

                  "Junior  Stock"  shall mean the Common Stock and any shares of
Preferred  Stock of any series or class of the  Corporation,  whether  presently
outstanding or hereafter issued,  which are by their terms expressly made junior
to the  shares  of Class A  Preferred  Stock at the time  outstanding  as to the
distribution of assets on any voluntary or involuntary liquidation,  dissolution
or winding up of the Corporation and are not subject to mandatory  redemption or
repurchase  prior to the date on which no shares of Class A Preferred  Stock are
outstanding.

                  "Majority of the Class A Preferred Stock" shall mean more than
50% of the outstanding shares of Class A Preferred Stock.

                  "Preferred Stock" shall mean the unclassified Preferred Stock,
par value $.01 per share, of the Corporation.

                  "Record Date" shall have the meaning  assigned to such term in
Section (4)(a)(i) hereof.

                  "Redemption Date" shall have the meaning assigned to such term
in Section 7(b) hereof.

                  "Redemption  Price"  shall have the  meaning  assigned to such
term in Section 7(c) hereof.

                  "Redemption  Notice"  shall have the meaning  assigned to such
term in Section 7(d) hereof.

                  "Class A Conversion  Ratio" shall have the meaning assigned to
such term in Section 9(b) hereof.

                  "Class A  Preferred  Stock"  shall mean the Class A  Preferred
Stock, par value $.01 per share, of the Corporation.



                                      -8-





                  "Special  Dividend  Date" shall have the  meaning  assigned to
such term in Section 4(a)(ii) hereof.

                  "Subsidiary"  shall mean any  corporation,  limited  liability
company or other entity, a majority of the voting stock or interest of which is,
at  the  time  as of  which  any  determination  is  being  made,  owned  by the
Corporation either directly or through one or more Subsidiaries.

                  "Voting  Stock" shall mean any shares  having  general  voting
power in electing the Board (irrespective of whether or not at the time stock of
any other  class or  classes  has or might  have  voting  power by reason of the
occurrence of any contingency). The Common Stock and the Class A Preferred Stock
are Voting Stock.

                  4. Dividends.

                  (a)  Dividends  and  Distributions.  (i)  The  holders  of the
outstanding  Class A Preferred  Stock  shall be entitled to receive  semi-annual
dividends,  on a  cumulative  basis,  equal to five percent (5%) (on a per annum
basis) of the Class A Preferred Stock held by such holder,  payable, in arrears,
in additional shares of Class A Preferred Stock. Upon the Dividend Payment Date,
to the extent  permitted by applicable law, the holder shall be deemed to be the
holder of record of the shares of Class A  Preferred  Stock  issuable  upon each
such  semi-annual  dividend,  notwithstanding  that  the  transfer  books of the
Company shall then be closed or certificates representing such Class A Preferred
Stock  shall not then have been  actually  delivered  to the  holder.  Each such
dividend described above shall be payable on or about the first day of April and
October in each year as fixed by the Board,  or such other dates as are fixed by
the Board (each a "Dividend  Payment Date"), to the holders of record of Class A
Preferred  Stock at the close of  business on or about the 15th day of the month
next preceding such first day of April or October,  as the case may be, as fixed
by the  Board  (each a "Record  Date").  Such  dividends  shall  become  payable
beginning  on the first  Dividend  Payment  Date for which  the  Record  Date is
subsequent  to the Issuance  Date.  Dividends  payable for any partial  dividend
period shall be computed on the basis of the actual days elapsed in such period.

                  (ii) In the event  that on the date that is  twenty-four  (24)
months  after the  Issuance  Date (the  "Special  Dividend  Date"),  the average
closing bid price of the Common  Stock for the thirty (30)  consecutive  trading
days immediately  preceding the Special  Dividend Date (the "Subsequent  Trading
Price")  is less than 100% of the then  applicable  Conversion  Price,  then the
Company shall pay a one time dividend of Class A Preferred  Stock for each share
of Class A Preferred Stock  outstanding  equal to the lesser of (a) one share of
Class A  Preferred  Stock  or  (b)(x)  one  share  of  Class A  Preferred  Stock
multiplied by (y) the then applicable Conversion Price divided by the Subsequent
Trading Price,  minus one;  provided,  however,  that the Company shall have the
option  of  delaying  the  Special  Dividend  Date for up to 60 days at its sole
discretion and the dividend  calculation  shall be made as if such date were the
Special Dividend Date.

                  (iii) If the Corporation calls the Class A Preferred Stock for
redemption  at any time prior to three (3) years  from the  Issuance  Date,  the
Corporation  will pay a one time dividend payable in shares of Class A Preferred
Stock equal to fifteen percent (15%) of the Class



                                      -9-






A  Preferred  Stock  held by such  holder  which  shall  be in  addition  to any
cumulative  dividends  described  in  subparagraph  (i) hereof  and any  Special
Dividend  described in subparagraph  (ii) hereof.  Prior to the Redemption Date,
the holder will be entitled  to convert  such shares of Class A Preferred  Stock
issuable pursuant to this Section 4(a)(iii).

                  (b) To the extent the  amount of any  dividend  payable to any
holder of Class A  Preferred  Stock does not equal an  integral  multiple of one
share of Class A Preferred  Stock,  such fractional share shall be rounded up to
the next whole integral number of shares.

                  (c) Subject to the prior and superior rights of the holders of
any shares of any series or class of capital stock ranking prior and superior to
the shares of Class A Preferred Stock with respect to dividends,  the holders of
shares of Class A Preferred Stock shall be entitled to receive,  as, when and if
declared by the Board of the  Corporation,  out of assets legally  available for
that purpose, dividends or distributions in cash, stock or otherwise.

                  (d) If and when the Corporation  shall declare any dividend or
distribution on the Common Stock (other than a stock dividend),  the Corporation
shall, concurrently with the declaration of such dividend or distribution on the
Common Stock,  declare a like dividend or  distribution,  as the case may be, on
the Class A  Preferred  Stock in an amount per share  equal to (x) the amount of
the dividend or  distribution  per share of Common Stock  multiplied  by (y) the
number of shares of Common Stock into which one share of Class A Preferred Stock
is then convertible.

                  (e) Any dividend or distribution payable to the holders of the
Class A  Preferred  Stock  pursuant to this  Section  4(d) shall be paid to such
holders at the same time as the dividend or  distribution on the Common Stock by
which it is measured is paid.

                  (f) All dividends or  distributions  declared upon the Class A
Preferred Stock shall be declared pro rata per share.

                  5. Liquidation Rights of Class A Preferred Stock. In the event
of a  liquidation,  dissolution  or  winding  up  of  the  Corporation,  whether
voluntary or involuntary (a "Liquidation Event"), after payment or provision for
payment of debts and other  liabilities of the  Corporation,  the holders of the
Class A Preferred Stock then outstanding  shall first be entitled to be paid out
of the assets of the Corporation available for distribution to its shareholders,
whether such assets are  capital,  surplus,  or earnings,  before any payment or
declaration and setting apart for payment of any amount shall be made in respect
of Junior Stock,  an amount equal to $10.00 per share of Class A Preferred Stock
plus an amount equal to all declared and unpaid  dividends  thereon  (subject to
appropriate adjustment to reflect any stock split, combination, reclassification
or reorganization of the Class A Preferred Stock).  Following payment in full of
the full preferential  amounts set forth in the immediately  preceding sentence,
the holders of the Class A Preferred  Stock shall not be entitled to any further
distribution in the event of a Liquidation Event. If upon any Liquidation Event,
whether voluntary or involuntary, the assets to be distributed to the holders of
the Class A Preferred  Stock shall be insufficient to permit the payment to such
shareholders of the full preferential amounts aforesaid,  then all of the assets
of the  Corporation  to be distributed  shall be so  distributed  ratably to the
holders of the Class A  Preferred  Stock on the



                                      -10-





basis of the number of shares of Class A  Preferred  Stock  held.  All shares of
Class A Preferred  Stock  shall rank as to payment  upon the  occurrence  of any
Liquidation  Event  above  senior to the Common  Stock as  provided  herein and,
unless the terms of such series  shall  provide  otherwise,  senior to all other
series of the Corporation's preferred stock.

                  6. Merger, Consolidation.

                  (a) At any time, in the event of:

                      (1) any consolidation or merger of the Corporation with or
into  any  other   corporation   or  other  entity,   or  any  other   corporate
reorganization  or  transaction  or  series  of  related   transactions  by  the
Corporation  in which in  excess  of 50% of the  Corporation's  voting  power is
transferred, or

                      (2) a sale or other  disposition  of all or  substantially
all of the  assets of the  Corporation  (any such  event in (1) or (2) a "Merger
Event"), then:

                      in the case of a Merger Event,  the holders of the Class A
Preferred  Stock shall receive for each share of Class A Preferred Stock in cash
or in securities (including,  without limitation, debt securities) received from
the acquiring  corporation or other entity or person, or a combination  thereof,
at the closing of any such  transaction,  an amount equal to $10.00  (subject to
appropriate adjustment to reflect any stock split, combination, reclassification
or  reorganization  of Class A  Preferred  Stock)  plus an  amount  equal to all
declared and unpaid dividends on such shares; and

                      Such  payments  shall be made with  respect to the Class A
Preferred  Stock by (i) redemption or purchase of such shares by the Corporation
or (ii)  purchase or  acquisition  of such shares by the  surviving or acquiring
corporation, entity or person immediately upon consummation of the Merger Event.
Before any payment or  distribution  is made to the holders of the Junior Stock,
the full preferential  amounts stated in this subsection  6(a)(2) shall first be
paid to the holders of the Class A Preferred Stock. In the event the full amount
of such  payment is not paid to the holders of the Class A Preferred  Stock upon
or immediately prior to such transaction in accordance  herewith,  then all cash
and  securities   (including,   without  limitation,   debt  securities)  to  be
distributed in respect of the proposed  transaction shall be distributed ratably
among the holders of the Class A Preferred Stock.

                  (b) Any  securities  or other  property to be delivered to the
holders of the Class A Preferred  Stock or Common Stock pursuant to Section 6(a)
hereof above shall be valued as follows:

                           (1) (A) If traded on a securities  exchange or quoted
on the  Nasdaq  National  Market  System,  the  value  shall be deemed to be the
average of the closing  prices of the securities on such exchange or market over
the 30-day period ending three (3) days prior to the closing;

                               (A)  If  actively  traded  over-the-counter,  the
value  shall be deemed



                                      -11-





to be the average of the closing bid prices over the 30-day  period ending three
(3) days prior to the closing; and

                               (B) If  there is no  active  public  market,  the
value shall be the fair market value thereof, as determined in good faith by the
Corporation's Board.

                           (2) All other  securities or other  property shall be
valued at the fair market  value  thereof,  as  determined  in good faith by the
Corporation's Board.

                  (c) In the event the  requirements  of Section 6(a) hereof are
not complied with, the Corporation shall forthwith either:

                           (1) Cause such  Merger  Event to be  postponed  until
such time as the requirements of this Section 6 have been complied with; or

                           (2) Cancel  such  Merger  Event,  in which  event the
rights, preferences and privileges of the holders of the Class A Preferred Stock
shall  revert  to and be the same as such  rights,  preferences  and  privileges
existing  immediately  prior  to the date of the  first  notice  referred  to in
Section 6(d) hereof.

                  (d) The Corporation  shall give each holder of record of Class
A Preferred  Stock written notice of such impending  transaction  not later than
thirty  (30) days prior to the  shareholders'  meeting  called to  approve  such
transaction,  or thirty  (30) days  prior to the  closing  of such  transaction,
whichever is earlier, and shall also notify such holders in writing of the final
approval of such  transaction.  The first of such  notices  shall  describe  the
material terms and conditions of the impending transaction and the provisions of
this Section 6, and the  Corporation  shall  thereafter give such holders prompt
notice of any material  changes.  The  transaction  shall in no event take place
sooner than thirty (30) days after the  Corporation  has given the first  notice
provided for herein or sooner than ten (10) days after the Corporation has given
notice of any material changes provided for herein; provided, however, that such
periods may be shortened  upon the written  consent of the holders of a Majority
of the Class A Preferred Stock.

                  (e) The  provisions  of this  Section 6 are in addition to the
protective provisions of Section 10 hereof.

                  (f) A consolidation  or merger of the Corporation with or into
another  corporation,  other than in a transaction  described in this Section 6,
shall not be considered a Merger Event and  accordingly  the  Corporation  shall
make  appropriate  provision  to ensure  that the terms of this  Certificate  of
Designations survive such transaction.

                  7. Redemption.

                  (a)   Restriction  on  Redemption  and  Purchase.   Except  as
expressly  provided in this Section 7, the Corporation  shall not have the right
to purchase, call, redeem or otherwise acquire for value any or all of the Class
A Preferred Stock.



                                      -12-






                  (b) Optional Redemption. At any time, beginning six (6) months
after the Issuance Date, the Corporation may, at its option, redeem for cash the
Class A  Preferred  Stock in whole,  but not in part,  at the  Redemption  Price
hereinafter  specified,  in  the  event  that  the  closing  bid  price  of  the
Corporation's  Common Stock for twenty (20)  trading days in any thirty  trading
(30) day period, exceeds [insert price which is 150% of the closing bid price on
the Issuance Date]. The Corporation  shall not redeem Class A Preferred Stock or
give notice of any redemption  unless the  Corporation has sufficient and lawful
funds to redeem all of the then outstanding Class A Preferred Stock. The date on
which the Class A  Preferred  Stock is to be redeemed  pursuant to this  Section
7(b) is herein  called the  "Redemption  Date." If the  Corporation  redeems the
Class A Preferred  Stock at any time prior to three (3) years from the  Issuance
Date,  the  Corporation  will pay an  additional  dividend  pursuant  to Section
4(a)(iii).

                  The  "closing  bid  price" for each  trading  day shall be the
reported closing bid price on the NASDAQ Small-Cap Market or the NASDAQ National
Market System (collectively referred to as, "NASDAQ") or, if the Common Stock is
not quoted on NASDAQ, on the principal national securities exchange on which the
Common  Stock is listed or admitted to trading  (based on the  aggregate  dollar
value of all  securities  listed or admitted  to  trading)  or, if not listed or
admitted to trading on any national securities exchange or quoted on NASDAQ, the
closing bid price in the over-the-counter market as furnished by any NASD member
firm selected from time to time by the Corporation for that purpose, or, if such
prices  are  not  available,  the  fair  market  value  set by,  or in a  manner
established by, the Board of the Corporation in good faith.  "Trading day" shall
mean a day on which the national securities exchange or NASDAQ used to determine
the closing bid price is open for the  transaction  of business or the reporting
of trades  or, if the  closing  bid price is not so  determined,  a day on which
NASDAQ is open for the transaction of business.

                  (c)  Redemption  Price.  The  Redemption  Price of the Class A
Preferred Stock (the  "Redemption  Price") shall be an amount per share equal to
$10.00   (subject  to  appropriate   adjustment  to  reflect  any  stock  split,
combination,  reclassification or reorganization of the Class A Preferred Stock)
plus all declared and unpaid dividends thereon,  to and including the Redemption
Date.

                  (d) Redemption  Notice.  The Corporation  shall, not less than
thirty  (30) days nor more than sixty (60) days  prior to the  Redemption  Date,
give written  notice  ("Redemption  Notice") to each holder of record of Class A
Preferred Stock to be redeemed. The Redemption Notice shall state:

                           (1) that  all of the  outstanding  shares  of Class A
                  Preferred  Stock are to be  redeemed  and the total  number of
                  shares being redeemed;

                           (2) the number of shares of Class A  Preferred  Stock
                  held by the holder which the Corporation intends to redeem;

                           (3) the Redemption Date and Redemption Price;



                                      -13-





                           (4) that the  holder's  right to convert  the Class A
                  Preferred Stock into shares of the Common Stock as provided in
                  Section 9 hereof will terminate on the Redemption Date; and

                           (5) the time, place and manner in which the holder is
                  to   surrender  to  the   Corporation   the   certificate   or
                  certificates  representing  the  shares  of Class A  Preferred
                  Stock to be redeemed.

                  (e) Payment of Redemption Price and Surrender of Stock. On the
Redemption  Date, the Redemption  Price of the Class A Preferred Stock scheduled
to be redeemed or called for  redemption  shall be payable to the holders of the
Class A  Preferred  Stock.  On or  before  5:00  p.m.  New York City time on the
Redemption  Date, each holder of Class A Preferred Stock to be redeemed,  unless
the holder has  exercised his right to convert the shares as provided in Section
9 hereof,  shall  surrender the certificate or  certificates  representing  such
shares to the  Corporation,  in the  manner and at the place  designated  in the
Redemption  Notice,  and thereupon the Redemption Price for such shares shall be
payable  to the  order of the  person  or  entity  whose  name  appears  on such
certificate  or  certificates  as  the  owner  thereof,   and  each  surrendered
certificate shall be cancelled and retired.

                  (f)  Termination of Rights.  If the Redemption  Notice is duly
given,  and,  if at  least  ten (10)  days  prior to the  Redemption  Date,  the
Redemption  Price is either  paid or made  available  for  payment  through  the
arrangement  specified in subsection (g) below,  then  notwithstanding  that the
certificates  evidencing any of the shares of Class A Preferred  Stock so called
or scheduled for redemption have not been  surrendered,  all rights with respect
to such shares shall  forthwith  after the Redemption  Date cease and terminate,
except only (i) the right of the holders to receive the Redemption Price without
interest  upon  surrender  of their  certificates  therefor or (ii) the right to
receive shares of Common Stock upon exercise of the conversion  rights  provided
in Section 9 hereof on or before the Redemption Date.

                  (g)  Deposit  of Funds.  At least  ten (10) days  prior to the
Redemption Date, the Corporation shall deposit with any bank or trust company in
New York, New York, a sum equal to the aggregate  Redemption Price of all shares
of the Class A Preferred Stock scheduled to be redeemed or called for redemption
and not yet redeemed, with irrevocable instructions and authority to the bank or
trust company to pay, on or after the Redemption  Date, the Redemption  Price to
the  respective  holders  upon the  surrender of their share  certificates.  The
deposit shall  constitute full payment for the shares of Class A Preferred Stock
to the holders  thereof,  and from and after the date of such  deposit  (even if
prior to the Redemption  Date),  the shares of Class A Preferred  Stock shall be
deemed to be redeemed and no longer  outstanding,  and the holders thereof shall
cease to be shareholders  with respect to such shares of Class A Preferred Stock
and shall have no rights with respect thereto,  except the right to receive from
the bank or trust company payment of the Redemption Price of the shares of Class
A Preferred  Stock,  without  interest,  upon  surrender  of their  certificates
therefor or the right to convert  such  shares of Class A  Preferred  Stock into
shares of Common Stock as provided in Section 9 hereof.  Any monies so deposited
and unclaimed at the end of one year from the Redemption  Date shall be released
or repaid to the Corporation,  after which time the holders of shares of Class A
Preferred  Stock called for redemption  shall be entitled to receive  payment of
the Redemption Price only from the 




                                      -14-






Corporation.

                  8. Voting Rights.

                  (a) Class A Preferred Stock.  Each holder of shares of Class A
Preferred  Stock  shall  be  entitled  to vote on all  matters  and,  except  as
otherwise  expressly  provided herein,  shall be entitled to the number of votes
equal to the largest number of full shares of Common Stock into which the shares
of Class A Preferred  Stock of such holder could be  converted,  pursuant to the
provisions of Section 9 hereof,  at the record date for the determination of the
shareholders entitled to vote on such matters.

                  (b) Voting Together.  Except as otherwise  expressly  provided
herein or as required by law, the holders of Class A Preferred  Stock and Common
Stock shall vote together and not as separate classes.

                  (c) Amendment of Conversion  Terms of Class A Preferred Stock.
Without  the  approval  by the  holders of a Majority  of the Class A  Preferred
Stock, the Corporation will not (i) change by amendment the Restated Certificate
of  Incorporation  of the Corporation or the terms and provisions of the Class A
Preferred  Stock  which  adversely  affects  the rights and  preferences  of the
holders  of the Class A  Preferred  Stock nor (ii)  authorize  the  issuance  of
capital stock ranking senior to the Class A Preferred Stock.

                  9.  Conversion.  The holders of Class A Preferred  Stock shall
have the following conversion rights:

                  (a)  Right to  Convert.  The  shares  of  Class A  Convertible
Preferred Stock shall be convertible,  in whole or in part, at the option of the
holder  thereof  and upon  notice to the  Corporation  at any time  prior to the
Redemption  Date, into fully paid and  nonassessable  shares of Common Stock and
such other securities and property as hereinafter provided.

                  (b)  Class  A  Conversion   Price.   The  shares  of  Class  A
Convertible  Preferred  Stock  shall be  convertible  initially  at the ratio of
2.777777  shares of Common  Stock  for each  full  share of Class A  Convertible
Preferred  Stock and shall be subject to  adjustment  as  provided  herein  (the
"Class A Conversion  Ratio").  The initial  conversion price per share of Common
Stock is $3.60 and shall be  subject  to  adjustment  as  provided  herein  (the
"Conversion  Price").  For purposes of this resolution,  the "Class A Conversion
Ratio" applicable to a share of Class A Convertible Preferred Stock shall be the
number of shares of Common  Stock and  number or amount of any other  securities
and  property as  hereinafter  provided  into which a share of Class A Preferred
Stock is then  convertible and shall be determined by dividing the then existing
Conversion Price into $10.00.

                  (c) Mechanics of Conversion.  Each holder of Class A Preferred
Stock that desires to convert its shares of Class A Preferred  Stock into shares
of Common Stock shall surrender the certificate or certificates  therefor,  duly
endorsed,  at the office of the  Corporation  or of any  transfer  agent for the
Class A Preferred  Stock or Common Stock,  and shall give written  notice to the
Corporation at such office that such holder elects to convert the same and shall
state



                                      -15-





therein  the  number of  shares  of Class A  Preferred  Stock  being  converted.
Thereupon  the  Corporation  shall  promptly  issue and deliver to such holder a
certificate  or  certificates  for the number of shares of Common Stock to which
such  holder  is  entitled.  Such  conversion  shall be deemed to have been made
immediately  prior to the close of business on the date of such surrender of the
certificate or certificates  representing  the shares of Class A Preferred Stock
to be  converted,  and the person or entity  entitled  to receive  the shares of
Common Stock issuable upon such conversion  shall be treated for all purposes as
the record holder of such shares of Common Stock on such date. In the event that
a notice  to  convert  is given  following  a  notice  of a Merger  Transaction,
Liquidation  Event or a Redemption but prior to the  consummation  of one of the
foregoing events and such event is not consummated, the conversion shall, at the
option of the holder of the Class A Preferred Stock who tendered for conversion,
be voidable  and such holder  shall have the right to maintain  ownership of the
shares of Class A Preferred  Stock  tendered for  conversion,  provided that the
holder shall have notified the  Corporation  accordingly  within sixty (60) days
after such failure to consummate the event.

                  (d)  Adjustment  for Stock  Splits  and  Combinations.  If the
Corporation  at any time or from time to time after the Issuance  Date effects a
subdivision of the outstanding  Common Stock,  the Class A Conversion Ratio then
in  effect   immediately   before  that  subdivision  shall  be  proportionately
increased,  and conversely,  if the Corporation at any time or from time to time
after the Issuance Date combines the  outstanding  shares of Common Stock into a
smaller  number  of  shares,  the  Class  A  Conversion  Ratio  then  in  effect
immediately  before the  combination  shall be  proportionately  decreased.  Any
adjustment  under this  subsection  (d) shall  become  effective at the close of
business on the date the subdivision or combination becomes effective.

                  (e) Adjustment for Certain Dividends and Distributions. If the
Corporation  at any time or from time to time after the Issuance Date makes,  or
fixes a record date for the determination of holders of Common Stock entitled to
receive, a dividend or other distribution payable in additional shares of Common
Stock,  then and in each such event the Class A Conversion  Ratio then in effect
shall be increased as of the time of such  issuance or, in the event such record
date is fixed,  as of the close of business on such record date, by  multiplying
the Class A Conversion  Ratio then in effect by a fraction (1) the  numerator of
which shall be the total number of shares of Common Stock issued and outstanding
immediately  prior to the time of such issuance or the close of business on such
record  date plus the number of shares of Common  Stock  issuable  in payment of
such dividend or  distribution,  and (2) the  denominator  of which shall be the
total number of shares of Common Stock issued and outstanding  immediately prior
to the time of such  issuance  or the close of  business  on such  record  date;
provided,  however,  that, if such record date is fixed and such dividend is not
fully paid or if such distribution is not fully made on the date fixed therefor,
the Class A Conversion Ratio shall be recomputed  accordingly as of the close of
business on such record date and thereafter  the Class A Conversion  Ratio shall
be adjusted  pursuant to this subsection (e) as of the time of actual payment of
such dividends or distributions.

                  (f) Adjustments for Other Dividends and Distributions.  In the
event the  Corporation  at any time or from time to time after the Issuance Date
makes, or fixes a record date for the  determination  of holders of Common Stock
entitled to receive, a dividend or other  



                                      -16-






distribution  payable in  securities  of the  Corporation  other than  shares of
Common Stock,  then and in each such event  provision  shall be made so that the
holders of Class A Preferred  Stock shall receive upon  conversion  thereof,  in
addition  to the  number of shares of Common  Stock  receivable  thereupon,  the
amount of securities of the Corporation which they would have received had their
shares of Class A Preferred  Stock been  converted into Common Stock on the date
of such event and had they  thereafter,  during the period from the date of such
event to and including the conversion date, retained such securities  receivable
by them as aforesaid during such period subject to all other adjustments  called
for during such period under this Section 9.

                  (g)    Adjustment   for    Reclassification,    Exchange   and
Substitution.  In the  event  that at any time or from  time to time  after  the
Issuance  Date,  the Common Stock  issuable  upon the  conversion of the Class A
Preferred Stock is changed into the same or a different  number of shares of any
class or classes  of stock,  whether by  recapitalization,  reclassification  or
otherwise  (other than a subdivision  or combination of shares or stock dividend
or a  reorganization,  merger,  consolidation  or sale of assets,  provided  for
elsewhere  in this Section 9), then and in any such event each holder of Class A
Preferred  Stock  shall  have the  right  thereafter  to  convert  such  Class A
Preferred  Stock  into the kind and  amount of stock and  other  securities  and
property  receivable  upon  such  recapitalization,  reclassification  or  other
change,  by holders of the maximum  number of shares of Common  Stock into which
such shares of Class A Preferred  Stock  could have been  converted  immediately
prior to such  recapitalization,  reclassification  or  change,  all  subject to
further adjustment as provided herein.

                  (h)  Reorganizations,  Mergers,  Consolidations  or  Sales  of
Assets.  If at any time or from time to time after the Issuance  Date there is a
capital  reorganization  of the Common  Stock  (other  than a  recapitalization,
subdivision,  combination,  reclassification  or exchange of shares provided for
elsewhere in this  Section 9) or a merger or  consolidation  of the  Corporation
with or into another corporation, or the sale of all or substantially all of the
Corporation's  properties and assets to any other person (other than as provided
for in Section 6), then, as part of such reorganization,  merger,  consolidation
or sale,  provision  shall be made so that the  holders of the Class A Preferred
Stock shall  thereafter  be entitled to receive upon  conversion  of the Class A
Preferred Stock the number of shares of stock or other securities or property to
which a holder  of the  number  of  shares  of  Common  Stock  deliverable  upon
conversion  would have been  entitled on such  capital  reorganization,  merger,
consolidation or sale. In any such case, appropriate adjustment shall be made in
the  application  of the provisions of this Section 9 with respect to the rights
of the holders of the Class A Preferred Stock after the reorganization,  merger,
consolidation  or  sale  to the end  that  the  provisions  of  this  Section  9
(including  adjustment  of the Class A  Conversion  Ratio then in effect and the
number of shares  purchasable  upon  conversion of the Class A Preferred  Stock)
shall be  applicable  after  that  event and be as nearly  equivalent  as may be
practicable.

                  (i) Adjustment  for Issuances.  If at any time or from time to
time after the Issuance Date, the  Corporation  shall issue or sell Common Stock
or rights, options,  warrants or other securities convertible into Common Stock,
excluding those rights,  options,  warrants or other securities convertible into
Common Stock  outstanding as of the Issuance Date, at a price per share which is
lower  than both (A) the then  effective  Conversion  Price and (B) the  average
closing bid price (as defined in Section  7(b)) for the thirty (30)  consecutive
trading days immedi-



                                      -17-






ately prior to such issuance,  then the  conversion  ratio shall be increased by
multiplying the conversion ratio  theretofore in effect by a fraction,  of which
the  numerator  shall be the  number  of  shares  of  Common  Stock  outstanding
immediately prior to the issuance of such shares, rights,  options,  warrants or
convertible  securities  plus the number of  additional  shares of Common  Stock
offered for subscription or purchase,  and of which the denominator shall be the
number of shares of Common Stock  outstanding  immediately prior to the issuance
of such rights,  options,  warrants or convertible securities plus the number of
shares which the aggregate  offering price of the total number of shares offered
would purchase at the then effective Conversion Price,  provided,  however, that
no such  adjustment  shall be made which results in a decrease in the conversion
ratio. Such adjustment shall be made whenever such rights, options,  warrants or
convertible  securities are issued,  and shall become effective  immediately and
retroactive to the record date for the determination of stockholders entitled to
receive   such   rights,   options,    warrants   or   convertible   securities.
Notwithstanding the foregoing,  no adjustment will be required on account of (i)
the exercise of any of the options  presently  outstanding  under the  Company's
Amended and Restated 1993 Stock Option Plan (the "Plan") for officers, directors
and certain  other key personnel of the Company or (ii) the issuance or exercise
of any other  securities  which may hereafter be granted or exercised  under the
Plan or under any other employee benefit plan of the Company.

                  (j) Adjustment for Distributions.  If at any time or from time
to time after the Issuance  Date,  the  Corporation  shall  distribute to all or
substantially  all holders of its Common Stock evidences of its  indebtedness or
assets  (excluding cash dividends or  distributions  out of earnings) or rights,
options,  warrants or convertible  securities  containing the right to subscribe
for or purchase Common Stock (excluding  those referred to in subparagraphs  (f)
and (i) above),  then in each case the  conversion  ratio shall be  increased by
multiplying the conversion ratio  theretofore in effect by a fraction,  of which
the numerator shall be the then Fair Value on the date of such distribution, and
of which the  denominator  shall be such Fair  Value on such date minus the then
Fair Value (as so  determined)  of the  portion of the  assets or  evidences  of
indebtedness so distributed or of such subscription rights, options, warrants or
convertible securities applicable to one share, provided,  however, that no such
adjustment  shall be made which results in a decrease in the  conversion  ratio.
Such adjustment  shall be made whenever any such  distribution is made and shall
become effective on the date of distribution  retroactive to the record date for
the determination of stockholders  entitled to receive such distribution.  "Fair
Value" shall equal the average closing bid price for the thirty (30) consecutive
trading days  immediately  prior to the date of  distribution  multiplied by the
then current conversion ratio.

                  (k)  Adjustment  for  Expirations.  Upon the expiration of any
rights,  options,  warrants  or  conversion  privileges,  the  issuance of which
necessitated an adjustment to the conversion ratio as set forth herein,  if such
shall  not have been  exercised,  then the  conversion  ratio  shall,  upon such
expiration, be readjusted and shall thereafter be such as it would have been had
it been originally  adjusted (or had the original  adjustment not been required,
as the case may be) on the  basis of (A) the fact  that  Common  Stock,  if any,
actually issued or sold upon the exercise of such rights,  options,  warrants or
conversion  privileges,  and (B) the fact that such shares of Common  Stock,  if
any,  were  issued  or  sold  for the  consideration  actually  received  by the
Corporation upon such exercise plus the consideration, if any, actually received
by the Corporation for the issuance,  sale or grant of all such rights, options,
warrants or conversion 



                                      -18-





privileges whether or not exercised.


                  (l)  Certificate of Adjustment.  In each case of an adjustment
or  readjustment  of the  Class A  Conversion  Ratio,  the  Corporation,  at its
expense,  shall cause its Chief Financial Officer or Chief Accounting Officer to
compute such adjustment or readjustment in accordance with the provisions hereof
and prepare a certificate  showing such  adjustment or  readjustment,  and shall
mail such  certificate,  by certified mail,  return receipt  requested,  postage
prepaid,  to each  registered  holder  of the  Class A  Preferred  Stock  at the
holder's address as shown in the Corporation's  books. The certificate shall set
forth such  adjustment or  readjustment,  showing in detail the facts upon which
such adjustment or readjustment is based, including a statement of (1) the Class
A Conversion Ratio at the time in effect and (2) the type and amount, if any, of
other property which at the time would be received upon  conversion of the Class
A Preferred Stock.

                  (m)  Notices  of  Record  Date.  In the  event  (i)  that  the
Corporation  fixes a date for  determination  of  stockholders  of record of any
class of securities for the purpose of determining  the holders  thereof who are
entitled to receive any dividend or other  distribution,  or (ii) of any capital
reorganization of the Corporation,  any  reclassification or recapitalization of
the  capital  stock of the  Corporation,  any  merger  or  consolidation  of the
Corporation with or into any other  corporation or other entity, or any transfer
of all or substantially all of the assets of the Corporation to any other person
or entity or any voluntary or involuntary dissolution, liquidation or winding up
of the  Corporation,  the  Corporation  shall  mail to each  holder  of  Class A
Preferred  Stock at least  thirty (30) days prior to the record  date  specified
therein,  or, if  applicable,  the effective  date of such  transaction or event
specified  therein,  a notice  specifying (1) the record date for the purpose of
determining  the  stockholders  who are  entitled  to receive  such  dividend or
distribution and a description of such dividend or distribution, (2) the date on
which  any  such  reorganization,   reclassification,  transfer,  consolidation,
merger, dissolution,  liquidation or winding up is expected to become effective,
or (3) the date, if any,  that is to be fixed,  as to when the holders of record
of Common Stock (or other securities) shall be entitled to exchange their shares
of  Common  Stock  (or  other  securities)  for  securities  or  other  property
deliverable upon such reorganization, reclassification, transfer, consolidation,
merger, dissolution, liquidation or winding up.

                  (n) Fractional  Shares.  No fractional  shares of Common Stock
shall be issued upon  conversion of the Class A Preferred  Stock.  To the extent
the  amount  of any  share of  Common  Stock  payable  to any  holder of Class A
Preferred  Stock  does not  equal an  integral  multiple  of one share of Common
Stock,  such  fractional  share  shall be rounded up to the next whole  integral
number of shares.

                  (o) Reservation of Common Stock Issuable Upon Conversion.  The
Corporation  shall at all times  following  the date  which is ninety  (90) days
after the Issuance  Date,  reserve and keep  available out of its authorized but
unissued  shares of Common  Stock,  solely  for the  purpose  of  effecting  the
conversion  of the shares of the Class A  Preferred  Stock,  such  number of its
shares of Common  Stock as shall from time to time be  sufficient  to effect the
conversion of all outstanding shares of the Class A Preferred Stock.



                                      -19-






                  (p) Notices.  Any notice required or permitted by this Section
9 or any other  provision  hereof to be given  shall be in writing and be deemed
given upon the  earlier  of actual  receipt or three (3) days after the same has
been  deposited in the United  States mail,  by  certified or  registered  mail,
return receipt requested,  postage prepaid,  and addressed (i) to each holder of
record of Class A Preferred Stock at the address of such holder appearing on the
books of the  Corporation,  or (ii) to the  Corporation  at 4 Science Park,  New
Haven,  CT, 06511 or (iii) to the  Corporation or any such holder,  at any other
address  for the giving of notice  specified  in a written  notice  given to the
other.

                  (q)  Payment  of  Taxes.  The  Corporation  will pay all taxes
(other than taxes based upon income) and other governmental  charges that may be
imposed  with  respect to the issue or delivery  of shares of Common  Stock upon
conversion of shares of Class A Preferred Stock, including,  without limitation,
any tax or other charge imposed in connection with any transfer  involved in the
issue and  delivery of shares of Common Stock in a name other than that in which
the shares of Class A Preferred Stock so converted were registered.

                  (r) No  Amendment or  Impairment.  The  Corporation  shall not
amend  its  Restated   Certificate  of   Incorporation  or  participate  in  any
reorganization, transfer of assets, consolidation, merger, dissolution, issue or
sale of securities or any other voluntary action, for the purpose of avoiding or
seeking  to  avoid  the  observance  or  performance  of any of the  terms to be
observed or  performed  hereunder by the  Corporation,  but will at all times in
good faith assist in carrying out all such action as may be reasonably necessary
or appropriate  in order to protect the conversion  rights of the holders of the
Class A Preferred Stock against impairment.

                  10.  Restrictions  and  Limitations.  So long as any shares of
Class A Preferred Stock remain outstanding, the Corporation shall not, and shall
not permit any Subsidiary to, without the vote or written consent by the holders
of a Majority of the Class A Preferred Stock:

                  (a) Redeem, purchase or otherwise acquire for value, any share
or shares of Class A Preferred Stock, otherwise than by redemption in accordance
with Section 7 hereof,  or any warrant,  option or right to purchase any Class A
Preferred Stock;

                  (b)  Declare  or pay any  dividends  on or declare or make any
other distribution,  direct or indirect (other than a dividend payable solely in
shares of Common Stock), on account of the Junior Stock or set apart any sum for
any such purpose;

                  (c) Increase  (other than by  redemption  or  conversion)  the
total number of authorized shares of Class A Preferred Stock; or

                  (d) Take any action  which  would  result in  taxation  of the
holders of Class A Preferred  Stock under  Section 305 of the  Internal  Revenue
Code of 1986 (or any comparable  provision of the Internal  Revenue Code of 1986
as hereafter from time to time amended).

                  11. No  Reissuance  of Class A  Preferred  Stock.  No share or
shares of Class A  Preferred  Stock  acquired  by the  Corporation  by reason of
redemption, purchase, conversion or otherwise shall be reissued.




                                      -20-







                  Section  12.   Outstanding   Shares.   For  purposes  of  this
Certificate  of  Designations,  all shares of Class A  Preferred  Stock shall be
deemed outstanding except (i) from the date, or the deemed date, of surrender of
certificates evidencing shares of Class A Preferred Stock, all shares of Class A
Preferred Stock converted into Common Stock,  (ii) from the date of registration
of  transfer,  all  shares  of Class A  Preferred  Stock  held of  record by the
Corporation or any subsidiary of the Corporation and (iii) any and all shares of
Class A  Preferred  Stock held in escrow  prior to delivery of such stock by the
Corporation to the initial beneficial owners thereof.

                  Section  13.  Status  of  Acquired  Shares.  Shares of Class A
Preferred  Stock  received  upon  conversion  pursuant to Section 9 or otherwise
acquired by the  Corporation  will be restored to the status of  authorized  but
unissued shares of Preferred  Stock,  without  designation as to class,  and may
thereafter be issued, but not as shares of Class A Preferred Stock.

                  Section 14. Preemptive  Rights. The Class A Preferred Stock is
not  entitled  to any  preemptive  or  subscription  rights  in  respect  of any
securities of the Corporation.

                  Section 15.  Severability  of Provisions.  Whenever  possible,
each  provision  hereof shall be  interpreted in a manner as to be effective and
valid under applicable law, but if any provision hereof is held to be prohibited
by or invalid under  applicable law, such provision shall be ineffective only to
the extent of such prohibition or invalidity,  without invalidating or otherwise
adversely  affecting the remaining  provisions  hereof.  If a court of competent
jurisdiction  should  determine  that a  provision  hereof  would  be  valid  or
enforceable  if a period of time were  extended  or  shortened  or a  particular
percentage were increased or decreased,  then such court may make such change as
shall be necessary to render the provision in question effective and valid under
applicable law.



                                      -21-







                          CERTIFICATE OF DESIGNATION OF
                       CLASS B CONVERTIBLE PREFERRED STOCK

                                       OF

                           VION PHARMACEUTICALS, INC.

It is hereby certified that:

         1. The name of the Company  (hereinafter  called the "Company") is Vion
Pharmaceuticals, Inc., a Delaware corporation.

         2. The  certificate  of  incorporation  of the Company  authorizes  the
issuance of Five million  (5,000,000)  shares of preferred stock, $.01 par value
per share,  and  expressly  vests in the Board of  Directors  of the Company the
authority provided therein to issue any or all of said shares in one (1) or more
series and by resolution or resolutions to establish the  designation and number
and to fix the relative rights and preferences of each series to be issued.

         3. The Board of  Directors of the  Company,  pursuant to the  authority
expressly  vested in it as  aforesaid,  has  adopted the  following  resolutions
creating a Class B issue of Preferred Stock:

         RESOLVED,  that five thousand  (5,000) of the five million  (5,000,000)
authorized  shares of Preferred Stock of the Company shall be designated Class B
Convertible  Preferred  Stock,  $.01 par value per share,  and shall possess the
rights and preferences set forth below:

         Section 1. Designation and Amount. The shares of such series shall have
a par value of $.01 per share and  shall be  designated  as Class B  Convertible
Preferred  Stock  (the  "Class B  Preferred  Stock")  and the  number  of shares
constituting  the Class B Preferred  Stock shall be five thousand  (5,000).  The
Class B  Preferred  Stock shall be offered at a purchase  price of One  Thousand
Dollars  ($1,000) per share (the "Original Class B Issue Price"),  with an eight
percent (8%) per annum accretion rate as set forth herein.

         Section 2. Rank. The Class B Preferred  Stock shall rank: (i) junior to
any other  class or series of capital  stock of the  Company  hereafter  created
specifically  ranking  by its  terms  senior  to the  Class  B  Preferred  Stock
(collectively,  the  "Senior  Securities");  (ii) prior to all of the  Company's
Common  Stock,  $.01 par value per share  ("Common  Stock");  (iii) prior to any
class  or  series  of  capital  stock  of  the  Company  hereafter  created  not
specifically  ranking  by its  terms  senior  to or on  parity  with any Class B
Preferred Stock of whatever  subdivision  (collectively,  with the Common Stock,
"Junior  Securities");  and (iv) on parity with the Company's  Class A Preferred
Stock and any class or series of capital stock of the Company  hereafter created
specifically  ranking by its terms on parity  with the Class B  Preferred  Stock
("Parity   Securities")  in  each  case  as  to  distributions  of  assets  upon
liquidation,  dissolution  or winding up of the  Company,  whether  voluntary or
involuntary   (all  such   distributions   being  referred  to  collectively  as
"Distributions").



                                      -22-







         Section 3.  Dividends.  The Class B  Preferred  Stock will bear no cash
dividends,  and the holders of the Class B Preferred Stock ("Holders") shall not
be entitled to receive cash dividends on the Class B Preferred  Stock. The Class
B Preferred Stock shall bear Special Dividends,  if applicable,  upon conversion
in accordance with the terms of Section 5 herein below.

         Section 4.   Liquidation Preference.

                  (a) In the event of any liquidation, dissolution or winding up
of the Company ("Liquidation Event"), either voluntary or involuntary,  the then
Holders of shares of Class B  Preferred  Stock  shall be  entitled  to  receive,
immediately  after  any  distributions  to  Senior  Securities  required  by the
Company's  Certificate of Incorporation  or any certificate of designation,  and
prior in preference to any distribution to Junior  Securities but in parity with
any distribution to Parity  Securities,  an amount per share equal to the sum of
(i) the  Original  Class B Issue  Price  for each  outstanding  share of Class B
Preferred  Stock and (ii) an amount equal to eight  percent (8%) of the Original
Class B Issue Price,  per annum,  accruing daily, for the period that has passed
since the date of the  Closing  (as  defined in the  Regulation  D  Subscription
Agreement  by and between the Holders and the Company  dated on or about  August
20, 1997) (the  "Closing")  of the purchase of such  Holder's  shares of Class B
Preferred  Stock from the Company  (such amount being  referred to herein as the
"Premium").  If upon the occurrence of such event,  and after payment in full of
the preferential  amounts with respect to the Senior Securities,  the assets and
funds  available  to be  distributed  among the Holders of the Class B Preferred
Stock and Parity  Securities shall be insufficient to permit the payment to such
Holders  of the full  preferential  amounts  due to the  Holders  of the Class B
Preferred Stock and the Parity Securities,  respectively, then the entire assets
and funds of the Company legally available for distribution shall be distributed
among the Holders of the Class B Preferred Stock and the Parity Securities,  pro
rata, based on the respective  liquidation  amounts to which each such series of
stock  is  entitled  by the  Company's  Certificate  of  Incorporation  and  any
certificate(s) of designation relating thereto.

                  (b)  Upon  the  completion  of the  distribution  required  by
subsection  4(a), if assets remain in the Company,  they shall be distributed to
holders of Junior  Securities in accordance  with the Company's  Certificate  of
Incorporation including any duly adopted certificate(s) of designation.

                  (c) At each Holder's option, a sale, conveyance or disposition
of all or substantially  all of the assets of the Company or the effectuation by
the Company of a  transaction  or series of related  transactions  in which more
than fifty percent (50%) of the voting power of the Company is disposed of shall
be deemed to be a Liquidation Event as defined in Section 4(a); provided further
that (i) a consolidation,  merger, acquisition, or other business combination of
the Company with or into any other  publicly  traded company or companies (or in
which the Company is the surviving entity and remains a publicly traded Company)
shall not be treated  as a  Liquidation  Event as  defined  in Section  4(a) but
instead  shall  be  treated  pursuant  to  Section  5(d)  hereof,   and  (ii)  a
consolidation, merger, acquisition, or other business combination of the Company
with or into any other non-publicly traded company or companies shall be treated
as a 










Liquidation  Event as defined in Section 4(a).  The Company shall not effect any
transaction  described in this subsection 4(c) unless it first gives thirty (30)
days prior  notice of such  transaction  (during  which time the Holder shall be
entitled  to  immediately  convert any or all of its shares of Class B Preferred
Stock into Common Stock  ("Conversion  Shares") and Special  Dividend  Stock (as
defined below),  notwithstanding  the Special Dividend Quota (as defined below);
provided however, that, for purposes of calculating the Conversion Trading Price
(as defined in Section  5(a)) with respect to  conversions  occurring  after the
Company gives such notice, "X" shall equal eighty percent (80%)).

                  (d) In the event that,  immediately  prior to the closing of a
transaction  described  in Section  4(c) which would  constitute  a  Liquidation
Event,  the cash  distributions  required by Section  4(a) or Section 6 have not
been made,  the Company  shall  either:  (i) cause such  closing to be postponed
until such cash  distributions  have been made, or (ii) cancel such transaction,
in which event the rights of the Holders of Class B Preferred Stock shall be the
same as existing immediately prior to such proposed transaction.

         Section 5.  Conversion.  The record Holder(s) of this Class B Preferred
Stock shall have conversion rights as follows (the "Conversion Rights"):

                  (a) Right to  Convert.  The  record  Holder(s)  of the Class B
Preferred Stock shall be entitled to convert,  subject to the Company's right of
Redemption Upon Receipt of Notice of Conversion set forth in Section 6(a) herein
below, any or all the shares of the Class B Preferred Stock on or after the Last
Closing Date at any time and from time to time, as defined below,  at the office
of the  Company  into that number of  fully-paid  and  non-assessable  shares of
Common  Stock   calculated  in  accordance  with  the  following   formula  (the
"Conversion Rate"):

         Number of shares of Common  Stock  issued  upon  conversion  of one (1)
share of Class B Preferred Stock =


                           [(.08)(N/365)(1,000)]+1,000
                           ---------------------------
                             Fixed Conversion Price


         where,

         o N= the number of days between (i) the date of the Closing of the sale
         of the shares of Class B Preferred Stock for which  conversion is being
         elected,  and (ii) the  applicable  Date of  Conversion  (as defined in
         Section  5(b)(iv)  below) for the shares of Class B Preferred Stock for
         which conversion is being elected,

         o Fixed  Conversion  Price = 100% of the average  Closing Bid Price, as
         defined  below,  for the thirty  (30)  trading  days ending on the Last
         Closing Date, which is $4.065,

         o"Last  Closing  Date"  shall  mean the date of the last  Closing  of a
         purchase and sale of the Class B Preferred  Stock that occurs  pursuant
         to the offering of the Class B Preferred 







         Stock by the Company, 

         and

         o "Closing Bid Price" shall mean the closing bid price of the Company's
         Common Stock on the Nasdaq Small Cap Market,  or if no longer traded on
         the Nasdaq  Small Cap Market,  the  closing bid price on the  principal
         national  securities exchange or the  over-the-counter  market on which
         the  Common  Stock is so traded and if not  available,  the mean of the
         high and low prices on the principal  national  securities  exchange or
         the National Market System on which the Common Stock is so traded.

         In the event  that on any Date of  Conversion  (as  defined  in Section
5(b)(iv)  below),  the Conversion  Trading Price (as defined below) is less than
the Fixed  Conversion Price (each a "Special  Dividend Date"),  then the Company
shall pay to the Holder consummating a conversion of Class B Convertible Stock a
special dividend ("Special Dividend") of a number of shares of Class C Preferred
Stock ("Special Dividend Stock") equal to (the "Special Dividend Rate"):

             [A/B  - 1] x  C;
where,

           A = the Fixed Conversion Price
           B = the Conversion Trading Price,
           C = the number of shares of Class B Preferred Stock converted, and
            "Conversion  Trading  Price" shall mean X% multiplied by the average
         Closing  Bid Price,  as that term is defined  above,  of the  Company's
         Common Stock for the ten (10) trading days  immediately  preceding  the
         Date of Conversion, as defined below, where X is determined as follows:


                    No. Months Between Last
              Closing Date and Date of Conversion                  "X"
              -----------------------------------                  ---

              4 months - 6 months                                  90%
              6 months and 1 day - 9 months                        85%
              more than 9 months                                   80%

The Class C Preferred Stock shall be convertible at the Fixed  Conversion  Price
(either  simultaneously  with the  shares  of  Class B  Convertible  Stock,  the
conversion  of which  caused the  issuance of such Class C Preferred  Stock,  or
thereafter) and shall not be entitled to Special Dividends.

Notwithstanding  the above,  unless otherwise indicated herein, the Holder shall
not receive a Special Dividend with respect to shares of Class B Preferred Stock
to the extent that an amount of Class B Preferred Stock in excess of the Special
Dividend Quota (as defined below) has been  previously  converted in conversions
resulting  in the  issuance  of Special  Dividends.  For  purposes  hereof,  the
"Special  Dividend Quota" is the maximum  aggregate  amount of Class B Preferred









Stock which will receive Special Dividends upon conversion through a given date,
stated  as a  percentage  of the  aggregate  principal  amount  of the  Class  B
Preferred Stock issued to such Holder, as follows:

               No. Months Between Last                    Aggregate "Special
         Closing Date and Date of Conversion                Dividend Quota"
         -----------------------------------                ---------------

             Last Closing Date - 4 months                          0%
             4 months and 1 day - 5 months                        15%
             5 months and 1 day - 6 months                        30%
             6 months and 1 day - 7 months                        45%
             7 months and 1 day - 8 months                        60%
             8 months and 1 day - 9 months                        75%
             9 months and 1 day - 10 months                       90%
             10 months and 1 day +                               100%


Conversions  that do not result in the  issuance  of Special  Dividends  are not
counted toward the Special Dividend Quota.  Notwithstanding the Special Dividend
Quota,  a Holder is entitled to convert up to one hundred  percent (100%) of the
Class B Preferred Stock, or any portion thereof,  into Common Stock any time (i)
on or after the Last Closing Date,  although the amount converted (to the extent
that such aggregate amounts  converted  receive Special  Dividends) in excess of
the Special Dividend Quota shall not be entitled to Special  Dividends,  or (ii)
after any voluntary or  involuntary  bankruptcy  or similar  filing is commenced
with respect to the Company,  or any appointment of a receiver or custodian with
respect to the  Company or (iii) any merger or  consolidation  of the Company or
any sale of all or  substantially  all of the Company's  assets or any change of
majority voting control of the Company in one or any series of transactions.

         For  purposes  hereof,  any  Holder  which  acquires  shares of Class B
Preferred  Stock from another  Holder (the  "Transferor")  and not upon original
issuance from the Company shall be entitled to exercise its conversion  right as
to the  percentages of such shares  specified under Section 5(a) in such amounts
and at such times such that the number of shares eligible for Special  Dividends
upon  conversion  by such Holder at any time shall be in the same  proportion to
the Special  Dividend Quota that the number of shares of Class B Preferred Stock
acquired by such Holder from its Transferor  bears to the total number of shares
of Class B Preferred Stock  originally  issued by the Company to such Transferor
(or its predecessor Transferor).

                  (b)  Mechanics  of  Conversion.  In order to  convert  Class B
Preferred Stock into full shares of Common Stock,  the Holder shall (i) send via
facsimile, on or prior to 11:59 p.m., New York City time (the "Conversion Notice
Deadline") on the Date of  Conversion,  a copy of the fully  executed  notice of
conversion  ("Notice of Conversion") to the Company at the office of the Company
stating that the Holder  elects to convert,  which notice shall specify the Date
of  Conversion,  the  number of shares of Class B  Preferred  Stock and  Special
Dividend Stock (if any) to be converted, the applicable Conversion Trading Price
and a calculation  of the number of shares of Common Stock and Special  Dividend
Stock (if any) issuable upon










such conversions  (together with a copy of the front page of each certificate to
be converted)  and (ii) surrender to a common courier for delivery to the office
of the Company,  the original  certificates  representing  the Class B Preferred
Stock being converted (the "Preferred  Stock  Certificates"),  duly endorsed for
transfer;  provided,  however,  that the Company shall not be obligated to issue
certificates  evidencing  the shares of Common Stock and Special  Dividend Stock
(if applicable)  issuable upon such conversion unless either the Preferred Stock
Certificates  are  delivered  to the  Company as provided  above,  or the Holder
notifies the Company that such  certificates have been lost, stolen or destroyed
(subject to the requirements of subparagraph (i) below).  Unless otherwise noted
in writing by the Holder,  any Notice of Conversion  tendered to the Company for
conversion of Class B Preferred  Stock shall be deemed to be a validly  tendered
Notice of Conversion  for  conversion  of the Class C Preferred  Stock issued or
issuable upon  conversion of such Class B Preferred  Stock.  Upon receipt by the
Company  of a  facsimile  copy of a Notice  of  Conversion,  the  Company  shall
immediately  send,  via facsimile,  a  confirmation  of receipt of the Notice of
Conversion to Holder which shall specify that the Notice of Conversion  has been
received and the name and  telephone  number of a contact  person at the Company
whom the Holder should contact regarding  information related to the Conversion.
In the case of a dispute as to the  calculation  of the  Conversion  Rate or the
Special Dividend Rate (if applicable), the Company shall, within the time period
required under Section 5(b)(ii) below,  issue to the Holder the number of Shares
that are not disputed and shall submit the disputed  calculations to its outside
accountant via facsimile  within three (3) days of receipt of Holder's Notice of
Conversion.  The Company shall cause the accountant to perform the  calculations
and notify the Company and Holder of the results no later than two business days
from the time it receives the disputed  calculations.  Accountant's  calculation
shall be deemed conclusive absent manifest error.

                           (i) Lost or Stolen Certificates.  Upon receipt by the
Company  of  evidence  of the loss,  theft,  destruction  or  mutilation  of any
Preferred Stock Certificates representing shares of Class B Preferred Stock, and
(in the case of loss, theft or destruction) of indemnity or security  reasonably
satisfactory  to  the  Company,  and  upon  surrender  and  cancellation  of the
Preferred  Stock  Certificate(s),  if  mutilated,  the Company shall execute and
deliver new Preferred Stock  Certificate(s) of like tenor and date. However, the
Company shall not be obligated to re-issue such lost or stolen  Preferred  Stock
Certificates  if Holder  contemporaneously  requests the Company to convert such
Class B Preferred Stock into Common Stock.

                           (ii)  Delivery of Common Stock Upon  Conversion.  The
Company shall,  no later than the close of business on the second (2nd) business
day (the  "Deadline")  after  receipt by the  Company of a  facsimile  copy of a
Notice of Conversion and receipt by Company of all necessary  documentation duly
executed and in proper form  required  for  conversion,  including  the original
Preferred Stock Certificates to be converted (or after provision for security or
indemnification  in the case of lost or destroyed  certificates,  if  required),
and/or  shall  cause the  transfer  agent for its Common  Stock  (the  "Transfer
Agent") to issue and surrender to a common  courier for either  overnight or (if
delivery is outside the United States) two (2) day delivery to the Holder at the
address of the Holder as shown on the stock records of the Company a certificate
for the number of shares of Common  Stock and the Company  shall  issue  Special
Dividend Stock (if any) to which the Holder shall be entitled as aforesaid.









                           (iii) No Fractional  Shares. If any conversion of the
Class B Preferred  Stock would  create a  fractional  share of Common Stock or a
right to acquire a fractional share of Common Stock, such fractional share shall
be  disregarded  and  the  number  of  shares  of  Common  Stock  issuable  upon
conversion, in the aggregate, shall be the next higher number of shares.

                           (iv) Date of Conversion. The date on which conversion
occurs  (the "Date of  Conversion")  shall be deemed to be the date set forth in
such Notice of  Conversion,  provided (i) that the advance copy of the Notice of
Conversion is sent via facsimile to the Company before 11:59 p.m., New York City
time,  on the Date of  Conversion,  and (ii) that the original  Preferred  Stock
Certificates  representing the shares of Class B Preferred Stock to be converted
are  surrendered by depositing  such  certificates  with a common  courier,  for
delivery to the Company as provided above, as soon as practicable after the Date
of  Conversion.  The person or persons  entitled to receive the shares of Common
Stock  issuable  upon such  conversion  shall be treated for all purposes as the
record  Holder  or  Holders  of such  shares  of  Common  Stock  on the  Date of
Conversion.

                  (c) Automatic Conversion or Redemption.  Each share of Class B
Preferred  Stock  outstanding  on the date which is two (2) years after the Last
Closing  Date or, if not a  business  day,  the first  business  day  thereafter
("Termination Date")  automatically shall, at the option of the Company,  either
(i)  provided  that there has been no uncured  Event of  Default,  be  converted
("Automatic  Conversion")  into Common Stock on such date at the Conversion Rate
then in effect  (calculated  in  accordance  with the  formula in  Section  5(a)
above),  and shall  receive a Special  Dividend  (if any) based upon the Special
Dividend  Rate then in  effect,  which  Special  Dividend  Stock  shall  also be
simultaneously  converted into Common Stock, where the Termination Date shall be
deemed the Date of Conversion  with respect to such  conversion  for purposes of
this Certificate of Designation; or (ii) be redeemed ("Automatic Redemption") by
the  Company  for cash in an amount  equal to the 125% times the Total Value (as
defined in Section 6(a)(i) below) of the shares of Class B Preferred Stock being
redeemed.  If the Company elects to redeem,  on the Termination  Date under this
subsection,  the  Company  shall  send to the  Holders  of  outstanding  Class B
Preferred Stock notice (the "Automatic  Redemption Notice"),  via facsimile,  no
later than the business day  preceding  the  Termination  Date, of its intent to
effect an Automatic Redemption of the outstanding Class B Preferred Stock on the
Termination  Date.  If the  Company  does not send such notice to Holder by such
date, an Automatic Conversion shall be deemed to have occurred.  If an Automatic
Conversion  occurs,  the  Company and the Holders  shall  follow the  applicable
conversion  procedures set forth in this  Certificate of Designation;  provided,
however,  that the  Holders are not  required  to send the Notice of  Conversion
contemplated  by  Section  5(b).  If the  Company  elects to redeem  under  this
subsection,  each Holder of Class B Preferred Stock which has not been converted
and remains outstanding as of the Termination Date shall send their certificates
representing the Class B Preferred Stock to the Company within five (5) business
days  of the  Termination  Date,  and  the  Company  shall  pay  the  applicable
redemption  price to each respective  Holder within five (5) days of the receipt
of such  certificates.  The  Company  shall  not be  obligated  to  deliver  the
redemption  price  unless the  certificates  representing  the Class B Preferred
Stock are  delivered to the Company,  or, in the event one or more  certificates
have been lost, stolen,  mutilated or destroyed,  unless the Holder has complied
with Section  5(b)(i).  If the Company  elects to redeem under this Section 5(c)
and










the  Company  fails to pay the  Holders  the  redemption  price  within five (5)
business  days of its  receipt of the  certificates  representing  the shares of
Class B Preferred Stock to be redeemed as required by this Section 5(c), then an
Automatic  Conversion  shall be deemed to have occurred and, upon receipt of the
Preferred  Stock  certificates,  the Company  shall  immediately  deliver to the
Holders the  certificates  representing the number of shares of Common Stock and
Special  Dividend  Stock (if any) to which the Holders  would have been entitled
upon Automatic  Conversion of the Class B Preferred  Stock,  where the number of
shares of  Special  Dividend  Stock  issuable  is  calculated  using the  lowest
Conversion  Trading  Price (as defined in Section 5 hereof) in effect during the
period  beginning on the Termination  Date and ending on the date the Company or
its Transfer  Agent  issues  Common  Stock and Special  Dividend  Stock (if any)
pursuant to this Section  5(c).  Nothing in this Section 5(c) shall be construed
to limit Holder's ability to pursue Holder's rights under Section 13 hereof.  At
each Holder's  option,  upon written notice from the investor no later than five
(5) business days prior to the original  Termination  Date, the Termination Date
shall  be  delayed  for the  aggregate  number  of days  during  which  there is
continuing one or more Events of Default or a Conversion  Failure anytime during
the term of the Class B Preferred Stock.

                  (d)      Adjustment to Conversion Rate.

                           (i) Adjustment to Fixed Conversion Price Due to Stock
Split,  Stock  Dividend,  Etc. If, prior to the conversion of all of the Class B
Preferred Stock,  the number of outstanding  shares of Common Stock is increased
by a stock split,  stock dividend,  or other similar event, the Fixed Conversion
Price shall be proportionately  reduced,  or if the number of outstanding shares
of Common Stock is decreased by a combination or  reclassification of shares, or
other  similar  event,  the  Fixed  Conversion  Price  shall be  proportionately
increased.

                           (ii) Adjustment to Conversion  Trading Price.  If, at
any  time  when any  shares  of the  Class B  Preferred  Stock  are  issued  and
outstanding,  the number of  outstanding  shares of Common Stock is increased or
decreased by a stock split, stock dividend,  or other similar event, which event
shall have taken place  during the  reference  period for  determination  of the
Conversion Trading Price for any conversion of the Class B Preferred Stock, then
the Conversion  Trading Price shall be calculated giving  appropriate  effect to
the stock split, stock dividend, combination,  reclassification or other similar
event  for  all  ten  (10)  trading  days  immediately  preceding  the  Date  of
Conversion.

                           (iii) Adjustments.

                                    (A) Adjustment Due to Merger, Consolidation,
Etc. If, prior to the conversion of all Class B Preferred Stock,  there shall be
any merger, consolidation, exchange of shares, recapitalization, reorganization,
or other  similar  event,  as a result of which  shares  of Common  Stock of the
Company shall be changed into (or the shares of Common Stock become  entitled to
receive) the same or a different  number of shares of the same or another  class
or classes of stock or securities of the Company or another entity or there is a
sale of all or  substantially  all the Company's  assets or there is a change of
control  transaction  not deemed to be a  liquidation  pursuant to Section 4(c),
then the Holders of Class B Preferred  Stock shall  thereafter have the right to
receive upon conversion of Class B Preferred Stock,  upon the basis










and upon the terms and conditions  specified herein and in lieu of the shares of
Common Stock  immediately  theretofore  issuable  upon  conversion,  such stock,
securities  and/or other  assets  which the Holder  would have been  entitled to
receive in such  transaction  had the Class B  Preferred  Stock  been  converted
immediately  prior  to  such  transaction,  and in  any  such  case  appropriate
provisions shall be made with respect to the rights and interests of the Holders
of the Class B Preferred Stock to the end that the provisions hereof (including,
without  limitation,  provisions for the  adjustment of the  Conversion  Trading
Price and of the  number  of  shares  issuable  upon  conversion  of the Class B
Preferred Stock) shall thereafter be applicable, as nearly as may be practicable
in relation to any securities  thereafter  deliverable upon the exercise hereof.
The  Company  shall not  effect any  transaction  described  in this  subsection
5(d)(iii)  unless (a) it first gives at least  thirty (30) days prior  notice of
such   merger,    consolidation,    exchange   of   shares,    recapitalization,
reorganization,  or other  similar  event (during which time the Holder shall be
entitled to convert its shares of Class B Preferred  Stock into Common Stock and
Special Dividend Stock (notwithstanding the Special Dividend Quota), and (b) the
resulting  successor or acquiring entity (if not the Company) assumes by written
instrument the obligations of the Company under this  Certificate of Designation
including this subsection 5(d)(iii).

                                    (B)  Adjustment Due to  Distribution.  If at
any time after the Last  Closing  Date,  the Company  shall  declare or make any
distribution  of its  assets (or  rights to  acquire  its  assets) to Holders of
Common Stock as a partial liquidating  dividend,  by way of return of capital or
otherwise (including any dividend or distribution to the Company's  shareholders
in cash or shares (or rights to  acquire  shares) of capital  stock of any other
public or private company, including but not limited to a subsidiary or spin-off
of the Company (a  "Distribution"),  then the Holders of Class B Preferred Stock
shall be entitled,  upon any conversion of shares of Class B Preferred  Stock or
conversion  of  Special  Dividend  Stock  (if any)  issuable  upon a  subsequent
conversion of Class B Preferred Stock, in each case after the date of record for
determining shareholders entitled to such Distribution, to receive the amount of
such  assets  which would have been  payable to the Holder  with  respect to the
shares of Common Stock issuable upon such  conversion of Class B Preferred Stock
and upon  conversion  of Special  Dividend  Stock (if any),  issuable  upon such
conversion of Class B Preferred  Stock,  had such Holder been the holder of such
shares of Common  Stock on the record  date for  determination  of  shareholders
entitled to such Distribution.

                           (iv)  (A)   Adjustment  Due  to  Issuances  of  Other
Securities. If at any time or from time to time after the Last Closing Date, the
Company shall issue or sell Common Stock or rights,  options,  warrants or other
securities  convertible  into Common Stock  (excluding  those  rights,  options,
warrants or other securities  convertible into no more than 18,000,000 shares of
Common  Stock  outstanding  as of the  Last  Closing  Date  or  underlying  such
securities  and future  ordinary 5% annual  dividends on its Class A Convertible
Preferred  Stock),  at a price per share which is lower than the then  effective
Fixed Conversion  Price,  then the Conversion Rate and the Special Dividend Rate
shall each be increased by multiplying the Conversion Rate and Special  Dividend
Rate  theretofore in effect by a fraction,  of which the numerator  shall be the
number of shares of Common Stock  outstanding  immediately prior to the issuance
of such shares,  rights,  options,  warrants or convertible  securities plus the
number  of  additional  shares of  Common  Stock  offered  for  subscription  or
purchase,  and of which the denominator  shall be the number of shares of Common
Stock  outstanding  immediately  prior to the issuance of such rights,










options,  warrants or convertible securities plus the number of shares which the
aggregate offering price of the total number of shares offered would purchase at
the then effective  Fixed  Conversion  Price,  provided,  however,  that no such
adjustment  shall be made which results in a decrease in the Conversion  Rate or
Special  Dividend  Rate.  Such  adjustment  shall be made  whenever such rights,
options,  warrants  or  convertible  securities  are  issued,  and shall  become
effective  immediately and retroactive to the record date for the  determination
of  stockholders  entitled  to  receive  such  rights,   options,   warrants  or
convertible  securities.  Notwithstanding  the foregoing,  no adjustment will be
required  on  account  of (i)  the  exercise  of any  of the  options  presently
outstanding under the Company's Amended and Restated 1993 Stock Option Plan (the
"Plan") for officers,  directors and certain other key personnel of the Company,
or (ii) the issuance or exercise of any other  securities which may hereafter be
granted or exercised under the Plan or under any other employee  benefit plan of
the  Company,  but only to the extent that all shares of Common  Stock issued or
issuable  pursuant to such plan or plans do not exceed 4,000,000 shares, as such
number may be appropriately adjusted for dilutive events; or (iii) shares issued
in an underwritten public offering.

                                    (B)    Adjustment   Due   to   Expired   and
Unexercised Convertible Securities.  If, in any case, the total number of shares
of Common Stock  issuable upon  exercise,  conversion or exchange of any rights,
options,   warrants  or  convertible  securities   (collectively,   "Convertible
Securities")  is not,  in fact,  issued and the rights to  exercise,  convert or
exchange  such  Convertible  Securities  shall have expired or  terminated,  the
Conversion  Rate and Special  Dividend Rate then in effect will be readjusted to
the Conversion Rate and Special Dividend Rate which would have been in effect at
the time of such expiration or termination had such Convertible  Securities,  to
the extent  outstanding  immediately  prior to such  expiration  or  termination
(other  than in respect of the actual  number of shares of Common  Stock  issued
upon exercise or conversion thereof), never been issued.

                           (v) No Fractional  Shares.  If any  adjustment  under
this Section 5(d) would create a fractional  share of Common Stock or a right to
acquire a  fractional  share of Common  Stock,  such  fractional  share shall be
disregarded  and the number of shares of Common Stock  issuable upon  conversion
shall be the next higher number of shares.

                  (e) No Five Percent Holders.  Notwithstanding  anything to the
contrary  contained herein, the Class B Preferred Stock shall not be convertible
by a Holder or at the  Termination  Date to the extent  (but only to the extent)
that, if converted by such Holder or at the  Termination  Date, the Holder would
beneficially  own in  excess  of 4.9% of the then  outstanding  shares of Common
Stock of the  Company  (the "4.9%  Limitation"),  provided,  however,  that such
limitation  shall  not  apply to  conversions  tendered  in  anticipation  of or
following a merger,  acquisition,  or other business  combination  involving the
Company or pursuant to bankruptcy or insolvency proceedings.  To the extent this
limitation  applies,  the determination of whether Class B Preferred Stock shall
be convertible  (vis-a vis other  securities  owned by such Holder) and of which
Class B Preferred  Stock shall be converted  shall be in the sole  discretion of
the Holder and submission of the Class B Preferred Stock for conversion shall be
deemed to be the Holder's  determination of whether such Class B Preferred Stock
is  convertible,  subject  to such  aggregate  percentage  limitations.  For the
purposes  of this  subparagraph,  beneficial  ownership  and  all  calculations,
including  without  limitation,  with  respect  to  calculations  of  percentage
ownership










shall be determined in accordance with Section 13(d) of the Securities  Exchange
Act of 1934, as amended,  and the Regulations  thereunder.  Notwithstanding  the
foregoing,  each  Holder  shall  have the  right to waive  such  restriction  or
increase such  percentage  upon sixty one (61) days' prior notice to the Company
and to decrease  any such  percentage  immediately  upon  written  notice to the
Company.  No  transferee  of  Class B  Preferred  Stock  shall  be bound by such
restriction unless the transferee expressly so agrees.

         Section 6.        Redemption by Company.

                  (a)  Company's  Right to  Redeem  Upon  Receipt  of  Notice of
Conversion.  If the  Conversion  Trading Price of the Company's  Common Stock is
less than the Fixed  Conversion  Price (as defined in Section 5(a)), at the time
of receipt of a Notice of Conversion pursuant to Section 5(b), the Company shall
have the right, in its sole discretion,  to redeem in whole or in part any Class
B Preferred  Stock  submitted for conversion at the Redemption  Rate (as defined
below), immediately prior to and in lieu of conversion ("Redemption Upon Receipt
of Notice of Conversion"). If the Company elects to redeem some, but not all, of
the Class B Preferred Stock  submitted for conversion,  the Company shall redeem
from among the Class B Preferred Stock submitted by the various shareholders for
conversion on the  applicable  date, a pro-rata  amount from each such Holder so
submitting Class B Preferred Stock for conversion.

                           (i)  Redemption  Price  Upon  Receipt  of a Notice of
Conversion.  The redemption  rate of Class B Preferred  Stock under this Section
6(a) shall be calculated as follows ("Redemption Rate"):

                No. Months Between Last
             Closing and Date of Conversion        Redemption Rate
             ------------------------------        ---------------

             4 months - 6 months                   Total Value x 1.110
             6 months and 1 day - 9 months         Total Value x 1.176
             more than 9 months                    Total Value x 1.250

where,

         "Total  Value"  shall  mean the Stated  Value of the Class B  Preferred
Stock being redeemed, plus liquidated damages, Conversion Failure Payments, Late
Registration  Payments and any other cash payments then due from the Company and
then unpaid,  where "Stated  Value" shall mean the Original  Class B Issue Price
(as  defined in Section 1) of each share of Class B  Preferred  Stock,  together
with the accreted but unpaid Premium (as defined in Section 4(a)).


                           (ii)  Mechanics of Redemption  Upon Receipt of Notice
of Conversion. The Company shall effect each such redemption by giving notice of
its election to redeem,  by facsimile,  by 5:00 p.m. New York City time the next
business day following receipt of a Notice of Conversion from a Holder,  and the
Company shall provide a copy of such  redemption  notice by overnight or two (2)
day  courier,  to the  Holder  of the  Class B  Preferred  Stock  submitted  for
conversion at the address and facsimile  number of such Holder  appearing in the
Company's 











register for the Class B Preferred Stock.  Such redemption notice shall indicate
whether  the  Company  will  redeem all or part of the Class B  Preferred  Stock
submitted for conversion and the applicable redemption price.

                           (iii) Redemption  Buy-In.  If (i) on the same date as
or subsequent to the tender of a Notice of Conversion,  but prior to its receipt
of a Notice of Redemption Upon Notice of Conversion,  the Holder sells shares of
Common Stock which such Holder  anticipated  receiving upon such  conversion and
upon  conversion of the Special  Dividend Stock which Holder expected to receive
upon such  conversion  (collectively,  the "Redemption  Sold Shares"),  (ii) the
Company  effects a Redemption  Upon Receipt of Notice of Conversion with respect
to  such  conversion,  and  (iii)  the  Holder  purchases  (in  an  open  market
transaction),  no later than the close of trading on the trading  day  following
its receipt of the Notice of Redemption Upon Notice of Conversion (or as soon as
trading volume of the Common Stock reasonably  permits),  shares of Common Stock
to make  delivery  upon the sale of the  Redemption  Sold Shares (a  "Redemption
Buy-In"),  the  Company  shall pay such Holder (in  addition  to the  applicable
Redemption  Rate)  (within two (2) business  days  following  receipt of written
notice of a claim  pursuant to this Section  6(a)(iii))  the amount by which (x)
such Holder's total purchase price (including brokerage commission,  if any) for
the shares of Common Stock  purchased in the  Redemption  Buy-In exceeds (y) the
net  proceeds  received  by such  Holder  from the sale of the  Redemption  Sold
Shares. For example, if a Holder purchases shares of Common Stock having a total
purchase price of $11,000 to cover a Redemption Buy-In with respect to shares of
Common Stock sold for  $10,000,  the Company will be required to pay (within two
(2) business days  following  receipt of written  notice of a claim  pursuant to
this Section  6(a)(iii)) such Holder $1,000.  A Holder shall provide the Company
written  notification  (and  trading  records,  if  reasonably  requested by the
Company) indicating any amounts payable to Holder pursuant to this Section.

                  (b) Company's  Right to Redeem at its  Election.  At any time,
commencing  twelve  (12)  months  and one (1) day  after the Last  Closing  Date
provided  that such date shall be  extended  for each day during  which there is
continuing an Event of Default,  the Company  shall have the right,  in its sole
discretion,  to redeem ("Redemption at Company's Election"),  from time to time,
any or all of the Class B Preferred  Stock;  provided that (i) the Company shall
first  provide   thirty  (30)  days  advance   written  notice  as  provided  in
subparagraph 6(b)(ii) below (which can be given beginning thirty (30) days prior
to the date which is twelve (12)  months and one (1) day after the Last  Closing
Date),  and (ii) that the  Company  shall  only be  entitled  to redeem  Class B
Preferred  Stock having an aggregate  Total Value of at least Two Hundred  Fifty
Thousand Dollars ($250,000).  If the Company elects to redeem some, but not all,
of the Class B Preferred  Stock, the Company shall redeem a pro-rata amount from
each Holder of the Class B  Preferred  Stock and a  proportionate  amount of any
Class C Preferred Stock held by each such Holder.

                           (i)  Redemption  Price  At  Company's  Election.  The
"Redemption Price At Company's  Election" shall be calculated as a percentage of
Total  Value,  as that term is defined  below,  of the Class B  Preferred  Stock
redeemed pursuant to this Section 6(b), which percentage shall vary depending on
the date of Redemption at Company's  Election (as defined  below),  and shall be
determined as follows:









    Date of Notice of Redemption at Company's Election          % of Total Value
    --------------------------------------------------          ----------------

    12 months and 1 day to 18 months following Last Closing Date       130%
    18 months and 1 day to 24 months following Last Closing Date       125%


                           (ii)  Mechanics of Redemption at Company's  Election.
The Company  shall  effect each such  redemption  by giving at least thirty (30)
days prior written notice ("Notice of Redemption At Company's  Election") to the
Holders of the Class B Preferred Stock selected for  redemption,  at the address
and facsimile number of such Holder appearing in the Company's Class B Preferred
Stock register, which Notice of Redemption At Company's Election shall be deemed
to have been  delivered two (2) business  days after the  Company's  mailing (by
overnight or two (2) day courier,  with a copy by  facsimile)  of such Notice of
Redemption  At  Company's  Election.  Such  Notice of  Redemption  At  Company's
Election shall indicate (i) the number of shares of Class B Preferred Stock that
have been  selected for  redemption,  (ii) the date which such  redemption is to
become effective (the "Date of Redemption At Company's  Election") and (iii) the
applicable  Redemption  Price At Company's  Election,  as defined in  subsection
(b)(i) above.  Notwithstanding  the above,  Holder may convert into Common Stock
and Special Dividend Stock (notwithstanding the Special Dividend Quota) pursuant
to  Section  5,  prior to the close of  business  on the Date of  Redemption  at
Company's  Election,  any or all Class B Preferred  Stock which it is  otherwise
entitled to convert,  including  Class B Preferred  Stock that has been selected
for  redemption  at the Company's  election  pursuant to this  subsection  6(b);
provided,  however,  that the Company  shall  still be entitled to exercise  its
right, if applicable,  to redeem upon receipt of a Notice of Conversion pursuant
to Section 6(a).

                  (c) Company Must Have  Immediately  Available  Funds or Credit
Facilities.  The Company shall not be entitled to send any Redemption Notice and
begin the redemption procedure under Sections 6(a) and 6(b) unless it has:

                           (i) the full amount of the redemption  price in cash,
available  in a  demand  or other  immediately  available  account  in a bank or
similar financial institution; or

                           (ii) immediately available credit facilities,  in the
full  amount  of  the  redemption  price  with  a  bank  or  similar   financial
institution; or

                           (iii) an agreement with a standby underwriter willing
to purchase  from the Company a sufficient  number of shares of stock to provide
proceeds  necessary  to  redeem  any  stock  that  is  not  converted  prior  to
redemption; or

                           (iv) a  combination  of the  items  set forth in (i),
(ii) and (iii) above, aggregating the full amount of the redemption price.

         If the foregoing  conditions of this Section 6(c) are satisfied and the
Company complies with Section 6(d) hereof,  then any shares of Class B Preferred
Stock  called  for by a  Redemption  at  Company's  Election  shall  cease to be
outstanding  for all purposes  hereunder  (including  the











right to convert or to accrete additional Premium or to exercise any other right
or privilege  hereunder)  on the Date of  Redemption  at Company's  Election and
shall instead  represent the right to receive the Redemption  Price at Company's
Election  without  interest  from and after the Date of  Redemption at Company's
Election.

                  (d)      Payment of Redemption Price.

                           (i) Each  Holder  submitting  Preferred  Stock  being
redeemed  under  this  Section  6  shall  send  their  Class B  Preferred  Stock
Certificates  so  redeemed  to the  Company,  and  the  Company  shall  pay  the
applicable  redemption price to that Holder within five (5) business days of the
Date of Redemption at Company's Election.  The Company shall not be obligated to
deliver the redemption price unless the Preferred Stock Certificates so redeemed
are delivered to the Company, or, in the event one (1) or more certificates have
been lost, stolen,  mutilated or destroyed,  unless the Holder has complied with
Section 5(b)(i).

                           (ii) If the  Company  elects  to redeem  pursuant  to
Section 6(a) hereof,  and the Company fails to pay Holder the  redemption  price
within the time frame as required by this Section  6(d),  then the Company shall
issue shares of Common Stock and Special  Dividend  Stock to any such Holder who
has submitted a Notice of Conversion in compliance with Section 5(b) hereof. The
number of shares of Special  Dividend  Stock to be issued to Holder  pursuant to
this provision shall be determined using the lowest Conversion Trading Price (as
defined in Section 5 hereof) in effect  during the period  beginning on the date
Holder sends its Notice of Conversion to Company via facsimile and ending on the
date the Company or the  Transfer  Agent issues  Common  Stock  pursuant to this
Section  6(d)(ii).  Nothing in this  Section  6(d) shall be  construed  to limit
Holder's ability to pursue Holder's rights under Section 13 hereof.

                  (e)  Blackout  Period.   Notwithstanding  the  foregoing,  the
Company  may not  either  send out a  redemption  notice or effect a  redemption
pursuant to Section  6(b) above  during a Blackout  Period  (defined as a period
during which the Company's officers or directors would be prohibited from buying
or selling stock  pursuant to the  Securities  Exchange Act of 1934, as amended,
because of their holding of material non-public information), unless the Company
shall first publicly  disclose the non-public  information  that resulted in the
Blackout Period;  provided,  however, that no redemption shall be effected until
at least ten (10) days after the  Company  shall  have given the Holder  written
notice that the Blackout Period has been lifted.

         Section 7. Voting  Rights.  The Holders of the Class B Preferred  Stock
shall have no voting  power  whatsoever,  except as  otherwise  provided  by the
General Corporation Law of the State of Delaware ("Delaware Law"), and no Holder
of Class B Preferred Stock shall vote or otherwise participate in any proceeding
in which actions shall be taken by the Company or the shareholders thereof or be
entitled to notification as to any meeting of the shareholders.

         Notwithstanding  the above,  the  Company  shall  provide  Holder  with
notification  of any meeting of the  shareholders  regarding any major corporate
events  affecting  the  Company.  In the event of any taking by the Company of a
record of its shareholders  for the purpose of determining  shareholders who are
entitled to receive payment of any dividend or other distribution,  any right to
subscribe for, purchase or otherwise acquire any share of any class or











any other securities or property  (including by way of merger,  consolidation or
reorganization),  or  to  receive  any  other  right,  or  for  the  purpose  of
determining  shareholders  who  are  entitled  to vote in  connection  with  any
proposed sale, lease or conveyance of all or substantially  all of the assets of
the  Company,  or any  proposed  liquidation,  dissolution  or winding up of the
Company,  the Company  shall send (by  certified  mail or  overnight  courier) a
notice to Holder, in such form as given to the other shareholders,  at least ten
(10) days prior to the record date specified  therein,  of the date on which any
such record is to be taken for the purpose of such dividend, distribution, right
or other event, and a brief statement regarding the amount and character of such
dividend, distribution, right or other event to the extent known at such time.

         To the extent  that under  Delaware  Law the vote of the Holders of the
Class B Preferred Stock,  voting separately as a class, is required to authorize
a given action of the Company, the affirmative vote or consent of the Holders of
at  least  two  thirds  (2/3)  of the  shares  of the  Class B  Preferred  Stock
represented  at a duly held  meeting  at which a quorum is present or by written
consent  of a  majority  of the  shares of Class B  Preferred  Stock  (except as
otherwise may be required under  Delaware Law) shall  constitute the approval of
such action by the class,  subject to Section 8 below.  To the extent that under
Delaware Law the Holders of the Class B Preferred  Stock are entitled to vote on
a matter with holders of Common Stock,  voting  together as one (1) class,  each
share of Class B Preferred Stock shall be entitled to a number of votes equal to
the number of shares of Common Stock into which it is then convertible using the
record date for the taking of such vote of  stockholders as the date as of which
the  Conversion  Trading Price is  calculated.  Holders of the Class B Preferred
Stock also shall be  entitled to notice of all  shareholder  meetings or written
consents  with  respect to which they would be  entitled to vote,  which  notice
would be provided pursuant to the Company's by-laws and applicable statutes.

         Section 8. Protective Provision. So long as shares of Class B Preferred
Stock are  outstanding,  the  Company  shall not  without  first  obtaining  the
approval  (by vote or written  consent,  as  provided  by  Delaware  Law) of the
Holders of at least seventy-five percent (75%) of the then outstanding shares of
Class B Preferred  Stock,  and at least  seventy-five  percent (75%) of the then
outstanding Holders:

                  (a) alter or change the rights,  preferences  or privileges of
the Class B Preferred  Stock or any  securities  so as to affect  adversely  the
Class B Preferred Stock;

                  (b)  create  any  new  class  or  series  of  stock  having  a
preference  over or on parity with the Class B Preferred  Stock with  respect to
Distributions  (as  defined  in  Section  2 above) or  increase  the size of the
authorized number of Class B Preferred; or

                  (c) do any act or thing not authorized or contemplated by this
Designation which would result in taxation of the Holders of shares of the Class
B Preferred  Stock under  Section 305 of the Internal  Revenue Code of 1986,  as
amended (or any comparable  provision of the Internal  Revenue Code as hereafter
from time to time amended).

         In the event Holders of at least seventy-five percent (75%) of the then
outstanding shares of Class B Preferred Stock and at least seventy-five  percent
(75%) of the then  outstanding  Holders  agree to allow the  Company to alter or
change the rights,  preferences or privileges of










the shares of Class B Preferred  Stock,  pursuant to subsection (a) above, so as
to affect the Class B Preferred  Stock,  then the Company will deliver notice of
such approved  change to the Holders of the Class B Preferred Stock that did not
agree to such  alteration or change (the  "Dissenting  Holders") and  Dissenting
Holders  shall  have the  right for a period  of  thirty  (30)  days to  convert
pursuant to the terms of this  Certificate of Designation as they exist prior to
such  alteration  or change  (provided  that,  for purposes of  calculating  the
Conversion  Trading  Price,  as defined in Section 5(a),  "X" shall equal eighty
percent (80%), and provided further that the Special Dividend Quota set forth in
Section 5(a) hereof shall not apply),  or continue to hold their shares of Class
B Preferred Stock, as amended.

         Section 9.  Status of  Converted  or Redeemed  Stock.  In the event any
shares of Class B Preferred  Stock shall be  converted  or redeemed  pursuant to
Section 5 or Section 6 hereof,  the shares so  converted  or  redeemed  shall be
canceled,  shall return to the status of authorized but unissued Preferred Stock
of no  designated  series,  and shall not be  issuable by the Company as Class B
Preferred Stock.

         Section  10.  Preference  Rights.  Nothing  contained  herein  shall be
construed  to prevent the Board of Directors of the Company from issuing one (1)
or more series of Preferred Stock with dividend and/or  liquidation  preferences
junior to the  dividend  and  liquidation  preferences  of the Class B Preferred
Stock.

         Section 11.   Authorization and Reservation of Shares of Common Stock.

                  (a)  Authorized  and Reserved  Amount.  The Company shall have
authorized  and reserved and keep  available  for  issuance  three  million five
hundred  thousand  (3,500,000)  shares  of Common  Stock  (the  "Authorized  and
Reserved  Amount")  solely for the purpose of effecting  the  conversion  of the
Class B Preferred  Stock and  conversion of any Special  Dividend Stock issuable
upon  conversion  of the Class B  Preferred  Stock,  which  number  shall not be
reduced.  The Company shall at all times  reserve and keep  available out of its
authorized but unissued shares of Common Stock a sufficient  number of shares of
Common Stock to provide for (i) the full conversion of all  outstanding  Class B
Preferred  Stock and (ii) the full  conversion of all Special  Dividend Stock to
which  Holders would be entitled  upon the full  conversion  of all  outstanding
Class B Preferred Stock, and, in each case, the issuance of the shares of Common
Stock in connection therewith (collectively, the "Required Number of Shares").

                  (b)  Increases  to  Authorized  and Reserved  Amount.  Without
limiting any other  provision of this Section 11, if the Authorized and Reserved
Amount  for any ten (10)  consecutive  trading  days  (the last of such ten (10)
trading days being the  "Authorization  and Reservation  Trigger Date") shall be
less than one hundred twenty percent (120%) of the Required  Number of Shares on
such trading days (a "Share Authorization and Reservation Failure"), the Company
shall immediately notify all Holders of such occurrence and shall take action as
soon  as  practicable,  (including,  if  necessary,  commencing  action  to seek
shareholder  approval to authorize the issuance of  additional  shares of Common
Stock) to increase  the  Authorized  and  Reserved  Amount to one hundred  fifty
percent (150%) of the Required Number of Shares.

                  (c) Reduction of Authorized and Reserved  Amount Under Certain











Circumstances.  Prior to complete  conversion of all Class B Preferred Stock and
all Special  Dividend  Stock,  the Company shall not reduce the number of shares
required to be reserved for  issuance  under this Section 11 without the written
consent of all Holders except for a reduction  proportionate  to a reverse stock
split effected for a business  purpose other than  affecting the  obligations of
Company  under this Section 11, which  reverse stock split affects all shares of
Common Stock equally.

                  (d) [Intentionally Left Blank].

                  (e) Cap Amount.  If prohibited by applicable  Nasdaq rules, in
no event shall the total number of shares of Common Stock issued upon conversion
of the Class B Preferred Stock and the Special  Dividend Stock (if any) issuable
upon  conversion  of the Class B Preferred  Stock  exceed the maximum  number of
shares  of Common  Stock  (the  "Cap  Amount")  that the  Company  can,  without
shareholder approval, so issue pursuant to Nasdaq Rule 4460(i)(1)(d)(ii) (or any
other  applicable  Nasdaq Rules or any successor  rule) (the "Nasdaq 20% Rule").
The Cap Amount shall be  allocated  pro-rata to the Holders of Class B Preferred
Stock as  provided  in  subsection  (f)  below.  In the  event  the  Company  is
prohibited  from issuing  shares of Common Stock as a result of the operation of
this subsection (e), the Company shall comply with subsection (g) below.

                  (f)  Allocations  of Cap Amount and  Authorized  and  Reserved
Amount.  The initial Cap Amount and  Authorized  and  Reserved  Amount  shall be
allocated pro rata (the "Pro Rata Amount" among the Holders of Class B Preferred
Stock  based on the number of the shares of Class B  Preferred  Stock  initially
issued to each  Holder.  Each  increase  to the Cap  Amount and  Authorized  and
Reserved  Amount  shall be  allocated  pro rata  among  the  Holders  of Class B
Preferred  Stock  based on the number of the shares of Class B  Preferred  Stock
held by each Holder at the time of the increase in the Cap Amount or  Authorized
and  Reserved  Amount,  as the case may be. In the event a Holder  shall sell or
otherwise  transfer any of such Holder's shares of Class B Preferred Stock, each
transferee shall be allocated a pro rata portion of such transferor's Cap Amount
and Authorized and Reserved Amount.  Any portion of the Cap Amount or Authorized
and Reserved  Amount which remains  allocated to any person or entity which does
not hold any Class B Preferred Stock shall be allocated to the remaining Holders
of shares of Class B Preferred  Stock, pro rata based on the number of shares of
Class B Preferred Stock then held by such Holders. Each Holder's Pro Rata Amount
remains  allocated  to such Holder until  issuance  upon  conversion  of Class B
Preferred Stock or Class C Preferred  Stock.  The Company shall not issue shares
of Common  Stock to one  Holder  upon a  conversion  which  are part of  another
Holder's Pro Rata Amount, except to the extent that such other Holder's Pro Rata
Amount exceeds two (2) times such other Holder's  Required  Number of Shares (as
defined in Section 11(a)).

                  (g)  Adjustments  to Cap Amount and  Remedies  Upon Failure to
Convert due to Cap Amount.

                           (i)  Obligation  to Cure. If at any time for a period
of five (5) consecutive  trading days the then unissued  portion of any Holder's
Cap  Amount  is less than 120% of the  number  of  shares of Common  Stock  then
issuable upon  conversion of such Holder's shares of












Class B Preferred  Stock and upon  conversion of all Special  Dividend Stock (if
any) issuable upon  conversion of the Class B Preferred Stock (a "Trading Market
Trigger  Event"),  the Company shall  immediately  notify the Holders of Class B
Preferred  Stock of such  occurrence  and shall  immediately  take all necessary
action (including,  if necessary,  approval of its shareholders to authorize the
issuance  of the full  number of shares of Common  Stock which would be issuable
upon the  conversion  of Class B  Preferred  Stock  and upon  conversion  of all
Special  Dividend  Stock  (if  any)  issuable  upon  conversion  of the  Class B
Preferred  Stock,  but for the Cap Amount) to eliminate any  prohibitions  under
applicable law or the rules or regulations  of any stock  exchange,  interdealer
quotation system or other  self-regulatory  organization  with jurisdiction over
the Company or any of its securities on the Company's ability to issue shares of
Common  Stock in excess of the Cap  Amount.  In the event the  Company  fails to
eliminate all such prohibitions within ninety (90) days after the Trading Market
Trigger Event (provided,  however,  that the Company must file preliminary proxy
materials  with the SEC within  thirty (30) days of the Trading  Market  Trigger
Event), each Holder of Class B Preferred Stock shall thereafter have the option,
exercisable in whole or in part at any time and from time to time by delivery of
written notice ("Cap Redemption Notice") to the Company, to require the Company,
to purchase for cash, at an amount per share equal to 130% of the Total Value, a
portion of the Holder's Class B Preferred  Stock such that,  after giving effect
to such purchase,  the Holder's allocated portion of the Cap Amount exceeds 120%
of the total  number of shares of Common  Stock  issuable  to such  Holder  upon
conversion of its Class B Preferred  Stock and its Special  Dividend Stock to be
received upon  conversion of the Class B Preferred Stock on the date of such Cap
Redemption Notice. If the Company fails to redeem any of such shares within five
(5) business days after its receipt of a Cap Redemption Notice, then such Holder
shall be entitled to the remedies provided in Section 11(g)(ii) below.

                           (ii) Remedies.  If the Company fails to eliminate the
applicable  prohibitions  within the ninety (90) day cure period  referred to in
Section  11(g)(i) above and  thereafter the Company is prohibited,  at any time,
from issuing shares of Common Stock upon  conversion of Class B Preferred  Stock
or Special  Dividend  Stock (if any) to any Holder  because such issuance  would
exceed such Holder's  allocated  portion of the Cap Amount because of applicable
law or the rules or regulations  of any stock  exchange,  interdealer  quotation
system or other self-regulatory  organization with jurisdiction over the Company
or its  securities,  any Holder who is prohibited  from  converting  its Class B
Preferred Stock or Special Dividend Stock (if any) may:

                                    (A) require,  with the consent of Holders of
at least  fifty  percent  (50%) of the  outstanding  shares of Class B Preferred
Stock  (including  any shares of Class B Preferred  Stock held by the requesting
Holder),  the Company to terminate  the listing of its Common Stock and to cause
its Common Stock to be eligible for trading on the American Stock Exchange,  the
Nasdaq  National  Market System,  the Nasdaq Small Cap Market or on the over-the
counter  electronic  bulletin board, at the option of the requesting Holder; and
as a result thereof

                                    (B) require  the Company to issue  shares of
Common  Stock,  resaleable  on such  other  exchange,  in  accordance  with such
Holder's  Notice of Conversion and issue Special  Dividend Stock (if any) at the
Conversion  Trading  Price  (without  regard to the Special  Dividend  Quota) in
effect on the date of the Holder's written notice to the Company of 










its  election to receive  shares of Common Stock  pursuant to this  subparagraph
(B).

         Section 12.  Failure to Satisfy Conversions.

                  (a) Conversion Failure Payments. If, at any time, (x) a Holder
submits a Notice of Conversion  (or is deemed to submit such notice  pursuant to
Section  5(c)  hereof),  and the Company  fails for any reason to surrender to a
Common Courier for overnight (or 2 day, if overseas)  delivery to the Holder, on
or prior to the date that is one (1) trading day after the  Deadline  ("Delivery
Period")  for such  conversion,  such number of shares of Common  Stock to which
such Converting  Holder is entitled upon such conversion  (which shares shall be
listed,  authorized,  reserved,  registered,  and freely  tradable,  each to the
extent  required in this Class B Certificate of  Designation,  the  Registration
Rights  Agreement  between the Company and the  Holder(s)  and the  Subscription
Agreement between the Company and the Holder(s), collectively referred to as the
"Governing  Agreements"),  or (y) the Company  provides  notice to Holder at any
time of its  intention  not to issue  shares of Common  Stock upon  exercise  by
Holder of its conversion rights in accordance with the terms of this Certificate
of  Designation  (each of (x) and (y) being a  "Conversion  Failure"),  then the
Company  shall pay to such Holder cash  damages in an amount  equal to the lower
of:

                           (i) "Damages Amount" X "D" X .010, and
                           (ii)  the  highest   interest   rate   permitted   by
applicable law, where:

         "D"  means  the  number of days  beginning  the date of the  Conversion
Failure  through and  including  the Cure Date with  respect to such  Conversion
Failure;

         "Damages  Amount" means the Original Class B Issue Price for each share
of Class B Preferred  Stock subject to  Conversion  Failure plus all accrued and
unpaid Premium thereon as of the first day of the Conversion  Failure,  plus all
damage payments previously owed and unpaid.

         "Cure Date" means (i) with respect to a Conversion Failure described in
clause (x) of its definition, the date the Company effects the conversion of the
shares of Class B Preferred Stock submitted for conversion and (ii) with respect
to a Conversion Failure described in clause (y) of its definition,  the date the
Company  undertakes in writing to timely issue Common Stock in  satisfaction  of
all  conversions of Class B Preferred Stock in accordance with the terms of this
Certificate of Designation.

         The  payments  to which a Holder  shall be  entitled  pursuant  to this
Section are referred to herein as  "Conversion  Failure  Payments."  The parties
agree  that  the  damages  caused  by a breach  hereof  would  be  difficult  or
impossible to estimate accurately. Any accrued Conversion Failure Payments shall
be payable in cash by a  cashiers  check,  no later than ten (10) days after the
end of any month(s) for which such amounts accrue. In the event that the Company
has failed to pay any  Conversion  Failure  Payment  within five (5) days of the
date it is required to be paid, the Holder, at its option,  may elect to convert
all or any portion of such  accrued  Conversion  Failure  Payments,  at any time
prior to receipt of cash payment of such Conversion Failure Payment, into Common
Stock at a  conversion  price  equal to the  lesser of (i) the Fixed  Conversion
Price or (ii) the lowest  Conversion  Trading  Price in effect during the period
beginning on the date of the 











Conversion  Failure  through the Cure Date for such Conversion  Failure.  In the
event a Holder  elects to convert all or any portion of the  Conversion  Failure
Payments,  such Holder shall indicate on a Notice of Conversion  such portion of
the Conversion  Failure Payments which such Holder elects to so convert and such
conversion  shall otherwise be effected in accordance with provisions of Section
5.

                  (b) Buy-In  Cure.  Unless a  Conversion  Failure  described in
clause (y) of Section  12(a) hereof has occurred  with respect to such a Holder,
if (i) the Company  fails for any reason to deliver  during the Delivery  Period
shares of Common  Stock to a Holder upon a  conversion  of the Class B Preferred
Stock  and  (ii) on the same  date or  subsequent  to the end of the  applicable
Delivery Period with respect to such conversion,  a Holder purchases (in an open
market  transaction or otherwise) shares of Common Stock to make delivery upon a
sale by a Holder of the shares of Common  Stock (the "Sold  Shares")  which such
Holder  anticipated  receiving  upon such  conversion (a "Buy-In"),  the Company
shall pay such Holder within two (2) business days following  receipt of written
notice of a claim  pursuant  to this  Section  12(b) (in  addition  to any other
remedies  available  to  Holder)  the  amount by which (x) such  Holder's  total
purchase price (including brokerage commission, if any) for the shares of Common
Stock so purchased exceeds (y) the net proceeds received by such Holder from the
sale of the Sold Shares.  For example,  if a Holder  purchases  shares of Common
Stock having a total purchase price of $11,000 to cover a Buy-In with respect to
shares of Common  Stock sold for  $10,000,  the Company  will be required to pay
such Holder $1,000. A Holder shall provide the Company written notification (and
trading records, if reasonably requested by the Company), indicating any amounts
payable to Holder pursuant to this Section 12.

                  (c)  Adjustment  to  Conversion  Price.  If a  Holder  has not
received  certificates for all shares of Common Stock and Special Dividend Stock
(if any)  within  two (2)  business  days or (if  overseas  delivery)  three (3)
business days following the expiration of the Delivery  Period with respect to a
conversion  of any portion of any of such Holder's  Class B Preferred  Stock for
any reason,  then (upon Holder's written request) (I) the Fixed Conversion Price
applicable  for  calculating  the  number  of Common  Shares to which  Holder is
entitled upon conversion of such portion of the Class B Preferred Stock shall be
reduced by the  amount by which the  Conversion  Trading  Price in effect on the
Conversion Date exceeds the lowest Conversion Trading Price in effect during the
period  beginning on, and including,  such Conversion Date through and including
the Cure Date, and (II) the Conversion  Trading Price applicable for calculating
the number of shares of Special  Dividend  Stock to which Holder is entitled (if
any) upon  conversion  of such  portion  of the Class B  Preferred  Stock  shall
thereafter  be the lowest  Conversion  Trading Price in effect during the period
beginning on, and including, such Conversion Date through and including the Cure
Date.  In  addition,  if there  shall  occur a  Conversion  Failure  of the type
described in clause (y) of Section 12(a),  then the Fixed  Conversion Price with
respect to any  conversion of Class B Preferred  Stock  thereafter  shall be the
lowest  Conversion  Trading  Price in  effect  at any  time  during  the  period
beginning  on, and  including,  the date of the  occurrence  of such  Conversion
Failure  through and including the Cure Date. The  Conversion  Trading Price and
the Fixed Conversion Price shall thereafter be subject to further adjustment for
any events described in Section 5(d).

         Section 13.  Events of Default.










                  (a) Holder's Option to Demand Prepayment.  Upon the occurrence
of an Event of Default (as herein defined), the Company shall, unless a specific
cash payment is already  specified in the Governing  Agreements  with respect to
such default,  pay the Holders  (beginning  after the specified  cure period) an
amount  equal to  three  percent  (3%) per  month  of the  aggregate  amount  of
outstanding  Class B Preferred  Stock held by Holder,  accruing  daily until the
Event of Default is cured or until the Class B Preferred  Stock is prepaid under
this Section,  payable in cash by a cashiers  check, no later than five (5) days
after  the  end  of  any  month(s)  for  which  such  amounts  accrue  ("Default
Payments").  In addition,  each Holder shall have the right to elect at any time
and from time to time prior to the cure by the  Company of such Event of Default
to have all or any portion of such Holder's then  outstanding  Class B Preferred
Stock prepaid by the Company for an amount equal to the Holder Demand Prepayment
Amount (as herein defined):

                           (i) The right of a Holder to elect  prepayment  shall
be exercisable  upon the occurrence of an Event of Default by such Holder in its
sole discretion by delivery of a Demand Prepayment Notice (as herein defined) in
accordance with the procedures set forth in this Section 13. Notwithstanding the
exercise of such  right,  the Holder  shall be  entitled  to exercise  all other
rights and  remedies  available  under the  provisions  of this  Certificate  of
Designation and at law or in equity.

                           (ii) A Holder shall effect each demand for prepayment
under this  Section 13 by giving at least five (5) business  days prior  written
notice  (the  "Demand  Prepayment  Notice")  of the date which the Holder  shall
specify and upon which such  prepayment is to become  effective (the  "Effective
Date of Demand  of  Prepayment"),  the  Class B  Preferred  Stock  selected  for
prepayment and the Holder Demand Prepayment Amount to the Company at the address
and facsimile number provided in the stock records of the Company,  which Demand
Prepayment  Notice  shall be deemed to have been  delivered  on the business day
after  the date of  transmission  of  Holder's  facsimile  (with a copy  sent by
overnight courier to the Company) of such notice.

                           (iii) The Holder  Demand  Prepayment  Amount shall be
paid to a Holder whose Class B Preferred Stock is being prepaid within three (3)
business days following the Effective  Date of Demand of  Prepayment;  provided,
however,  that the Company  shall not be obligated to deliver any portion of the
Holder Demand  Prepayment Amount until one (1) business day following either the
date on which the Class B Preferred  Stock being  prepaid are  delivered  to the
office of the Company, or the date on which the Holder notifies the Company that
such Class B Preferred  Stock have been lost,  stolen or destroyed  and delivers
the documentation required in accordance with Section 5(b)(i) hereof.

                  (b)  Holder  Demand  Prepayment  Amount.  The  "Holder  Demand
Prepayment  Amount"  means the  greater of: (a) 1.3 times the Total Value of the
Class B  Preferred  Stock for which  demand is being  made,  through the date of
prepayment or (b) the product of (1) the highest price at which the Common Stock
is traded on the date of the Event of  Default  (or on the most  recent  trading
date for the  Common  Stock if the  Common  Stock is not  traded  on such  date)
divided by the Fixed Conversion Price (or the Conversion Trading Price in effect
as of the date










of the Event of Default, whichever is less), and (2) the Total Value through the
date of prepayment.

                  (c) Events of Default.  An "Event of Default" means any one of
the following:

                           (i) a material  failure by the Company to comply with
the Conversion Failure remedies described in Section 12 hereof;

                           (ii) a Share  Authorization  and Reservation  Failure
described in Section 11(b) hereof,  if such Share  Authorization and Reservation
Failure  continues  uncured  for ninety  (90) days after the  Authorization  and
Reservation  Trigger Date (for  purposes of this  subsection  (ii), a prepayment
demand may be made by a Holder only to the extent that there is an  insufficient
number of shares of Common Stock authorized and reserved to effect conversion of
(a) all of  such  Holder's  outstanding  Class B  Preferred  Stock,  and (b) all
Special  Dividend  Stock  issuable  upon  conversion  of such  shares of Class B
Preferred Stock,  provided,  however,  that Holder need not actually convert any
shares  of Class B  Preferred  Stock  and use up its  available  authorized  and
reserved shares of Common Stock in order to demand such prepayment);

                           (iii)  (a) the  Company  has less  than the  Required
Number  of  Shares   reserved  for  issuance  to  any  Holder  or  Holders  upon
conversions,  (b) the Company has shares of Common Stock authorized for issuance
upon conversion of the Preferred Stock which have not yet been reserved for such
issuance  ("Authorized But Not Yet Reserved Shares"),  and (c) the Company fails
to reserve  for  issuance to the Holders  the  Authorized  But Not Yet  Reserved
Shares within five (5) business days of the date they are authorized;

                           (iv) the Company  fails to pay any cash  payments due
to Holder under the terms of this Class B Certificate of Designation within five
(5) days after Holder has notified the Company, in writing, that such payment is
past due and that the Holder intends to declare an "Event of Default" under this
Section 13 if such payment is not made;

                           (v)  the  Company  fails  to  maintain  an  effective
registration  statement as required by the Registration Rights Agreement between
the Company and the Holder(s) (the "Registration Rights Agreement") except where
(A) such  failure  lasts no longer than seven (7)  consecutive  trading  days or
twenty one (21) days in any  twelve  (12) month  period,  or (B) the  Conversion
Shares may be sold immediately,  without volume limitation, without registration
under the Act, by virtue of Rule 144 or similar provisions.;

                           (vi) for three (3) consecutive trading days or for an
aggregate  of ten (10)  trading  days in any nine (9) month  period,  the Common
Stock  (including any of the shares of Common Stock issuable upon  conversion of
the Class B Preferred  Stock or Class C Preferred  Stock) is (i) suspended  from
trading on any of Nasdaq  Small-Cap,  NMS, NYSE, AMEX or the OTC Bulletin Board,
or (ii) is not  listed  and  qualified  for  trading  on at least  one of Nasdaq
Small-Cap, NMS, NYSE, AMEX or the OTC Bulletin Board;

                           (vii) the Company fails,  and such failure  continues
uncured for three (3) business days after the Company has been notified  thereof
in writing by a Holder, to remove any











restrictive legend on any certificate for any shares of Common Stock issued to a
Holder upon  conversion of any Class B Preferred  Stock, as and when required by
this Certificate of Designation, the Subscription Agreement, between the Company
and the Holder(s)  (the  "Subscription  Agreement") or the  Registration  Rights
Agreement, unless such legend removal is prohibited by applicable law;

                           (viii)  the   Company   breaches,   and  such  breach
continues   uncured  for  three  (3)  business   days  (after  any  cure  period
specifically  set forth in the Governing  Agreements,  if applicable)  after the
Company  has been  notified  thereof  in writing  by a Holder,  any  significant
covenant  in or  other  material  term  or  condition  of any  of the  Governing
Agreements  (including,  without  limitation,  the failure to make any  required
liquidated  damage or other cash  payment  hereunder  or under the  Registration
Rights  Agreement),  provided that if any such breach expressly  provides a cure
period,  then such cure period shall apply and if such breach provides for money
damages in the applicable Governing Agreement,  and such money damages are being
timely  paid,  then such  breach  shall not  constitute  a  default  under  this
subsection unless such breach continues for sixty (60) days;

                           (ix) any  representation  or  warranty of the Company
made  herein or in any  agreement,  statement  or  certificate  given in writing
pursuant hereto or in connection herewith  (including,  without limitation,  the
Subscription  Agreement and Registration  Rights Agreement),  shall be knowingly
false or intentionally misleading in any material respect when made;

                           (x) the  Company  or any  subsidiary  of the  Company
shall  make an  assignment  for the  benefit of its  creditors,  or apply for or
consent to the  appointment of a receiver or trustee for it or for a substantial
part of its property or business, or such receiver or trustee shall otherwise be
appointed; or

                           (xi)  bankruptcy,   insolvency,   reorganization   or
liquidation proceedings or other proceedings for relief under any bankruptcy law
or any law for the  relief of debtors  shall be  instituted  by or  against  the
Company or any  subsidiary of the Company (and such  proceedings  shall continue
unstayed for thirty (30) days).

                  (d) Failure to Pay Damages Amount. If the Company fails to pay
the Holder Demand Prepayment Amount within five (5) business days of its receipt
of a Demand  Prepayment  Notice,  then such Holder shall have the right,  at any
time and from time to time prior to the payment of the Holder Demand  Prepayment
Amount, to require the Company,  upon written notice, to immediately convert (in
accordance  with the terms of Section 5) all or any portion of the Holder Demand
Prepayment  Amount,  into  shares of Common  Stock at the lower of (i) the Fixed
Conversion  Price or (ii) the then current  Conversion  Trading Price,  provided
that if the Company has not  delivered the full number of shares of Common Stock
issuable upon such  conversion,  which shares shall be listed,  registered,  and
freely tradable, each to the extent required by the Governing Agreements, within
three (3)  business  days  after the  Company  receives  written  notice of such
conversion,  the  Conversion  Trading  Price with respect to such Holder  Demand
Prepayment Amount shall thereafter be deemed to be the lowest Conversion Trading
Price in effect during the period  beginning on the date of the Event of Default
through 











the date on which the  Company  delivers to the Holder the full number of shares
of Common Stock  issuable  upon such  conversion,  which shares shall be listed,
registered,  and freely  tradable,  each to the extent required by the Governing
Agreements.  In the event the  Company  is not able to pay all  amounts  due and
payable with  respect to all Class B Preferred  Stock  subject to Holder  Demand
Prepayment  Notices,  the Company  shall pay the Holders  such amounts pro rata,
based on the total amounts  payable to such Holder relative to the total amounts
payable to all Holders.

         Section  14.  Remedies,  Other  Obligations,  Breaches  and  Injunctive
Relief.  The  remedies  provided in this  Certificate  of  Designation  shall be
cumulative and in addition to all other remedies available under the Certificate
of Designation at law or in equity  (including a decree of specific  performance
and/or other  injunctive  relief),  no remedy contained herein shall be deemed a
waiver of compliance  with the provision  giving rise to such remedy and nothing
herein shall limit a Holder's  right to pursue actual damages for any failure by
the Company to comply with the terms of this Certificate of Designation. Amounts
set forth or provided for herein with respect to  payments,  conversion  and the
like (and the  computation  thereof)  shall be the amounts to be received by the
holder hereof and shall not, except as expressly  provided herein, be subject to
any other  obligation of the Company (or the performance  thereof).  The Company
acknowledges  that  a  breach  by it of its  obligations  hereunder  will  cause
irreparable  harm to the Holders of Class B Preferred  Stock and that the remedy
at law for any such breach may be inadequate.  The Company  therefore agrees, in
the event of any such  breach  or  threatened  breach,  the  Holders  of Class B
Preferred Stock shall be entitled,  in addition to all other available remedies,
to an  injunction  restraining  any  breach,  without the  necessity  of showing
economic loss and without any bond or other security being required.

         Section 15. Assignability.  The Class B Preferred Stock shall be freely
assignable by a Holder subject to applicable  securities  laws and any agreement
to the contrary signed by such Holder.











                          CERTIFICATE OF DESIGNATION OF
                       CLASS C CONVERTIBLE PREFERRED STOCK

                                       OF

                           VION PHARMACEUTICALS, INC.

It is hereby certified that:

         1. The name of the Company  (hereinafter  called the "Company") is Vion
Pharmaceuticals, Inc., a Delaware corporation.

         2. The  certificate  of  incorporation  of the Company  authorizes  the
issuance of Five million  (5,000,000)  shares of preferred stock, $.01 par value
per share,  and  expressly  vests in the Board of  Directors  of the Company the
authority provided therein to issue any or all of said shares in one (1) or more
series and by resolution or resolutions to establish the  designation and number
and to fix the relative rights and preferences of each series to be issued.

         3. The Board of  Directors of the  Company,  pursuant to the  authority
expressly  vested in it as  aforesaid,  has  adopted the  following  resolutions
creating a Class C issue of Preferred Stock:

         RESOLVED,  that  twenty-five  thousand  (25,000)  of the  five  million
(5,000,000)  authorized  shares  of  Preferred  Stock  of the  Company  shall be
designated Class C Convertible  Preferred  Stock,  $.01 par value per share, and
shall possess the rights and preferences set forth below:

         Section 1. Designation and Amount. The shares of such series shall have
a par value of $.01 per share and  shall be  designated  as Class C  Convertible
Preferred  Stock  (the  "Class C  Preferred  Stock")  and the  number  of shares
constituting the Class C Preferred Stock shall be twenty-five thousand (25,000).
The Class C Preferred  Stock shall have a stated value per share (the  "Original
Class C Issue Price"), calculated as follows:

         Original Class C Issue Price= Conversion Rate X Market Price,

         where,

         o  "Conversion Rate" shall have the meaning ascribed to it in Section
5(a) below, and

         o "Market Price" shall equal the average  Closing Bid Price (as defined
in Section 5 below), of the Company's Common Stock for the ten (10) trading days
immediately preceding the Date of Conversion, as defined below.

         Section 2. Rank. The Class C Preferred  Stock shall rank: (i) junior to
any other  class or series of capital  stock of the  Company  hereafter  created
specifically  ranking  by its  terms  senior  to the  Class  C  Preferred  Stock
(collectively,  the  "Senior  Securities");  (ii) prior to all of the








Company's Common Stock, $.01 par value per share ("Common  Stock");  (iii) prior
to any class or series of capital  stock of the  Company  hereafter  created not
specifically  ranking  by its  terms  senior  to or on  parity  with any Class C
Preferred Stock of whatever  subdivision  (collectively,  with the Common Stock,
"Junior  Securities");  and (iv) on parity with the Company's  Class A Preferred
Stock, the Company's Class B Preferred Stock, and any class or series of capital
stock of the  Company  hereafter  created  specifically  ranking by its terms on
parity with the Class C Preferred Stock ("Parity Securities") in each case as to
distributions  of assets  upon  liquidation,  dissolution  or  winding up of the
Company, whether voluntary or involuntary (all such distributions being referred
to collectively as "Distributions").

         Section  3.  Dividends.  The  Class  C  Preferred  Stock  will  bear no
dividends,  and the holders of the Class C Preferred Stock ("Holders") shall not
be entitled to receive dividends on the Class C Preferred Stock.

         Section 4.   Liquidation Preference.

                  (a) In the event of any liquidation, dissolution or winding up
of the Company ("Liquidation Event"), either voluntary or involuntary,  the then
Holders of shares of Class C  Preferred  Stock  shall be  entitled  to  receive,
immediately  after  any  distributions  to  Senior  Securities  required  by the
Company's  Certificate of Incorporation  or any certificate of designation,  and
prior in preference to any distribution to Junior  Securities but in parity with
any distribution to Parity Securities, an amount per share equal to the Original
Class C Issue Price for each  outstanding  share of Class C Preferred  Stock. If
upon the occurrence of such event, and after payment in full of the preferential
amounts with respect to the Senior Securities, the assets and funds available to
be  distributed  among the  Holders  of the Class C  Preferred  Stock and Parity
Securities  shall be  insufficient  to permit the payment to such Holders of the
full preferential  amounts due to the Holders of the Class C Preferred Stock and
the Parity  Securities,  respectively,  then the entire  assets and funds of the
Company  legally  available  for  distribution  shall be  distributed  among the
Holders  of the Class C  Preferred  Stock and the Parity  Securities,  pro rata,
based on the respective  liquidation  amounts to which each such series of stock
is entitled by the Company's Certificate of Incorporation and any certificate(s)
of designation relating thereto.

                  (b)  Upon  the  completion  of the  distribution  required  by
subsection 4(a), if assets remain in this Company,  they shall be distributed to
holders of Junior  Securities in accordance  with the Company's  Certificate  of
Incorporation including any duly adopted certificate(s) of designation.

                  (c) At each Holder's option, a sale, conveyance or disposition
of all or substantially  all of the assets of the Company or the effectuation by
the Company of a  transaction  or series of related  transactions  in which more
than fifty percent (50%) of the voting power of the Company is disposed of shall
be deemed to be a Liquidation Event as defined in Section 4(a); provided further
that (i) a consolidation,  merger, acquisition, or other business combination of
the Company with or into any other  publicly  traded company or companies (or in
which the Company is the surviving entity and remains a publicly traded Company)
shall not be treated  as a  Liquidation  Event as  defined  in Section  4(a) but
instead  shall  be  treated  pursuant  to  Section  5(d)











hereof,  and  (ii) a  consolidation,  merger,  acquisition,  or  other  business
combination of the Company with or into any other non-publicly traded company or
companies  shall be treated as a  Liquidation  Event as defined in Section 4(a).
The Company shall not effect any  transaction  described in this subsection 4(c)
unless it first gives thirty (30) days prior notice of such transaction  (during
which time the Holder shall be entitled to immediately convert any or all of its
shares of Class C Preferred Stock into Common Stock ("Conversion Shares")).

                  (d) In the event that,  immediately  prior to the closing of a
transaction  described  in Section  4(c) which would  constitute  a  Liquidation
Event,  the cash  distributions  required by Section  4(a) or Section 6 have not
been made,  the Company  shall  either:  (i) cause such  closing to be postponed
until such cash  distributions  have been made, or (ii) cancel such transaction,
in which event the rights of the Holders of Class C Preferred Stock shall be the
same as existing immediately prior to such proposed transaction.

         Section 5.  Conversion.  The record Holder(s) of this Class C Preferred
Stock shall have conversion rights as follows (the "Conversion Rights"):

                  (a) Right to  Convert.  The  record  Holder(s)  of the Class C
Preferred Stock shall be entitled to convert, any or all the shares of the Class
C Preferred  Stock  anytime on or after the date upon which Holder  acquires the
right to have such shares issued (which right is acquired upon conversion of the
applicable Class B Preferred Stock) (the "Issue Date"), as defined below, at the
office of the Company into that number of fully-paid and  non-assessable  shares
of Common  Stock  calculated  in  accordance  with the  following  formula  (the
"Conversion Rate"):

Number of shares of Common  Stock  issued  upon  conversion  of one (1) share of
Class C Preferred Stock =


                                     1,000
                                     -----
                             Fixed Conversion Price


where,

o Fixed  Conversion  Price = 100% of the average  Closing Bid Price,  as defined
below,  for the thirty (30)  trading  days ending on the Last  Closing  Date (as
defined in the  Certificate  of  Designation  for the Class B Preferred  Stock),
which is $4.065,

                  and

o "Closing Bid Price" shall mean the closing bid price of the  Company's  Common
Stock on the Nasdaq Small Cap Market, or if no longer traded on the Nasdaq Small
Cap Market, the closing bid price on the principal national  securities exchange
or the over-the-counter market on which the Common Stock is so traded and if not
available,  the  mean of the  high  and low  prices  on the  principal  national
securities  exchange or the National  Market System on which the Common 










Stock is so traded.

                  (b)  Mechanics  of  Conversion.  In order to  convert  Class C
Preferred Stock into full shares of Common Stock,  the Holder shall (i) send via
facsimile, on or prior to 11:59 p.m., New York City time (the "Conversion Notice
Deadline") on the Date of  Conversion,  a copy of the fully  executed  notice of
conversion  ("Notice of Conversion") to the Company at the office of the Company
stating that the Holder  elects to convert,  which notice shall specify the Date
of Conversion,  the number of shares of Class C Preferred Stock to be converted,
and a  calculation  of the number of shares of Common Stock  issuable  upon such
conversion  (together  with a copy of the front page of each  certificate  to be
converted if issued prior  thereto) and (ii)  surrender to a common  courier for
delivery to the office of the Company,  the original  certificates  representing
the Class C  Preferred  Stock  being  converted  if issued  prior  thereto  (the
"Preferred Stock Certificates"),  duly endorsed for transfer; provided, however,
that the Company  shall not be obligated to issue  certificates  evidencing  the
shares of Common Stock issuable upon such conversion unless either the Preferred
Stock Certificates are delivered to the Company as provided above, or the Holder
notifies the Company that such certificates have been lost,  stolen,  destroyed,
or not yet issued  (subject  to the  requirements  of  subparagraph  (i) below).
Unless  otherwise  noted in writing  by the  Holder,  any  Notice of  Conversion
tendered to the Company for conversion of Class B Preferred  Stock in accordance
with the  Class B  Certificate  of  Designation  shall be deemed to be a validly
tendered  Notice of Conversion  for  conversion  of the Class C Preferred  Stock
issued or issuable upon conversion of such Class B Preferred Stock. Upon receipt
by the Company of a facsimile copy of a Notice of Conversion,  the Company shall
immediately  send,  via facsimile,  a  confirmation  of receipt of the Notice of
Conversion to Holder which shall specify that the Notice of Conversion  has been
received and the name and  telephone  number of a contact  person at the Company
whom the Holder should contact regarding  information related to the Conversion.
In the case of a dispute  as to the  calculation  of the  Conversion  Rate,  the
Company shall,  within the time period  required under Section  5(b)(ii)  below,
issue to the Holder the number of Shares that are not  disputed and shall submit
the disputed  calculations to its outside  accountant via facsimile within three
(3) days of receipt of Holder's  Notice of  Conversion.  The Company shall cause
the accountant to perform the  calculations and notify the Company and Holder of
the  results  no later  than two  business  days from the time it  receives  the
disputed calculations.Accountant's calculation shall be deemed conclusive absent
manifest error.

                           (i) Lost or Stolen Certificates.  Upon receipt by the
Company  of  evidence  of the loss,  theft,  destruction  or  mutilation  of any
Preferred Stock Certificates representing shares of Class C Preferred Stock, and
(in the case of loss, theft or destruction) of indemnity or security  reasonably
satisfactory  to  the  Company,  and  upon  surrender  and  cancellation  of the
Preferred  Stock  Certificate(s),  if  mutilated,  the Company shall execute and
deliver new Preferred Stock  Certificate(s) of like tenor and date. However, the
Company shall not be obligated to re-issue such lost or stolen  Preferred  Stock
Certificates  if Holder  contemporaneously  requests the Company to convert such
Class C Preferred Stock into Common Stock.

                           (ii)  Delivery of Common Stock Upon  Conversion.  The
Company  shall,  no later than the close of business on the third (3rd) business
day (the  "Deadline")  after











receipt by the Company of a facsimile copy of a Notice of Conversion and receipt
by Company of all  necessary  documentation  duly  executed  and in proper  form
required for conversion,  including the original Preferred Stock Certificates to
be converted,  if issued (or after provision for security or  indemnification in
the case of lost or destroyed certificates, if required), and/or shall cause the
transfer  agent  for its  Common  Stock  (the  "Transfer  Agent")  to issue  and
surrender  to a common  courier for either  overnight or (if delivery is outside
the United  States)  two (2) day  delivery  to the Holder at the  address of the
Holder as shown on the stock records of the Company a certificate for the number
of shares of Common Stock to which the Holder shall be entitled as aforesaid. If
the Holder converts Class B Preferred Stock and in the Notice of Conversion, the
Holder elects to convert the shares of Class C Preferred Stock to be issued as a
Special Dividend upon the conversion of the Class B Preferred Stock, the Class C
Preferred  Stock  certificates  shall be deemed  delivered to the Company on the
date of such Notice of Conversion.  Notwithstanding the foregoing, if the Holder
converts  Class B Preferred  Stock and in the Notice of  Conversion,  the Holder
elects  to  convert  the  shares  of Class C  Preferred  Stock to be issued as a
Special  Dividend upon  conversion of the Class B Preferred  Stock,  the Company
shall  not be  obligated  to  deliver  certificates  representing  Common  Stock
underlying  such  Class C  Preferred  Stock  prior  to the  date on  which it is
obligated to deliver Common Stock  underlying such Class B Preferred  Stock, and
provided  further that damages or penalties shall not accrue with regard to such
conversion of Class C Preferred Stock prior to the time at which such damages or
penalties  would accrue with regard to the  conversion of such Class B Preferred
Stock.

                           (iii) No Fractional  Shares. If any conversion of the
Class C Preferred  Stock would  create a  fractional  share of Common Stock or a
right to acquire a fractional share of Common Stock, such fractional share shall
be  disregarded  and  the  number  of  shares  of  Common  Stock  issuable  upon
conversion, in the aggregate, shall be the next higher number of shares.

                           (iv) Date of Conversion. The date on which conversion
occurs  (the "Date of  Conversion")  shall be deemed to be the date set forth in
such Notice of  Conversion,  provided (i) that the advance copy of the Notice of
Conversion is sent via facsimile to the Company before 11:59 p.m., New York City
time,  on the Date of  Conversion,  and (ii) that the original  Preferred  Stock
Certificates representing the shares of Class C Preferred Stock to be converted,
if  issued,  are  surrendered  by  depositing  such  certificates  with a common
courier,  for delivery to the Company as provided  above, as soon as practicable
after the Date of  Conversion.  The person or persons  entitled  to receive  the
shares of Common Stock  issuable upon such  conversion  shall be treated for all
purposes as the record  Holder or Holders of such shares of Common  Stock on the
Date of Conversion.

                  (c) Automatic Conversion or Redemption.  Each share of Class C
Preferred  Stock  outstanding  on the date which is two (2) years after the Last
Closing  Date (as  defined  in the  Certificate  of  Designation  of the Class B
Preferred  Stock) or, if not a business day, the first  business day  thereafter
("Termination  Date")  automatically  shall,  provided  that  there  has been no
uncured  Event of Default,  be converted  ("Automatic  Conversion")  into Common
Stock  on such  date  at the  Conversion  Rate  then in  effect  (calculated  in
accordance with the formula in Section 5(a) above),  where the Termination  Date
shall be deemed  the Date of  Conversion  with  respect to such  conversion  for
purposes  of this  Certificate  of  Designation.  In the  case  of an  Automatic











Conversion,  the Company and the Holders shall follow the applicable  conversion
procedures set forth in this Certificate of Designation; provided, however, that
the Holders are not required to send the Notice of  Conversion  contemplated  by
Section 5(b).  Nothing in this Section 5(c) shall be construed to limit Holder's
ability to pursue  Holder's  rights  under  Sections  12 and 13 hereof.  At each
Holder's  option,  upon written  notice from the investor no later than five (5)
business days prior to the original Termination Date, the Termination Date shall
be delayed for the aggregate number of days during which there is continuing one
or more Events of Default or a Conversion Failure anytime during the term of the
Class C Preferred Stock.

                  (d)      Adjustment to Conversion Rate.

                           (i) Adjustment to Fixed Conversion Price Due to Stock
Split,  Stock  Dividend,  Etc. If, prior to the conversion of all of the Class C
Preferred Stock,  the number of outstanding  shares of Common Stock is increased
by a stock split,  stock dividend,  or other similar event, the Fixed Conversion
Price shall be proportionately  reduced,  or if the number of outstanding shares
of Common Stock is decreased by a combination or  reclassification of shares, or
other  similar  event,  the  Fixed  Conversion  Price  shall be  proportionately
increased.

                           (ii) No Fractional  Shares.  If any adjustment  under
this Section 5(d) would create a fractional  share of Common Stock or a right to
acquire a  fractional  share of Common  Stock,  such  fractional  share shall be
disregarded  and the number of shares of Common Stock  issuable upon  conversion
shall be the next higher number of shares.

                           (iii) Adjustments.

                                    (A) Adjustment Due to Merger, Consolidation,
Etc. If, prior to the conversion of all Class C Preferred Stock,  there shall be
any merger, consolidation, exchange of shares, recapitalization, reorganization,
or other  similar  event,  as a result of which  shares  of Common  Stock of the
Company shall be changed into (or the shares of Common Stock become  entitled to
receive) the same or a different  number of shares of the same or another  class
or classes of stock or securities of the Company or another entity or there is a
sale of all or  substantially  all the Company's  assets or there is a change of
control  transaction  not deemed to be a  liquidation  pursuant to Section 4(c),
then the Holders of Class C Preferred  Stock shall  thereafter have the right to
receive upon conversion of Class C Preferred Stock,  upon the basis and upon the
terms and conditions  specified herein and in lieu of the shares of Common Stock
immediately theretofore issuable upon conversion,  such stock, securities and/or
other  assets  which the  Holder  would  have been  entitled  to receive in such
transaction had the Class C Preferred Stock been converted  immediately prior to
such transaction, and in any such case appropriate provisions shall be made with
respect to the  rights and  interests  of the  Holders of the Class C  Preferred
Stock to the end that the  provisions  hereof  (including,  without  limitation,
provisions for the adjustment of the number of shares  issuable upon  conversion
of the Class C Preferred Stock) shall thereafter be applicable, as nearly as may
be  practicable in relation to any securities  thereafter  deliverable  upon the
exercise hereof. The Company shall not effect any transaction  described in this
subsection  5(d)(iii)  unless (a) it first gives at least thirty (30) days prior
notice of such  merger,  consolidation,  exchange  of shares,  recapitalization,
reorganization,  or other  similar  event (during which time the Holder shall be
entitled to convert its shares of 










Class C Preferred  Stock into Common  Stock and (b) the  resulting  successor or
acquiring  entity  (if  not the  Company)  assumes  by  written  instrument  the
obligations of the Company under this Certificate of Designation  including this
subsection 5(d)(iii).

                                    (B)  Adjustment Due to  Distribution.  If at
any time after the Issue Date of any Class C Preferred  Stock, the Company shall
declare or make any distribution of its assets (or rights to acquire its assets)
to Holders of Common Stock as a partial liquidating  dividend,  by way of return
of capital or otherwise (including any dividend or distribution to the Company's
shareholders in cash or shares (or rights to acquire shares) of capital stock of
any other public or private  company,  including but not limited to a subsidiary
or  spin-off  of the  Company (a  "Distribution"),  then the  Holders of Class C
Preferred  Stock shall be  entitled,  upon any  conversion  of shares of Class C
Preferred Stock or conversion of Special Dividend Stock (if any) issuable upon a
subsequent conversion of Class B Preferred Stock, in each case after the date of
record for determining  shareholders  entitled to such Distribution,  to receive
the  amount of such  assets  which  would have been  payable to the Holder  with
respect to the shares of Common Stock  issuable upon such  conversion of Class C
Preferred  Stock, had such Holder been the holder of such shares of Common Stock
on  the  record  date  for  determination  of  shareholders   entitled  to  such
Distribution.

                           (iv)  (A)   Adjustment  Due  to  Issuances  of  Other
Securities.  If at any time or from time to time  after  the  Issue  Date of any
Class C Preferred Stock, the Company shall issue or sell Common Stock or rights,
options,  warrants or other securities convertible into Common Stock, (excluding
those rights,  options,  warrants or other  securities  convertible into no more
than 18,000,000  shares of Common Stock  outstanding as of the Last Closing Date
or underlying  such  securities and future  ordinary 5% annual  dividends on its
Class A Convertible  Preferred  Stock), at a price per share which is lower than
the then effective  Fixed  Conversion  Price,  then the Conversion Rate shall be
increased  by  multiplying  the  Conversion  Rate  theretofore  in  effect  by a
fraction,  of which the numerator  shall be the number of shares of Common Stock
outstanding  immediately prior to the issuance of such shares, rights,  options,
warrants  or  convertible  securities  plus the number of  additional  shares of
Common Stock offered for subscription or purchase,  and of which the denominator
shall be the number of shares of Common Stock  outstanding  immediately prior to
the issuance of such rights,  options,  warrants or convertible  securities plus
the number of shares which the aggregate  offering  price of the total number of
shares  offered would  purchase at the then effective  Fixed  Conversion  Price,
provided,  however,  that no such  adjustment  shall be made which  results in a
decrease in the Conversion  Rate.  Such  adjustment  shall be made whenever such
rights, options, warrants or convertible securities are issued, and shall become
effective  immediately and retroactive to the record date for the  determination
of  stockholders  entitled  to  receive  such  rights,   options,   warrants  or
convertible  securities.  Notwithstanding  the foregoing,  no adjustment will be
required  on  account  of (i)  the  exercise  of any  of the  options  presently
outstanding under the Company's Amended and Restated 1993 Stock Option Plan (the
"Plan") for officers,  directors and certain other key personnel of the Company,
or (ii) the issuance or exercise of any other  securities which may hereafter be
granted or exercised under the Plan or under any other employee  benefit plan of
the  Company,  but only to the extent that all shares of Common  Stock issued or
issuable  pursuant to such plan or plans do not exceed 4,000,000 shares, as such
number may be appropriately adjusted for dilutive events, or (iii) shares issued
in an underwritten public offering.










                                    (B)    Adjustment   Due   to   Expired   and
Unexercised Convertible Securities.  If, in any case, the total number of shares
of Common Stock  issuable upon  exercise,  conversion or exchange of any rights,
options,   warrants  or  convertible  securities   (collectively,   "Convertible
Securities")  is not,  in fact,  issued and the rights to  exercise,  convert or
exchange  such  Convertible  Securities  shall have expired or  terminated,  the
Conversion  Rate then in effect will be readjusted to the Conversion  Rate which
would have been in effect at the time of such expiration or termination had such
Convertible  Securities,  to the extent  outstanding  immediately  prior to such
expiration or termination  (other than in respect of the actual number of shares
of Common Stock issued upon exercise or conversion thereof), never been issued.

                  (e) No Five Percent Holders.  Notwithstanding  anything to the
contrary  contained herein, the Class C Preferred Stock shall not be convertible
by a Holder or at the  Termination  Date to the extent  (but only to the extent)
that, if converted by such Holder or at the  Termination  Date, the Holder would
beneficially  own in  excess  of 4.9% of the then  outstanding  shares of Common
Stock of the  Company  (the "4.9%  Limitation"),  provided,  however,  that such
limitation  shall  not  apply to  conversions  tendered  in  anticipation  of or
following a merger,  acquisition,  or other business  combination  involving the
Company or pursuant to bankruptcy or insolvency proceedings.  To the extent this
limitation  applies,  the determination of whether Class C Preferred Stock shall
be convertible  (vis-a vis other  securities  owned by such Holder) and of which
Class C Preferred  Stock shall be converted  shall be in the sole  discretion of
the Holder and submission of the Class C Preferred Stock for conversion shall be
deemed to be the Holder's  determination of whether such Class C Preferred Stock
is  convertible,  subject  to such  aggregate  percentage  limitations.  For the
purposes  of this  subparagraph,  beneficial  ownership  and  all  calculations,
including  without  limitation,  with  respect  to  calculations  of  percentage
ownership shall be determined in accordance with Section 13(d) of the Securities
Exchange   Act  of  1934,   as   amended,   and  the   Regulations   thereunder.
Notwithstanding  the  foregoing,  each Holder shall have the right to waive such
restriction or increase such  percentage  upon sixty one (61) days' prior notice
to the Company and to decrease  any such  percentage  immediately  upon  written
notice to the Company.  No transferee of Class C Preferred  Stock shall be bound
by such restriction unless the transferee expressly so agrees.

         Section 6. [Intentionally Left Blank]

         Section 7. Voting  Rights.  The Holders of the Class C Preferred  Stock
shall have no voting  power  whatsoever,  except as  otherwise  provided  by the
General Corporation Law of the State of Delaware ("Delaware Law"), and no Holder
of Class C Preferred Stock shall vote or otherwise participate in any proceeding
in which actions shall be taken by the Company or the shareholders thereof or be
entitled to notification as to any meeting of the shareholders.

         Notwithstanding  the above,  the  Company  shall  provide  Holder  with
notification  of any meeting of the  shareholders  regarding any major corporate
events  affecting  the  Company.  In the event of any taking by the Company of a
record of its shareholders  for the purpose of determining  shareholders who are
entitled to receive payment of any dividend or other distribution,  any right to
subscribe for, purchase or otherwise acquire any share of any class or any other
securities  or  property   (including  by  way  of  merger,   consolidation   or
reorganization),  or











to receive any other right, or for the purpose of determining  shareholders  who
are entitled to vote in connection  with any proposed sale,  lease or conveyance
of all or  substantially  all of the  assets  of the  Company,  or any  proposed
liquidation,  dissolution  or winding up of the Company,  the Company shall send
(by  certified  mail or overnight  courier) a notice to Holder,  in such form as
given to the other shareholders, at least ten (10) days prior to the record date
specified  therein,  of the date on which any such record is to be taken for the
purpose  of such  dividend,  distribution,  right  or other  event,  and a brief
statement  regarding  the amount and character of such  dividend,  distribution,
right or other event to the extent known at such time.

         To the extent  that under  Delaware  Law the vote of the Holders of the
Class C Preferred Stock,  voting separately as a class, is required to authorize
a given action of the Company, the affirmative vote or consent of the Holders of
at  least  two  thirds  (2/3)  of the  shares  of the  Class C  Preferred  Stock
represented  at a duly held  meeting  at which a quorum is present or by written
consent  of a  majority  of the  shares of Class C  Preferred  Stock  (except as
otherwise may be required under  Delaware Law) shall  constitute the approval of
such action by the class,  subject to Section 8 below.  To the extent that under
Delaware Law the Holders of the Class C Preferred  Stock are entitled to vote on
a matter with holders of Common Stock,  voting  together as one (1) class,  each
share of Class C Preferred Stock shall be entitled to a number of votes equal to
the number of shares of Common  Stock into which it is then  convertible  on the
record date for the taking of such vote of stockholders.  Holders of the Class C
Preferred Stock also shall be entitled to notice of all shareholder  meetings or
written  consents  with  respect to which they would be entitled to vote,  which
notice  would be provided  pursuant  to the  Company's  by-laws  and  applicable
statutes.

         Section 8. Protective Provision. So long as shares of Class C Preferred
Stock are  outstanding,  the  Company  shall not  without  first  obtaining  the
approval  (by vote or written  consent,  as  provided  by  Delaware  Law) of the
Holders of at least seventy-five percent (75%) of the then outstanding shares of
Class C Preferred  Stock,  and at least  seventy-five  percent (75%) of the then
outstanding Holders:

                  (a) alter or change the rights,  preferences  or privileges of
the Class C Preferred  Stock or any  securities  so as to affect  adversely  the
Class C Preferred Stock;

                  (b)  create  any  new  class  or  series  of  stock  having  a
preference  over or on parity with the Class C Preferred  Stock with  respect to
Distributions  (as  defined  in  Section  2 above) or  increase  the size of the
authorized number of Class C Preferred; or

                  (c) do any act or thing not authorized or contemplated by this
Designation which would result in taxation of the holders of shares of the Class
C Preferred  Stock under  Section 305 of the Internal  Revenue Code of 1986,  as
amended (or any comparable  provision of the Internal  Revenue Code as hereafter
from time to time amended).

         In the event Holders of at least seventy-five percent (75%) of the then
outstanding shares of Class C Preferred Stock and at least seventy-five  percent
(75%) of the then  outstanding  Holders  agree to allow the  Company to alter or
change the rights,  preferences or privileges of the shares of Class C Preferred
Stock,  pursuant to subsection (a) above,  so as to affect the Class C








Preferred Stock, then the Company will deliver notice of such approved change to
the Holders of the Class C Preferred Stock that did not agree to such alteration
or change (the "Dissenting Holders") and Dissenting Holders shall have the right
for a period  of  thirty  (30)  days to  convert  pursuant  to the terms of this
Certificate of Designation as they exist prior to such alteration or change,  or
continue to hold their shares of Class C Preferred Stock, as amended.

         Section 9. Status of Converted  Stock. In the event any shares of Class
C Preferred Stock shall be converted pursuant to Section 5 hereof, the shares so
converted  shall be  canceled,  shall  return to the  status of  authorized  but
unissued  Preferred Stock of no designated  series, and shall not be issuable by
the Company as Class C Preferred Stock.

         Section  10.  Preference  Rights.  Nothing  contained  herein  shall be
construed  to prevent the Board of Directors of the Company from issuing one (1)
or more series of Preferred Stock with dividend and/or  liquidation  preferences
junior to the  dividend  and  liquidation  preferences  of the Class C Preferred
Stock.

         Section 11.   [Intentionally Left Blank]

         Section 12.   Failure to Satisfy Conversions.

                  (a) Conversion Failure Payments. If, at any time, (x) a Holder
submits a Notice of Conversion  (or is deemed to submit such notice  pursuant to
Section  5(c)  hereof),  and the Company  fails for any reason to surrender to a
Common Courier for overnight (or 2 day, if overseas)  delivery to the Holder, on
or prior to the date that is one (1) trading day after the  Deadline  ("Delivery
Period")  for such  conversion,  such number of shares of Common  Stock to which
such Converting  Holder is entitled upon such conversion  (which shares shall be
listed,  authorized,  reserved,  registered,  and freely tradeable,  each to the
extent required in this Class C Certificate of  Designation,  the Certificate of
Designation of the Class B Preferred Stock,  the  Registration  Rights Agreement
between the Company and the Holder(s) and the Subscription Agreement between the
Company  and  the  Holder(s),   collectively   referred  to  as  the  "Governing
Agreements"),  or (y) the Company  provides  notice to Holder at any time of its
intention  not to issue  shares of Common  Stock upon  exercise by Holder of its
conversion   rights  in  accordance  with  the  terms  of  this  Certificate  of
Designation (each of (x) and (y) being a "Conversion Failure"), then the Company
shall pay to such Holder cash damages in an amount equal to the lower of:

                           (i) "Damages Amount" X "D" X .010, and
                           (ii)  the  highest   interest   rate   permitted   by
applicable law, where:

         "D"  means  the  number of days  beginning  the date of the  Conversion
Failure  through and  including  the Cure Date with  respect to such  Conversion
Failure;

         "Damages  Amount" means the Original Class C Issue Price for each share
of Class C Preferred  Stock subject to  Conversion  Failure plus all accrued and
unpaid Premium thereon as of the first day of the Conversion  Failure,  plus all
damage payments previously owed and unpaid.









         "Cure Date" means (i) with respect to a Conversion Failure described in
clause (x) of its definition, the date the Company effects the conversion of the
shares of Class C Preferred Stock submitted for conversion and (ii) with respect
to a Conversion Failure described in clause (y) of its definition,  the date the
Company  undertakes in writing to timely issue Common Stock in  satisfaction  of
all  conversions of Class C Preferred Stock in accordance with the terms of this
Certificate of Designation.

         The  payments  to which a Holder  shall be  entitled  pursuant  to this
Section are referred to herein as  "Conversion  Failure  Payments."  The parties
agree  that  the  damages  caused  by a breach  hereof  would  be  difficult  or
impossible to estimate accurately. Any accrued Conversion Failure Payments shall
be payable in cash by a  cashiers  check,  no later than ten (10) days after the
end of any month(s) for which such amounts accrue. In the event that the Company
has failed to pay any  Conversion  Failure  Payment  within five (5) days of the
date it is required to be paid, the Holder, at its option,  may elect to convert
all or any portion of such  accrued  Conversion  Failure  Payments,  at any time
prior to receipt of cash payment of such Conversion Failure Payment, into Common
Stock at a  conversion  price  equal to the  lesser of (i) the Fixed  Conversion
Price or (ii) the lowest  Conversion  Trading Price (as defined in the Company's
Class B Preferred Stock  Certificate of Designation) in effect during the period
beginning on the date of the Conversion  Failure  through the Cure Date for such
Conversion  Failure.  In the event a Holder elects to convert all or any portion
of the Conversion  Failure  Payments,  such Holder shall indicate on a Notice of
Conversion  such portion of the  Conversion  Failure  Payments which such Holder
elects  to so  convert  and such  conversion  shall  otherwise  be  effected  in
accordance with provisions of Section 5.

                  (b) Buy-In  Cure.  Unless a  Conversion  Failure  described in
clause (y) of Section  12(a) hereof has occurred  with respect to such a Holder,
if (i) the Company  fails for any reason to deliver  during the Delivery  Period
shares of Common  Stock to a Holder upon a  conversion  of the Class C Preferred
Stock  and  (ii) on the same  date or  subsequent  to the end of the  applicable
Delivery Period with respect to such conversion,  a Holder purchases (in an open
market  transaction or otherwise) shares of Common Stock to make delivery upon a
sale by a Holder of the shares of Common  Stock (the "Sold  Shares")  which such
Holder  anticipated  receiving  upon such  conversion (a "Buy-In"),  the Company
shall pay such Holder within two (2) business days following  receipt of written
notice of a claim  pursuant  to this  Section  12(b) (in  addition  to any other
remedies  available  to  Holder)  the  amount by which (x) such  Holder's  total
purchase price (including brokerage commission, if any) for the shares of Common
Stock so purchased exceeds (y) the net proceeds received by such Holder from the
sale of the Sold Shares.  For example,  if a Holder  purchases  shares of Common
Stock having a total purchase price of $11,000 to cover a Buy-In with respect to
shares of Common  Stock sold for  $10,000,  the Company  will be required to pay
such Holder $1,000. A Holder shall provide the Company written notification (and
trading records, if reasonably requested by the Company), indicating any amounts
payable to Holder pursuant to this Section 12.

                  (c)  Adjustment  to  Conversion  Price.  If a  Holder  has not
received  certificates  for all shares of Common Stock within three (3) business
days  following  the  expiration  of  the  Delivery  Period  with  respect  to a
conversion  of any portion of any of such Holder's  Class C Preferred  Stock for
any reason,  then the Fixed  Conversion  Price  applicable for  calculating  the










number of Common  Shares to which  Holder is entitled  upon  conversion  of such
portion of the Class C  Preferred  Stock shall be reduced by the amount by which
the Conversion Trading Price in effect on the Conversion Date exceeds the lowest
Conversion  Trading  Price  in  effect  during  the  period  beginning  on,  and
including,  such  Conversion  Date  through  and  including  the Cure  Date.  In
addition,  if there shall occur a  Conversion  Failure of the type  described in
clause (y) of Section 12(a), then the Fixed Conversion Price with respect to any
conversion of Class C Preferred Stock thereafter shall be the lowest  Conversion
Trading  Price in  effect  at any time  during  the  period  beginning  on,  and
including,  the date of the occurrence of such  Conversion  Failure  through and
including the Cure Date. The Conversion  Trading Price and the Fixed  Conversion
Price shall thereafter be subject to further adjustment for any events described
in Section 5(d).

         Section 13.       Events of Default.

                  (a) Holder's Option to Demand Prepayment.  Upon the occurrence
of an Event of Default (as herein defined), the Company shall, unless a specific
cash payment is already  specified in the Governing  Agreements  with respect to
such default,  pay the Holders  (beginning  after the specified  cure period) an
amount  equal to  three  percent  (3%) per  month  of the  aggregate  amount  of
outstanding Class C Preferred Stock held by the Holder, accruing daily until the
Event of Default is cured or until the Class C Preferred  Stock is prepaid under
this Section,  payable in cash by a cashiers  check, no later than five (5) days
after  the  end  of  any  month(s)  for  which  such  amounts  accrue  ("Default
Payments").  In addition,  each Holder shall have the right to elect at any time
and from time to time prior to the cure by the  Company of such Event of Default
to have all or any portion of such Holder's then  outstanding  Class C Preferred
Stock prepaid by the Company for an amount equal to the Holder Demand Prepayment
Amount (as herein defined):

                           (i) The right of a Holder to elect  prepayment  shall
be exercisable  upon the occurrence of an Event of Default by such Holder in its
sole discretion by delivery of a Demand Prepayment Notice (as herein defined) in
accordance with the procedures set forth in this Section 13. Notwithstanding the
exercise of such  right,  the Holder  shall be  entitled  to exercise  all other
rights and  remedies  available  under the  provisions  of this  Certificate  of
Designation and at law or in equity.

                           (ii) A Holder shall effect each demand for prepayment
under this  Section 13 by giving at least five (5) business  days prior  written
notice  (the  "Demand  Prepayment  Notice")  of the date which the Holder  shall
specify and upon which such  prepayment is to become  effective (the  "Effective
Date of Demand  of  Prepayment"),  the  Class C  Preferred  Stock  selected  for
prepayment and the Holder Demand Prepayment Amount to the Company at the address
and facsimile number provided in the stock records of the Company,  which Demand
Prepayment  Notice  shall be deemed to have been  delivered  on the business day
after  the date of  transmission  of  Holder's  facsimile  (with a copy  sent by
overnight courier to the Company) of such notice.

                           (iii) The Holder  Demand  Prepayment  Amount shall be
paid to a Holder whose Class C Preferred Stock is being prepaid within three (3)
business days following the 










Effective  Date of Demand of  Prepayment;  provided,  however,  that the Company
shall not be  obligated to deliver any portion of the Holder  Demand  Prepayment
Amount until one (1) business day following either the date on which the Class C
Preferred Stock being prepaid are delivered to the office of the Company, or the
date on which the Holder  notifies the Company that such Class C Preferred Stock
have been lost, stolen or destroyed and delivers the  documentation  required in
accordance with Section 5(b)(i) hereof.

                  (b)  Holder  Demand  Prepayment  Amount.  The  "Holder  Demand
Prepayment  Amount"  means the  greater of: (a) 1.3 times the Total Value of the
Class C  Preferred  Stock for which  demand is being  made,  through the date of
prepayment or (b) the product of (1) the highest price at which the Common Stock
is traded on the date of the Event of  Default  (or on the most  recent  trading
date for the  Common  Stock if the  Common  Stock is not  traded  on such  date)
divided  by the Fixed  Conversion  Price (or the  Conversion  Trading  Price) in
effect as of the date of the Event of Default,  whichever is less),  and (2) the
Total Value through the date of prepayment,  where, "Total Value" shall mean the
Stated  Value of the Class C Preferred  Stock being  redeemed,  plus  liquidated
damages,  Conversion Failure Payments,  Late Registration Payments and any other
cash  payments then due from the Company and then unpaid,  where "Stated  Value"
shall mean the  Original  Class C Issue  Price (as defined in Section 1) of each
share of Class C Preferred Stock.

                  (c) Events of Default.  An "Event of Default" means any one of
the following:

                           (i) a material  failure by the Company to comply with
the Conversion Failure remedies described in Section 12 hereof;

                           (ii) a Share  Authorization  and Reservation  Failure
described in Section 11(b) of the Class B Certificate  of  Designation,  if such
Share  Authorization  and Reservation  Failure continues uncured for ninety (90)
days after the Authorization and Reservation  Trigger Date (for purposes of this
subsection (ii), a prepayment  demand may be made by a Holder only to the extent
that there is an  insufficient  number of shares of Common Stock  authorized and
reserved to effect  conversion of (a) all of such Holder's  outstanding  Class B
Preferred Stock, and (b) all Class C Preferred Stock issuable upon conversion of
such shares of Class B Preferred Stock, provided,  however, that Holder need not
actually  convert any shares of Class C Preferred Stock and use up its available
authorized  and  reserved  shares  of  Common  Stock  in order  to  demand  such
prepayment);

                           (iii)  (a) the  Company  has less  than the  required
number  of  shares   reserved  for  issuance  to  any  Holder  or  Holders  upon
conversions,  (b) the Company has shares of Common Stock authorized for issuance
upon conversion of the Preferred Stock which have not yet been reserved for such
issuance  ("Authorized But Not Yet Reserved Shares"),  and (c) the Company fails
to reserve  for  issuance to the Holders  the  Authorized  But Not Yet  Reserved
Shares within five (5) business days of the date they are authorized;

                           (iv) the Company  fails to pay any cash  payments due
to Holder under the terms of this Class C Certificate of Designation within five
(5) days after Holder has notified the Company, in writing, that such payment is
past due and that the Holder intends to declare an










"Event of Default" under this Section 13 if such payment is not made;

                           (v)  the  Company  fails  to  maintain  an  effective
registration  statement as required by the Registration Rights Agreement between
the Company and the Holder(s) (the "Registration Rights Agreement") except where
(A) such  failure  lasts no longer than seven (7)  consecutive  trading  days or
twenty one (21) days in any  twelve  (12) month  period,  or (B) the  Conversion
Shares may be sold immediately,  without volume limitation, without registration
under the Act, by virtue of Rule 144 or similar provisions;

                           (vi) for three (3) consecutive trading days or for an
aggregate  of ten (10)  trading  days in any nine (9) month  period,  the Common
Stock  (including any of the shares of Common Stock issuable upon  conversion of
the Class C  Preferred  Stock) is (i)  suspended  from  trading on any of Nasdaq
SmallCap,  NMS, NYSE,  AMEX or the OTC Bulletin Board, or (ii) is not listed and
qualified for trading on at least one of Nasdaq SmallCap, NMS, NYSE, AMEX or the
OTC Bulletin Board;

                           (vii) the Company fails,  and such failure  continues
uncured for three (3) business days after the Company has been notified  thereof
in writing by a Holder, to remove any restrictive  legend on any certificate for
any shares of Common  Stock  issued to a Holder upon  conversion  of any Class C
Preferred  Stock, as and when required by this  Certificate of Designation,  the
Subscription Agreement, between the Company and the Holder(s) (the "Subscription
Agreement") or the Registration Rights Agreement,  unless such legend removal is
prohibited by applicable law;

                           (viii)  the   Company   breaches,   and  such  breach
continues   uncured  for  three  (3)  business   days  (after  any  cure  period
specifically  set forth in the Governing  Agreements,  if applicable)  after the
Company  has been  notified  thereof  in writing  by a Holder,  any  significant
covenant  in or  other  material  term  or  condition  of any  of the  Governing
Agreements  (including,  without  limitation,  the failure to make any  required
liquidated  damage or other cash  payment  hereunder  or under the  Registration
Rights  Agreement),  provided that if any such breach expressly  provides a cure
period,  then such cure period shall apply and if such breach provides for money
damages in the applicable Governing Agreement,  and such money damages are being
timely  paid,  then such  breach  shall not  constitute  a  default  under  this
subsection unless such breach continues for sixty (60) days;

                           (ix) any  representation  or  warranty of the Company
made  herein or in any  agreement,  statement  or  certificate  given in writing
pursuant hereto or in connection herewith  (including,  without limitation,  the
Subscription  Agreement and Registration  Rights Agreement),  shall be knowingly
false or intentionally misleading in any material respect when made;

                           (x) the  Company  or any  subsidiary  of the  Company
shall  make an  assignment  for the  benefit of its  creditors,  or apply for or
consent to the  appointment of a receiver or trustee for it or for a substantial
part of its property or business, or such receiver or trustee shall otherwise be
appointed; or









                           (xi)  bankruptcy,   insolvency,   reorganization   or
liquidation proceedings or other proceedings for relief under any bankruptcy law
or any law for the  relief of debtors  shall be  instituted  by or  against  the
Company or any  subsidiary of the Company (and such  proceedings  shall continue
unstayed for thirty (30) days).

         (d) Failure to Pay  Damages  Amount.  If the  Company  fails to pay the
Holder Demand  Prepayment Amount within five (5) business days of its receipt of
a Demand Prepayment  Notice,  then such Holder shall have the right, at any time
and from time to time  prior to the  payment  of the  Holder  Demand  Prepayment
Amount, to require the Company,  upon written notice, to immediately convert (in
accordance  with the terms of Section 5) all or any portion of the Holder Demand
Prepayment  Amount,  into  shares of Common  Stock at the lower of (i) the Fixed
Conversion  Price or (ii) the then current  Conversion  Trading Price,  provided
that if the Company has not  delivered the full number of shares of Common Stock
issuable  upon such  conversion  which shares shall be listed,  registered,  and
freely  tradeable,  each to the extent  required  by the  Governing  Agreements,
within three (3) business days after the Company receives written notice of such
conversion,  the  Conversion  Trading  Price with respect to such Holder  Demand
Prepayment Amount shall thereafter be deemed to be the lowest Conversion Trading
Price in effect during the period  beginning on the date of the Event of Default
through the date on which the Company  delivers to the Holder the full number of
shares of Common  Stock  issuable  upon such  conversion,  which shares shall be
listed,  registered,  and freely  tradeable,  each to the extent required by the
Governing  Agreements.  In the event the  Company is not able to pay all amounts
due and payable  with respect to all Class C Preferred  Stock  subject to Holder
Demand  Prepayment  Notices,  the Company shall pay the Holders such amounts pro
rata,  based on the total amounts  payable to such Holder  relative to the total
amounts payable to all Holders.

         Section  14.  Remedies,  Other  Obligations,  Breaches  and  Injunctive
Relief.  The  remedies  provided in this  Certificate  of  Designation  shall be
cumulative and in addition to all other remedies available under the Certificate
of Designation at law or in equity  (including a decree of specific  performance
and/or other  injunctive  relief),  no remedy contained herein shall be deemed a
waiver of compliance  with the provision  giving rise to such remedy and nothing
herein shall limit a Holder's  right to pursue actual damages for any failure by
the Company to comply with the terms of this Certificate of Designation. Amounts
set forth or provided for herein with respect to  payments,  conversion  and the
like (and the  computation  thereof)  shall be the amounts to be received by the
holder hereof and shall not, except as expressly  provided herein, be subject to
any other  obligation of the Company (or the performance  thereof).  The Company
acknowledges  that  a  breach  by it of its  obligations  hereunder  will  cause
irreparable  harm to the Holders of Class C Preferred  Stock and that the remedy
at law for any such breach may be inadequate.  The Company  therefore agrees, in
the event of any such  breach  or  threatened  breach,  the  Holders  of Class C
Preferred Stock shall be entitled,  in addition to all other available remedies,
to an  injunction  restraining  any  breach,  without the  necessity  of showing
economic loss and without any bond or other security being required.

         Section 15. Assignability.  The Class C Preferred Stock shall be freely
assignable by a Holder subject to applicable  securities  laws and any agreement
to the contrary signed by such Holder.




                                                                    EXHIBIT 10.1


                                 AMENDMENT NO. 1
                                       TO
                                LICENSE AGREEMENT
                                -----------------


    AMENDMENT NO. 1 TO LICENSE  AGREEMENT made as of this 12th day of June, 1997
by and between YALE UNIVERSITY,  a corporation  organized and existing under and
by virtue of a charter  granted by the general  assembly of the Colony and State
of  Connecticut  and  located  in New  Haven,  Connecticut  ("YALE"),  and  VION
PHARMACEUTICALS, INC. (f/k/a OncoRx, Inc.), a corporation organized and existing
under the laws of the State of Delaware and with  principal  offices  located in
New Haven, Connecticut ("LICENSEE").

                              W I T N E S S E T H:

         WHEREAS,  YALE and  LICENSEE are parties to a License  Agreement  dated
December 15, 1995, under which YALE exclusively licensed to LICENSEE a series of
YALE owned inventions relating to potential gene therapy vectors; and

         WHEREAS,  YALE and  LICENSEE  wish to amend the License  Agreement,  as
amended,  to reduce the earned royalties  payable on SUBLICENSE  INCOME,  and to
make certain other changes to the License Agreement;

         WHEREAS, LICENSEE will issue to YALE certain shares of its Common Stock
in consideration therefor;

     NOW,  THEREFORE,  in  consideration  of the  premises  and  of  the  mutual
covenants  herein  contained  and for  other  good and  valuable  consideration,
receipt  of which is hereby  acknowledged,  YALE and  LICENSEE  hereby  agree as
follows:

         1.  LICENSEE  shall issue to YALE on the date hereof  50,000  shares of
Common Stock, $.01 par value of LICENSEE. LICENSEE agrees to include such shares
in the next registration statement filed (other than a registration statement on
Form S-8 or any  similar  form) by LICENSEE  with the  Securities  and  Exchange
Commission.

         2.  Section  1.5 of the  License  Agreement  shall  be  deleted  in its
entirety and shall now read as follows:



                                      -1-





         "1.5  "SUBLICENSE  INCOME"  shall  mean the gross  amount  received  by
LICENSEE, directly or indirectly, for or on account of sublicenses of any of the
rights granted  hereunder,  without deduction of any kind, except deductions for
taxes in the nature of sales,  use,  ad valorem  and  similar  taxes;  provided,
however, SUBLICENSE INCOME shall not in any case include any amounts received by
LICENSEE,  directly or indirectly, as payments for work which has been performed
or  which  is to be  performed  by  LICENSEE  at  the  specific  direction  of a
SUBLICENSEE,  such payments not being creditable against future royalty payments
and provided,  further, that research or clinical milestone payments,  which are
made pursuant to  collaboration  or similar  arrangements  with other  companies
shall not constitute SUBLICENSE INCOME for purposes hereof."

         3.  Section  1.6 of the  License  Agreement  shall  be  deleted  in its
entirety and shall now read as follows:

         "1.6  "EARNED  ROYALTIES"  shall  mean  royalties  paid or  payable  by
LICENSEE to YALE  determined  with respect to NET SALES,  SUBLICENSE  INCOME and
MILESTONE INCOME."

         4. A new Section 1.10 shall be added to the License Agreement and shall
read as follows:

         "1.10  "MILESTONE  INCOME"  shall  mean the gross  amount  received  by
LICENSEE,  directly  or  indirectly,  for or on account of  research or clinical
milestones,  which are made pursuant to  collaboration  or similar  arrangements
with other companies."

         5.  Section  4.2 of the  License  Agreement  shall  be  deleted  in its
entirety and shall now read as follows:

         "4.2 In addition,  LICENSEE  shall pay to YALE EARNED  ROYALTIES of NET
SALES of LICENSED  PRODUCTS,  the selling of which would, in the absence of this
Agreement, infringe a valid claim in the LICENSED PATENTS, of Seven percent (7%)
of NET SALES, Twenty percent (20%) of SUBLICENSE INCOME and Twenty percent (20%)
of MILESTONE INCOME."

         6.  Article  XIV of the  License  Agreement  shall  be  deleted  in its
entirety and shall now read as follows:

                              "ARTICLE XIV NOTICES

     Any  notice  required  by this  Agreement  shall be sent by  Registered  or
Certified U.S. Mail, or by a nationally recognized 



                                      -2-





overnight  delivery  service or by facsimile  with a copy sent by  Registered or
Certified  U.S.  Mail,  and shall be deemed  delivered if sent to the  following
addresses  of the  respective  parties or such other  address as is furnished by
proper notice to the other party:

TO YALE:                                          TO VION PHARMACEUTICALS, INC.:
Director                                          Vion Pharmaceuticals, Inc.
Office of Cooperative Research                    4 Science Park
Yale University                                   New Haven, CT 06511
 Suite 401                                        Attn: President and CEO
246 Church St.
New Haven, CT 06510

         7.  Except as  expressly  amended  hereby,  the License  Agreement,  as
amended to date, remains unchanged and in full force and effect.


     IN WITNESS  WHEREOF,  the parties  hereto have caused this  Agreement to be
executed in duplicate originals by their duly authorized representatives.

YALE UNIVERSITY                             VION PHARMACEUTICALS, INC.



By:/s/                                      By:/s/
Name:     Gregory E. Gardiner               Name: Thomas Mizelle
Title: Director, OCR                        Title:  Vice President Operations


                                      -3-






                                                                    EXHIBIT 10.2

                                 AMENDMENT NO. 2
                                       TO
                                LICENSE AGREEMENT


    AMENDMENT NO. 2 TO LICENSE  AGREEMENT made as of this 12th day of June, 1997
by and between YALE UNIVERSITY,  a corporation  organized and existing under and
by virtue of a charter  granted by the general  assembly of the Colony and State
of  Connecticut  and  located  in New  Haven,  Connecticut  ("YALE"),  and  VION
PHARMACEUTICALS,  INC. (f/k/a OncoRx Inc.), a corporation organized and existing
under the laws of the State of Delaware and with  principal  offices  located in
New Haven, Connecticut ("LICENSEE").

                              W I T N E S S E T H:

         WHEREAS,  YALE and  LICENSEE are parties to a License  Agreement  dated
August 31, 1994, under which YALE  exclusively  licensed to LICENSEE a series of
YALE owned inventions relating to potential anti-tumor and anti-viral compounds;
and

         WHEREAS, YALE and LICENSEE amended the License Agreement pursuant to an
Agreement  dated  November 15, 1995 to make an additional  patent subject to the
License Agreement and provide the terms of compensation to YALE therefor; and

         WHEREAS,  YALE and  LICENSEE  wish to amend the License  Agreement,  as
amended,  to reduce the earned royalties  payable on Sublicense  Income,  and to
make certain other changes to the License Agreement;

         WHEREAS, LICENSEE will issue to YALE certain shares of its Common Stock
in consideration therefor;

         NOW,  THEREFORE,  in  consideration  of the  premises and of the mutual
covenants  herein  contained  and for  other  good and  valuable  consideration,
receipt  of which is hereby  acknowledged,  YALE and  LICENSEE  hereby  agree as
follows:

         1. LICENSEE  shall issue to YALE on the date hereof  100,000  shares of
Common Stock, $.01 par value of LICENSEE. LICENSEE agrees to include such shares
in the next registration statement filed (other than a registration statement on
Form S-8 or any  similar  form) by LICENSEE  with the  Securities  and  Exchange
Commission.



                                      -1-





         2.  Section  1.6 of the  License  Agreement  shall  be  deleted  in its
entirety and shall now read as follows:

         "1.6  "SUBLICENSE  INCOME"  shall  mean the gross  amount  received  by
LICENSEE, directly or indirectly, for or on account of sublicenses of any of the
rights  granted  hereunder,  without  deduction  of any kind except taxes in the
nature  of  sales,  use,  ad  valorem  and  similar  taxes;  provided,  however,
SUBLICENSE  INCOME  shall  not in any  case  include  any  amounts  received  by
LICENSEE,  directly or indirectly, as payments for work which has been performed
or  which  is to be  performed  by  LICENSEE  at  the  specific  direction  of a
SUBLICENSEE,  such payments not being creditable against future royalty payments
and provided,  further, that research or clinical milestone payments,  which are
made pursuant to  collaboration  or similar  arrangements  with other  companies
shall not constitute SUBLICENSE INCOME for purposes hereof."

         3. A new Section 1.11 shall be added to the License Agreement and shall
read as follows:

         "1.11  "MILESTONE  INCOME"  shall  mean the gross  amount  received  by
LICENSEE,  directly  or  indirectly,  for or on account of  research or clinical
milestones,  which are made pursuant to  collaboration  or similar  arrangements
with other companies."

         4.  Section  4.3 of the  License  Agreement  shall  be  deleted  in its
entirety and shall now read as follows:

         "4.3 In  addition,  LICENSEE  shall  pay to YALE  EARNED  ROYALTIES  as
follows:

      A.  For Licensed Products Shown in Exhibit B:
Four percent (4%) of NET SALES of One Hundred  Million per year or less and Five
Percent (5%) of NET SALES  greater than One Hundred  Million per year and Twenty
per cent (20%) of SUBLICENSE INCOME;

      B.  For Licensed Products Shown in Exhibit C:
Five percent  (5%) of NET SALES of One Hundred  Million per year or less and Six
percent (6%) of NET SALES  greater than One Hundred  Million per year and Twenty
percent (20%) of SUBLICENSE INCOME; and/or

      C. For Licensed  Products  shown on either  Exhibit B or Exhibit C: Twenty
percent (20%) of MILESTONE INCOME."



                                      -2-





         5.  Article  XIV of the  License  Agreement  shall  be  deleted  in its
entirety and shall now read as follows:

                              "ARTICLE XIV NOTICES

     Any  notice  required  by this  Agreement  shall be sent by  Registered  or
Certified U.S. Mail, or by a nationally recognized overnight delivery service or
by facsimile with a copy sent by Registered or Certified U.S. Mail, and shall be
deemed delivered if sent to the following addresses of the respective parties or
such other address as is furnished by proper notice to the other party:

TO YALE:                                         TO VION PHARMACEUTICALS, INC.:
Director                                         Vion Pharmaceuticals, Inc.
Office of Cooperative Research                   4 Science Park
Yale University                                  New Haven, CT 06511
 Suite 401                                       Attn: President and CEO
246 Church St.
New Haven, Ct 06510

         6.  Except as  expressly  amended  hereby,  the License  Agreement,  as
amended to date, remains unchanged and in full force and effect.


     IN WITNESS  WHEREOF,  the parties  hereto have caused this  Agreement to be
executed in duplicate originals by their duly authorized representatives.

YALE UNIVERSITY                     VION PHARMACEUTICALS, INC.



By:/s/                              By:/s/
Name: Gregory E. Gardiner           Name: Thomas Mizelle
Title: Director, OCR                Title: Vice President Operations




                                      -3-


<TABLE> <S> <C>


<ARTICLE>                     5
       
<S>                             <C>
<PERIOD-TYPE>                   9-Mos
<FISCAL-YEAR-END>                              Dec-31-1997
<PERIOD-START>                                 Jan-01-1997
<PERIOD-END>                                   Sep-30-1997
<CASH>                                         4,409,081
<SECURITIES>                                   1,065,234
<RECEIVABLES>                                  0
<ALLOWANCES>                                   0
<INVENTORY>                                    0
<CURRENT-ASSETS>                               5,542,033
<PP&E>                                         1,323,683
<DEPRECIATION>                                 0
<TOTAL-ASSETS>                                 7,213,320
<CURRENT-LIABILITIES>                          617,439
<BONDS>                                        0
                          0
                                    9,512
<COMMON>                                       87,308
<OTHER-SE>                                     6,234,741
<TOTAL-LIABILITY-AND-EQUITY>                   7,213,320
<SALES>                                        0
<TOTAL-REVENUES>                               48,221
<CGS>                                          0
<TOTAL-COSTS>                                  0
<OTHER-EXPENSES>                               8,122,383
<LOSS-PROVISION>                               0
<INTEREST-EXPENSE>                             31,498
<INCOME-PRETAX>                                (7,867,478)
<INCOME-TAX>                                   0
<INCOME-CONTINUING>                            (7,867,478)
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                                   (7,867,478)
<EPS-PRIMARY>                                  (.90)
<EPS-DILUTED>                                  (.90)
        


</TABLE>


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