GENTA INCORPORATED /DE/
PRE 14C, 1999-04-01
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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                            SCHEDULE 14C INFORMATION

 Information Statement Pursuant to Section 14(c) of the Securities Exchange Act
                                    of 1934

                           Check the appropriate box:

                      [X] Preliminary Information Statement

[_]  Confidential, for Use of the Commission Only (as permitted by Rule
     14c-5(d)(2))

                      [_] Definitive Information Statement

                               GENTA INCORPORATED
                (Name of Registrant As Specified In Its Charter)


               Payment of Filing Fee (Check the appropriate box):

                              [X] No fee required.

             [_] Fee computed on table below per Exchange Act Rules
                               14c-5(g) and 0-11 .

     1)   Title of each class of securities to which transaction applies:


     2)   Aggregate number of securities to which transaction applies:

     3)   Per unit price or other underlying value of transaction computed
          pursuant to Exchange Act Rule 0-11 (Set forth the amount on which the
          filing fee is calculated and state how it was determined):

     4)   Proposed maximum aggregate value of transaction:

     5)   Total fee paid:


               [_] Fee paid previously with preliminary materials.

     [_]  Check box if any part of the fee is offset as provided by Exchange Act
          Rule 0-11(a)(2) and identify the filing for which the offsetting fee
          was paid previously. Identify the previous filing by registration
          statement number, or the Form or Schedule and the date of its filing.

                           1) Amount Previously Paid:

                2) Form, Schedule or Registration Statement No.:

                                3) Filing Party:

                                 4) Date Filed:


<PAGE>


                               GENTA INCORPORATED

                              INFORMATION STATEMENT


General

     By written consent dated as of March 5, 1999 (the "Written Consent"),
certain holders of common stock, par value $.001 per share, of Genta
Incorporated (the "Common Stock") and of Series D convertible preferred stock,
par value $.001 per share, of Genta (the "Series D Preferred Stock")
constituting a majority of the aggregate voting power of the outstanding shares
of Common Stock and Series D Preferred Stock, authorized the amendment of
Genta's Restated Certificate of Incorporation, (the "Restated Certificate of
Incorporation"). The purpose of this amendment is to modify certain provisions
relating to the Series A convertible preferred stock, par value $.001 per share,
of Genta (the "Series A Preferred Stock").

     Holders of more than two-thirds of the outstanding shares of Series A
Preferred Stock have also, by means of a written consent dated as of March 5,
1999, authorized this amendment of the Restated Certificate of Incorporation.
These holders then owned, in addition to their shares of Series A Preferred
Stock, shares of Common Stock and Series D Preferred Stock constituting 39.7% of
the aggregate voting power of the outstanding shares of Common Stock and Series
D Preferred Stock.

     By unanimous written consent dated as of March 5, 1999 (the "Record Date"),
the Board has approved this amendment of the Restated Certificate of
Incorporation, and has complied with Section 242 of the Delaware General
Corporation Law. Genta intends anytime 20 days after the distribution of this
Information Statement to file with the Secretary of State of the State of
Delaware a Certificate of Amendment in the form attached as Exhibit A (the
"Certificate of Amendment") in order to effect this amendment of the Restated
Certificate of Incorporation. This Information Statement was distributed on
April __, 1999.

     In addition, on March 19, 1999, Genta, its wholly-owned subsidiary, JBL
Scientific Incorporated ("JBL"), and JBL Acquisition Corp. (the "Buyer"), a
wholly-owned subsidiary of Promega Corporation ("Promega"), entered into an
Asset Purchase Agreement providing for the sale by JBL of substantially all its
assets to the Buyer. By means of the Written Consent, certain holders of Common
Stock and of Series D Preferred Stock constituting a majority of the aggregate
voting power of the outstanding shares of Common Stock and Series D Preferred
Stock authorized Genta to sell all or any part of the assets of JBL, under such
terms and conditions and for such consideration as Genta's Board of Directors
deems expedient and for the best interests of Genta, on condition that the cash
consideration received at closing not be less than $3,000,000. Genta believes
that under Delaware law it is not required to obtain stockholder consent to this
transaction. Genta nevertheless obtained stockholder consent as the Buyer made
it a condition precedent to the closing of this transaction that it be
authorized by Genta's stockholders.


<PAGE>


     Pursuant to Rule 14c-2 promulgated under Section 14 of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), Genta is furnishing this
Information Statement to those holders of shares of Common Stock and Series D
Preferred Stock who did not sign the Written Consent. Set forth below is certain
information that Rule 14c-2 requires be included in this Information Statement.

     WE ARE NOT ASKING YOU FOR A PROXY AND YOU ARE REQUESTED NOT TO SEND US A
PROXY.

Voting Securities and Principal Holders Thereof

     As of the Record Date, there were 13,773,782 shares of Common Stock and
155,317 shares of Series D Preferred Stock outstanding. Each holder of Common
Stock is entitled to one vote per share of Common Stock. The Series D Preferred
Stock votes with the Common Stock on an as-converted basis, and on the Record
Date each share of Series D Preferred Stock was entitled to 105.96 votes,
meaning that the Series D Preferred Stock as a whole was entitled to 16,457,389
votes.

     The following table sets forth, as of the Record Date, the number of shares
of Common Stock, Series D Preferred Stock, and Series A Preferred Stock, and the
percentage of each of those classes of stock, beneficially owned by the
following:

o    each person known to Genta (based solely on Schedules 13D or 13G filed with
     the Securities and Exchange Commission (the "Commission")) to be the
     beneficial owner of more than 5% of the Common Stock and the Series D
     Preferred Stock;

o    each person known to Genta to be the beneficial owner of more than 5% of
     the Series A Preferred Stock;

o    each director of Genta or nominee for director;

o    all directors and executive officers of Genta as a group (based upon
     information furnished by those persons).

     Note that under the rules of the Commission, a person is deemed to be a
beneficial owner of a security if that person has or shares the power to vote or
direct the voting of that security or the power to dispose of or to direct the
disposition of that security. In general, a person is also deemed to be a
beneficial owner of any securities of which that person has the right to acquire
beneficial ownership within 60 days. Accordingly, more than one person may be
deemed to be a beneficial owner of the same securities. All options, warrants or
other derivatives listed below were exercisable within 60 days of the Record
Date.


                                        2


<PAGE>




<TABLE>
<CAPTION>
                                                      Common Stock                                 Series D Preferred Stock         
                                                      ------------                                 ------------------------         

Name and Address of                   Amount and Nature of      Percent of Class        Amount and Nature of      Percent of Class  
Beneficial Owner                     Beneficial Ownership(1)                           Beneficial Ownership(1)                      

<S>                                      <C>                           <C>                     <C>                      <C>         
CERTAIN BENEFICIAL
HOLDERS;

Lindsay A. Rosenwald, M.D.               23,271,443 (2)                69.7%(3)                102,247(2)               57.4%       
787 Seventh Avenue, 48th Floor                                                                                                      
New York, NY  10019                                                                                                                 
                                                                                                                                    
Paramount Capital Asset                  20,405,050 (4)                66.9%(3)                 76,415(4)               50.2%       
Management, Inc.                                                                                                                    
787 Seventh Avenue                                                                                                                  
New York, NY  10019                                                                                                                 
                                                                                                                                    
United Congregations Mesora               1,109,600 (5)                 7.3%                    10,000(5)                6.6%       
c/o Aetna Realty                                                                                                                    
1 State Street Plaza                                                                                                                
New York, NY  10004                                                                                                                 
Attn:  Chana Adelstein                                                                                                              
                                                                                                                                    
Bristol Rittenthouse Investments LP                                                                                                 
c/o Arista Group                                                                                                                    
712 5th Avenue, 23rd Fl.                                                                                                            
New York, NY  1009-4008                                                                                                             
                                                                                                                                    
MANAGEMENT;                                                                                                                         
                                                                                                                                    
Michael S. Weiss                            675,064 (6)                 5.1%                     6,084(6)                3.9%       
                                                                                                                                    
Robert E. Klem, Ph.D.                        28,711 (7)                 0.2%                         0                    .0%       
                                                                                                                                    
Lawrence J. Kessel, M.D.                     81,523 (8)                 0.5%                       250(8)                0.2%       
                                                                                                                                    
Peter Salomon, M.D.                          37,809 (9)                 0.3%                         0                    .0%       
                                                                                                                                    
Glenn L. Cooper, M.D.                       147,658 (10)                1.1%                         0                    .0%       

<CAPTION>
                                                      Series A Preferred Stock
                                                      ------------------------

Name and Address of                        Amount and Nature of          Percent of
Beneficial Owner                           Beneficial Ownership(1)          Class

<S>                                                 <C>                    <C>     
CERTAIN BENEFICIAL
HOLDERS;

Lindsay A. Rosenwald, M.D.                          250,800(2)             57.6%(2)
787 Seventh Avenue, 48th Floor                                        
New York, NY  10019                                                   
                                                                      
Paramount Capital Asset                             250,800(4)             57.6%(4)
Management, Inc.                                                      
787 Seventh Avenue                                                    
New York, NY  10019                                                   
                                                                      
United Congregations Mesora                                           
c/o Aetna Realty                                                      
1 State Street Plaza                                                  
New York, NY  10004                                                   
Attn:  Chana Adelstein                                                
                                                     53,800                12.4%
Bristol Rittenthouse Investments LP                               
c/o Arista Group                                
712 5th Avenue, 23rd Fl.                        
New York, NY  1009-4008                         
                                                
MANAGEMENT;                                     
                                                
Michael S. Weiss                                
                                                
Robert E. Klem, Ph.D.                           
                                                
Lawrence J. Kessel, M.D.                        
                                                
Peter Salomon, M.D.                             
                                                
Glenn L. Cooper, M.D.                           
</TABLE>

                                        3


<PAGE>


<TABLE>
<CAPTION>
                                                      Common Stock                                 Series D Preferred Stock         
                                                      ------------                                 ------------------------         

Name and Address of              Amount and Nature of           Percent of Class     Amount and Nature of      Percent of Class  
Beneficial Owner                 Beneficial Ownership(1)                             Beneficial Ownership(1)                      
<S>                                      <C>                           <C>                     <C>                      <C>         
Donald G. Drapkin                   295,302 (11)                        2.3%                   0                       .0%


Kenneth G. Kasses, Ph.D.            978,365 (12)                        7.1%                   0                       .0%

Bobby W. Sandage, Jr., Ph.D.        147,658 (13)                        1.1%                   0                       .0%

Andrew J. Stein                      32,809 (14)                         .3%                   0                       .0%

Harlan J. Wakoff                     32,809 (15)                         .3%                   0                       .0%


All directors and executive 
officers as a                     2,436,734                            11.8%               6,334                      4.1%
group (10 persons)

<CAPTION>
                                                      Series A Preferred Stock
                                                      ------------------------

Name and Address of                        Amount and Nature of          Percent of
Beneficial Owner                           Beneficial Ownership(1)          Class


<S>                                                 <C>                    <C>     
Donald G. Drapkin           
                            
                            
Kenneth G. Kasses, Ph.D.    
                            
Bobby W. Sandage, Jr., Ph.D.
                            
Andrew J. Stein             
                            
Harlan J. Wakoff            
                            
                            
All directors and executive 
officers as a               
group (10 persons)          
</TABLE>

                                        4


<PAGE>



(1)  The number of shares beneficially owned is determined under rules
     promulgated by the Commission, and the information is not necessarily
     indicative of beneficial ownership for any other purpose. Under those
     rules, beneficial ownership includes any shares as to which the individual
     has sole or shared voting power or investment power and also any shares
     which the individual has the right to acquire within 60 days of March 5,
     1999, through the exercise or conversion of any stock option, convertible
     security, warrant or other right. The inclusion herein of those shares,
     however, does not constitute an admission that the named stockholder is a
     direct or indirect beneficial owner of those shares. Unless otherwise
     indicated, each person or entity named in the table has sole voting power
     and investment power (or shares that power with that person's spouse) with
     respect to all shares of capital stock listed as owned by that person or
     entity. The Common Stock represented here includes the Common Stock that
     the beneficial holders would directly possess if they converted their
     Series D Preferred Stock holdings, set forth under the "Series D Preferred
     Stock" caption.

(2)  Dr. Rosenwald may be deemed to have shared voting and investment power over
     the 20,405,050 shares of Common Stock, 250,800 shares of Series A Preferred
     Stock and 76,415 shares of Series D Preferred Stock, that may be deemed to
     be beneficially owned by Paramount Capital Asset Management, Inc.
     ("Paramount"), of which Dr. Rosenwald is the sole stockholder. See Footnote
     4 below. In addition, Dr. Rosenwald may be deemed to have sole voting and
     investment power over approximately 2,866,393 shares of Common Stock that
     he may be deemed beneficially to own, consisting of approximately 1,951,801
     shares of Common Stock issuable upon conversion of 18,420 shares of Series
     D Preferred Stock, which are themselves issuable upon exercise of warrants,
     92,101 shares of Common Stock issuable upon exercise of warrants, which are
     themselves issuable upon exercise of warrants, 785,429 shares of Common
     Stock issuable upon conversion of 7,412 shares of Series D Preferred Stock,
     which are themselves issuable upon exercise of warrants, and 37,062 shares
     of Common Stock issuable upon exercise of warrants, which are themselves
     issuable upon exercise of warrants. Dr. Rosenwald may be deemed to have
     sole voting and investment power over the approximately 25,832 shares of
     Series D Preferred Stock issuable upon exercise of warrants that are listed
     in the preceding sentence.

(3)  The Series D Preferred Stock is entitled to vote with the Common Stock on
     all matters submitted to a vote of Genta stockholders. Dr. Rosenwald may be
     deemed beneficially to own (within the meaning of Rule 13d-3 under the
     Exchange Act) 55.7% of the aggregate voting power of the outstanding shares
     of Common Stock and Series D Preferred Stock. Similarly, Paramount may be
     deemed beneficially to own 52.4% of the aggregate voting power of the
     outstanding shares of Common Stock and Series D Preferred Stock.

(4)  Paramount may be deemed to have shared voting and investment power over the
     6,715,008 and 13,690,042 shares of Common Stock, and 70,100 and 180,700
     shares of Series A Preferred Stock, respectively, which may be deemed to be
     beneficially owned by The Aries Domestic Fund, L.P. (the "Aries Domestic
     Fund"), a limited partnership, and The Aries Fund, a Cayman Islands Trust
     (the "Aries Trust" and, together with the Aries Domestic Fund, the "Aries
     Funds"), for which Paramount is the General Partner and Investment Advisor,
     respectively. As of the Record Date, Paramount owns beneficially the
     following shares of Common Stock held by Aries Trust: 2,915,292 shares of
     Common Stock; 1,311,004 shares of Common Stock issuable upon conversion of
     180,700 shares of Series A Preferred Stock; 5,194,172 shares of Common
     Stock issuable upon conversion of 49,020 shares of Series D Preferred
     Stock; and 4,269,574 shares of Common Stock issuable upon the exercise of
     warrants. Paramount owns beneficially the following shares of Common Stock
     held by Aries Domestic Fund: 1,110,599 shares of Common Stock; 508,585
     shares of Common Stock issuable upon conversion of 70,100 shares of Series
     A Preferred Stock; 2,796,821 shares of Common Stock issuable upon
     conversion of 26,395 shares of Series D Preferred Stock; and 2,299,002
     shares of Common Stock issuable upon exercise of warrants. Paramount may
     also be deemed the beneficial owner of the 26,395 shares of Series D
     Preferred Stock held by Aries Domestic Fund and the 49,020 shares of Series
     D Preferred Stock held by Aries Trust, the 161,000 shares of Series A
     Preferred Stock held by Aries Trust.

(5)  United Congregations Mesora owns beneficially 10,000 shares of Series D
     Preferred Stock (which are convertible into approximately 1,059,600 shares
     of Common Stock) and Class D Warrants to purchase up to 50,000 shares of
     Common Stock. This information is derived exclusively from United
     Congregations Mesora's Schedule 13D, as amended, dated July 11, 1997, filed
     with the Commission.

(6)  Mr. Weiss's beneficial ownership consists of approximately 15,894 shares of
     Common Stock issuable upon conversion of 150 shares of Series D Preferred
     Stock; 6,684 shares of Common Stock issuable upon exercise of warrants; and
     approximately 125,749 shares of Common Stock issuable upon conversion of
     approximately 1,187 shares of Series D Preferred Stock issuable upon
     exercise of warrants. In addition, Mr. Weiss may be deemed to be the
     beneficial owner of 503,002 shares of Common Stock issuable upon conversion
     of 4,747 shares of Series D Preferred Stock, issuable upon exercise of
     warrants, and 23,735 shares of Common issuable upon exercise of warrants,
     that are held by an entity of which Mr. Weiss is the managing member. Mr.
     Weiss's business address is 787 Seventh Avenue, New York, NY 10019.

(7)  Dr. Klem's beneficial ownership consists of 23,358 shares of Common Stock
     and options to purchase 5,353 shares of Common Stock. This includes 1,875
     shares held for Dr. Klem's children in trust, as to which Dr. Klem has
     shared voting and investment power, and 150 shares of Common Stock owned by
     Dr. Klem's wife, as to which he disclaims beneficial ownership.

(8)  Dr. Kessel's beneficial ownership consists of 250 shares of Series D
     Preferred Stock (which are convertible into approximately 26,490 shares of
     Common Stock), warrants to purchase up to 1,250 shares of Common Stock, and
     options to purchase up to 32,815 shares of Common Stock.


                                        5


<PAGE>


(9)  Dr. Salomon's beneficial ownership consists of 500 shares of Common Stock
     and options to purchase up to 32,809 shares of Common Stock.

(10) Dr. Cooper's beneficial ownership consists entirely of options to purchase
     Common Stock.

(11) Mr. Drapkin's beneficial ownership consist entirely of options to purchase
     Common Stock.

(12) Dr. Kasses's beneficial ownership consist entirely of options to purchase
     Common Stock.

(13) Dr. Sandage's beneficial ownership consist entirely of options to purchase
     Common Stock.

(14) Mr. Stein's beneficial ownership consist entirely of options to purchase
     Common Stock.

(15) Mr. Wakoff's beneficial ownership consist entirely of options to purchase
     Common Stock.

                                        6


<PAGE>


Modification of Securities

     The amendment to the Restated Certificate of Incorporation that is the
subject of the Amendment Written Consent would affect the rights of the Series A
Preferred Stock, of which there were 435,600 shares outstanding on the Record
Date. Set forth below is a summary of how the rights of the Series A Preferred
Stock would be affected. For a complete statement of the changes to the Series A
Preferred Stock, please refer to the Certificate of Amendment, which is attached
as Exhibit A, and the section of the Restated Certificate of Incorporation that
would be affected by the Certificate of Amendment, namely Article IV(B), the
text of which is set forth on Exhibit B. Except as otherwise noted, all
capitalized terms are as defined in the Restated Certificate of Incorporation.

Elimination of the Series A Preferred Stock Redemption Option Upon a Fundamental
Change

     Upon the occurrence of a Fundamental Change, the holders of shares of
Series A Preferred Stock would have the option of requiring Genta to repurchase
all shares of Series A Preferred Stock at the Redemption Price (currently $60.00
per share). Based on the number of shares of Series A Preferred Stock
outstanding on the Record Date, this could result in Genta being required to pay
the holders of Series A Preferred Stock a total of $26,136,000 in either stock
or (in certain circumstances) cash.

     Furthermore, if Genta is required to redeem the Series A Preferred Stock,
it would also be required (subject to certain conditions) to offer to redeem the
Series D Preferred Stock pari passu with the Series A Preferred Stock, and for
the same type of consideration. Upon the occurrence of a Fundamental Change,
Genta could, under certain circumstances, be required to pay the holders of
Series D Preferred Stock cash in the aggregate amount of approximately $23.1
million (not including an additional $5.7 million that would be payable upon
redemption of 40,395 shares of Series D Preferred Stock issuable upon exercise
of certain warrants).

     The Restated Certificate of Incorporation defines "Fundamental Change" as
the following:

o    a "person" or "Group," together with any affiliates, becoming the
     beneficial owner (as defined) of Voting Shares of Genta representing more
     than 60% of the total voting power of all outstanding Voting Shares of
     Genta (including any Voting Shares that are not then outstanding of which
     that person or Group is deemed the beneficial owner) (subject to certain
     exceptions), Voting Shares being defined in the Restated Certificate of
     Incorporation to include "all outstanding shares of any class or classes
     (however designated) of capital stock entitled to vote generally in the
     election of members of Board of Directors";

o    any consolidation of Genta with, or merger of Genta into, any other person,
     any merger of another person into Genta, or any sale, lease or transfer of
     all or substantially all of the assets of Genta to another person (subject
     to certain exceptions);

                                        7


<PAGE>


o    the sale, transfer or other disposition (or the entry into a commitment to
     sell, transfer or otherwise dispose) of all or any portion of the shares of
     Genta Jago, Genta's joint venture with Jagotec, held at any time by Genta
     (or the imposition of any material lien on those shares that is not removed
     within 30 days of imposition) and the sale (or functional equivalent of a
     sale) of all or substantially all of the assets of Genta Jago; or

o    the substantial reduction or elimination of a public market for the Common
     Stock as the result of repurchases, delisting or deregistration of the
     Common Stock or any corporate reorganization or recapitalization undertaken
     by Genta.

     The Certificate of Amendment would have the effect of eliminating the
concept of Fundamental Change, along with the related redemption option. This
would be a significant benefit to Genta. It is believed that this redemption
provision hampers Genta's ability to concentrate its resources on drug
development activities, as its current business plan provides. Furthermore, the
continued existence of this redemption provision could adversely affect Genta's
ability to obtain the financing necessary to enable Genta to pursue its
development objectives.

Modification of Conversion Price Adjustment Factors

     The Restated Certificate of Incorporation provides that upon issuance of
Additional Stock (as defined in Section 6(d)(vi) of the Restated Certificate of
Incorporation), the Conversion Price of the Series A Preferred Stock would be
reduced in accordance with a stated formula, ostensibly in order to compensate
the holders of Series A Preferred Stock for the dilution suffered by holders of
Series A Preferred Stock as a result of the issuance of Additional Stock. This
antidilution formula only takes into account (1) the Additional Stock, (2) the
Common Stock then outstanding, and (3) the Common Stock then issuable upon
conversion of Series A Preferred Stock, and ignores the Common Stock issuable
upon conversion or exercise of other securities.

     As amended by the Certificate of Amendment, the antidilution formula will
take into account the entire capitalization of Genta. It will, as a result,
conform more closely to the analogous provisions of the Series D Preferred
Stock. The antidilution formula in the Restated Certificate of Incorporation, as
amended by the Certificate of Amendment, will result in smaller reductions in
the Conversion Price of the Series A Preferred Stock, and, as a result, shares
of Series A Preferred Stock will be convertible into fewer shares of Common
Stock than would have been the case absent the amendment. Genta believes this
change to the antidilution formula will have a positive effect on Genta's
ability to raise funds to further its business objectives.

Modification of Antidilution Protections

     The Restated Certificate of Incorporation currently provides for the
following:


                                        8


<PAGE>


o    The Conversion Price of the Series A Preferred Stock is reduced whenever
     Genta is required to make an antidilution adjustment in favor of the
     holders of any other class of securities, with the apparent result that any
     event that triggers the antidilution provisions of both the Series A
     Preferred Stock and the Series D Preferred Stock would result in a second
     adjustment to the Conversion Price of the Series A Preferred Stock.

o    The Conversion Price of the Series A Preferred Stock is reduced upon the
     issuance or sale of Common Stock or securities convertible into or
     exchangeable for Common Stock for a consideration per share of $6.75 or
     less, as adjusted for stock splits, dividends and combinations. If Genta
     obtains additional equity financing at a time when the market price is
     below this amount, this provision could penalize Genta even if the
     additional equity is issued at market or above-market rates.

o    For antidilution purposes, certain specified issuances of securities
     (including Common Stock issued or issuable to employees, directors,
     consultants or advisors of Genta in limited amounts) do not constitute
     issuances of Additional Stock.

     As amended by the Certificate of Amendment, the Restated Certificate of
Incorporation will instead provide the following:

o    An antidilution adjustment favoring any other class of Genta securities,
     including the Series D Preferred Stock, will not cause a reduction in the
     Conversion Price of the Series A Preferred Stock.

o    A reduction in the Conversion Price of the Series A Preferred Stock only
     occurs upon the issuance or sale of Common Stock or securities convertible
     into or exchangeable for Common Stock at a price per share equal to or less
     than the Conversion Price in effect on the date of such issuance.

o    As is the case with the Series D Preferred Stock, issuance of Common Stock
     or options to purchase Common Stock to employees, directors, consultants or
     advisors will not constitute the issuance of Additional Stock, regardless
     of the size of the issuance, as long as the options are exercisable at
     prices no lower than the Closing Bid Price of the Common Stock (as defined
     in the Certificate of Amendment) as of the date of grant. In addition, the
     Certificate of Amendment clarifies that if an antidilution adjustment is
     made upon the issuance of securities convertible, exchangeable, or
     exercisable for Common Stock, no additional adjustment need be made upon
     the issuance of the underlying security.


                                        9

<PAGE>


     Genta believes that these changes, by putting the Series A Preferred Stock
on a more rational footing and further harmonizing the Series A Preferred Stock
and the Series D Preferred Stock, will also serve to enhance Genta's ability to
raise funds.


Dated:  March 31, 1999                    /s/ Kenneth G. Kasses, Ph.D.
                                          ----------------------------
                                          Chairman of the Board of Directors,
                                          President, and Chief Executive Officer


                                       10


<PAGE>


                                                                       Exhibit A


                            CERTIFICATE OF AMENDMENT
                                     OF THE
                      RESTATED CERTIFICATE OF INCORPORATION
                                       OF
                               GENTA INCORPORATED

                     Pursuant to Section 242 of the General
                    Corporation Law of the State of Delaware


     It is hereby certified that:

     1. Genta Incorporated (the "Corporation") is a corporation formed under the
laws of the State of Delaware, and its Restated Certificate of Incorporation was
filed in the office of the Secretary of State on August 8, 1994.

     2. The Restated Certificate of Incorporation of the Corporation is hereby
amended by making the following changes to Article IV(B):

          a. The text of Section 1(k) is hereby deleted and replaced with
     "[Reserved]."

          b. The text in Section 6(d)(v)(x)(1) that reads "(assuming conversion
     of all outstanding shares of Series A Preferred Stock into Common Shares)"
     is hereby deleted.

          c. The text in Section 6(d)(v)(x)(2) that reads "$6.75 per share" is
     hereby deleted and replaced with "the Conversion Price in effect on the
     date of such issuance".

          d. The text in Section 6(d)(v)(y)(1) that reads "(assuming conversion
     of all outstanding shares of Series A Preferred Stock into Common Shares)"
     is hereby deleted.

          e. The following paragraph is hereby added immediately after Section
     6(d)(v)(y)(2):

               For purposes of this subsection, the number of Common Shares
          deemed outstanding at any given time shall include all shares of
          capital stock convertible into, or exchangeable for, Common Shares (on
          an as converted basis) as well as all Common Shares issuable upon the
          exercise of (x) any convertible debt, (y) warrants outstanding and (z)
          options outstanding.


<PAGE>



          f. The text in the first sentence of Section 6(d)(v)(C) that reads ",
     including, but not limited to, a change resulting from the antidilution
     provisions thereof" is hereby deleted and replaced with "for any reason
     other than an event that would require adjustment to prevent dilution".

          g. The current Section 6(d)(vi) is hereby deleted and replaced with
     the following new Section 6(d)(vi);

               (vi) Additional Stock. "Additional Stock" shall mean any Common
          Share issued by the corporation after the Issue Date for a
          consideration per share equal to or less than the Conversion Price in
          effect on the date of such issuance, as adjusted for stock splits,
          dividends and combinations (or Common Shares issuable pursuant to
          options or rights or convertible or exchangeable securities as
          referred to in paragraph (v) above if the consideration therefor as
          provided in clause (A) therein is equal to or less than the Conversion
          Price in effect on the date of such issuance, as adjusted as
          aforesaid), other than

               (A) Common Shares issued pursuant to any transaction described in
          Section 2(d) or 6(d)(i)-(iv) hereof,

               (B) Common Shares and options to purchase Common Shares issued or
          issuable to employees, directors, consultants or advisors of the
          corporation directly or pursuant to a stock plan or stock purchase
          plan or agreement, which have been issued as of the date hereof or are
          issuable pursuant to agreements entered into on or prior to the date
          hereof. Any further Common Shares and options to purchase Common
          Shares issued or issuable to employees, directors, consultants or
          advisors of the corporation other than those referenced in the
          preceding sentence but only with respect to such options as are
          exercisable at prices no lower than the Closing Bid Price (as defined
          below) of the Common Shares as of the date of grant thereof,

               (C) Common Shares issued in payment of dividends or upon
          conversion of the Series A Preferred Stock,

               (D) Securities issued or issuable for consideration other than
          solely cash in connection with any license, collaborative, corporate
          partnership, co- marketing or copromotion, research and development or
          similar arrangement,

               (E) upon the issuance or sale of Common Shares or securities
          convertible into or exchangeable for Common Shares (such securities
          convertible, exercisable or exchangeable into Common Shares being
          herein called "Convertible Securities") pursuant to the exercise of
          any rights, options or warrants to receive, subscribe for or purchase,
          or any options for the purchase of, Common Shares or Convertible
          Securities, whether or not such rights, warrants or options were
          outstanding on the date of the original issuance of the Series A
          Preferred Stock or were thereafter issued or sold,

                                        2


<PAGE>

          provided that an adjustment was either made or not required to be made
          in accordance with Subsection 6(d)(v) in connection with the issuance
          or sale of such securities or any modification of the terms thereof,
          or

               (F) upon the issuance or sale of Common Shares upon conversion or
          exchange of any Convertible Securities, provided that any adjustments
          required to be made upon the issuance or sale of such Convertible
          Securities or any modification of the terms thereof were so made, and
          whether or not such Convertible Securities were outstanding on the
          date of the original sale of the Series A Preferred Stock or were
          thereafter issued or sold.

          For purposes of this section, the "Closing Bid Price" for any security
          for a trading day shall be the reported per share closing bid price of
          such security regular way on the Stock Market (as defined below) on
          such trading day, or, if there were no transactions on such trading
          day, the average of the reported closing bid and asked prices, regular
          way, of such security on the relevant Stock Market on such trading
          day. The "Stock Market" shall mean, with respect to any security, the
          principal national securities exchange on which such security is
          listed or admitted to trading or, if such security is not listed or
          admitted to trading on any national securities exchange, shall mean
          The Nasdaq National Market System ("NNM") or The Nasdaq SmallCap
          Market ("SCM" and, together with NNM, "Nasdaq") or, if such security
          is not quoted on Nasdaq, shall mean the OTC Bulletin Board or, if such
          security is not quoted on the OTC Bulletin Board, shall mean the
          over-the-counter market as furnished by any NASD member firm selected
          from time to time by the corporation for that purpose.

          h. The text of Section 7 is hereby deleted and replaced with
     "[Reserved]."

     3. This Amendment to the Certificate of Incorporation of the Corporation
has been duly adopted in accordance with Section 242 of the General Corporation
Law of the State of Delaware.

     The undersigned has executed this certificate as of April __, 1999.


                                         GENTA INCORPORATED


                                         By:  __________________________
                                              Kenneth G. Kasses, Ph.D.
                                              President, Chief Executive Officer
                                              and Chairman of the Board

                                        3


<PAGE>


                                                                       Exhibit B


                              TEXT OF ARTICLE IV(B)
                                     OF THE
                      RESTATED CERTIFICATE OF INCORPORATION
                                       OF
                               GENTA INCORPORATED


                                   ARTICLE IV


     (B) Rights, Preferences and Restrictions of Series A Preferred Stock. The
Series A Preferred Stock shall have the voting power, preferences and relative,
participating, optional or other special rights, and the qualifications,
limitations or restrictions thereof, as follows:

     1. Definitions. For purposes of the Series A Preferred Stock, in addition
to those terms otherwise defined herein, the following terms shall have the
meanings indicated:

          (a) "Board of Directors" shall mean the board of directors of the
     corporation or any committee authorized by such Board of Directors to
     perform any of its responsibilities with respect to the Series A Preferred
     Stock.

          (b) "Business Day" shall mean any day other than a Saturday, Sunday or
     a day on which banking institutions in the City of New York are authorized
     or obligated by law or executive order to close.

          (c) "Closing Price" of a security on any day shall mean the average of
     the daily closing prices for the ten (10) consecutive Trading Dates
     commencing twelve (12) Trading Dates before such date. The closing price
     for each Trading Date shall be the reported last sales price, regular way,
     for the security or, in case no sale takes place on such day, the average
     of the reported closing bid and asked prices, regular way, for the security
     in either case as reported on the New York Stock Exchange or the principal
     national securities exchange on which the security is listed or admitted to
     trading, or, if not listed or admitted to trading on any national
     securities exchange, on the Nasdaq National Market ("NNM"). If the Closing
     Price cannot be so determined, then the Closing Price shall be determined:

               (i) by the written agreement of the corporation and the holders
          of shares of Series A Preferred Stock representing a majority of the
          Common Shares then obtainable from the conversion of outstanding
          shares of Series A Preferred Stock, or


<PAGE>


               (ii) in the event that no such agreement is reached within twenty
          (20) days after the event giving rise to the need to determine the
          Closing Price, by the agreement of two arbitrators, one of whom shall
          be selected by the corporation and the other of whom shall be selected
          by such majority holders, or

               (iii) if the two arbitrators so selected fail to agree within
          twenty (20) days, by a third arbitrator selected by the mutual
          agreement of the other two (with all costs and expenses of any
          arbitrators to be paid by the corporation).

     The corporation shall cooperate to permit any determination under the
     preceding clause (i), (ii) or (iii).

          (d) "Common Stock" shall mean the Common Stock of the corporation, par
     value $.001 per share.

          (e) "Common Shares" shall have the meaning set forth in Section 6.

          (f) "Company Notice" shall have the meaning set forth in paragraph (d)
     of Section 4.

          (g) "Conversion Price" shall mean the Conversion Price per Common
     Share into which the Series A Preferred Stock is convertible, as such
     Conversion Price may be adjusted pursuant to Section 6 hereof. The initial
     Conversion Price will be $9.00.

          (h) "Dividend Payment Date" shall have the meaning set forth in
     paragraph (a) of Section 2 hereof.

          (i) "Dividend Payment Record Date" shall have the meaning set forth in
     paragraph (a) of Section 2 hereof.

          (j) "Dividend Periods" shall mean annual dividend periods commencing
     on the Issue Date and the anniversaries of the Issue Date and ending on and
     including the day preceding the applicable anniversary of the Issue Date.

          (k) "Fundamental Change" shall have the meaning set forth in paragraph
     (c) of Section 7 hereof.

          (l) "Issue Date" shall mean September 24, 1993.

          (m) "Person" shall mean any individual, association, partnership,
     corporation, a government or a political subdivision thereof, a
     governmental agency or other entity, and shall include any agency successor
     (by merger or otherwise) of such entity.


                                        2


<PAGE>


          (n) "Trading Date" with respect to Common Shares means (i) if the
     Common Shares are listed or admitted for trading on the New York Stock
     Exchange or another national securities exchange, a day on which the New
     York Stock Exchange or such other national securities exchange is open for
     business, or (ii) if the Common Shares are quoted on the NNM, a day on
     which trades may be made on the NNM, or (iii) otherwise, any Business Day.

          (o) "Transfer Agent" means First Interstate Bank of California or such
     other agent or agents of the corporation as may be designated by the Board
     of Directors as the transfer agent for the Series A Preferred Stock.

     2.   Dividends.

          (a) Holders of the Series A Preferred Stock are entitled to receive,
     when, as and if declared by the Board of Directors, out of the funds of the
     corporation legally available therefor, an annual dividend payable in
     Common Stock or cash or a combination of Common Stock and cash, at the
     Board of Directors option (except that if in the preceding 12 months the
     corporation has paid cash dividends on any Preferred Stock with respect to
     which the corporation had the option to pay dividends in Common Stock, such
     annual dividend on the Series A Preferred Stock shall be paid in cash), at
     an annual rate equal to not less than (i) $3.00 per share of Series A
     Preferred Stock for the year commencing on the Issue Date, payable on the
     first anniversary of the Issue Date, (ii) $4.00 per share of Series A
     Preferred Stock for the year commencing on the first anniversary of the
     Issue Date, payable on the second anniversary of the Issue Date, (iii)
     $5.00 per share for the year commencing on the second anniversary of the
     Issue Date, payable on the third anniversary of the Issue Date, and (iv)
     $5.00 per share for the year commencing on the third anniversary of the
     Issue Date payable on the fourth anniversary of the Issue Date (and, in the
     case of any accrued but unpaid dividends, upon liquidation as provided
     under Section 3 hereof, upon redemption as provided under Section 4 hereof
     and upon conversion as provided under Section 6 hereof). If the first,
     second, third or fourth anniversaries of the Issue Date (each a "Dividend
     Payment Date") or any other Dividend Payment Date shall be on a day other
     than a Business Day, then the Dividend Payment Date shall be on the next
     succeeding Business Day. Dividends on the Series A Preferred Stock will be
     cumulative from the Issue Date, whether or not in any Dividend Period or
     Periods there shall be funds of the corporation legally available for the
     payment of such dividends, whether or not such dividends are declared, and
     whether or not there are other legal or contractual restrictions on the
     declaration or payment of such dividends. Dividends will be payable to
     holders of record as they appear on the stock books of the corporation on
     the Dividend Payment Record Date, which shall be not more than 60 days nor
     less than 10 days preceding the Dividend Payment Dates thereof, as shall be
     fixed by the Board of Directors. Dividends on the Series A Preferred Stock
     shall accrue (whether or not declared) on a daily basis from the Issue Date
     in the amounts described above until the fourth anniversary of the Issue
     Date. No dividends shall accrue on the Series A Preferred Stock on or after
     the fourth anniversary of the Issue Date. Accrued dividends for each
     Dividend Period shall

                                        3


<PAGE>


     accumulate to the extent not paid on the Dividend Payment Date first
     following the Dividend Period for which they accrue. As used herein, the
     term "accrued" with respect to dividends includes both accrued and
     accumulated dividends.

          (b) If, and to the extent, the Board of Directors elects to pay
     dividends on the Series A Preferred Stock in Common Stock, the number of
     shares of Common Stock which shall be issued in payment of such dividend
     shall be equal to the amount of such dividend otherwise payable in cash
     divided by the Closing Price as of the relevant Dividend Payment Date. No
     fractional shares of Common Stock shall be issued in connection with such a
     dividend, but, in lieu of any fraction of a share of Common Stock which
     would otherwise be issuable in respect of the aggregate number of shares of
     Series A Preferred Stock held by the holder thereof, the holder shall have
     the right to receive an amount in cash equal to the same fraction of the
     Closing Price as of the Dividend Payment Date for such dividend.

          (c) Holders of shares of Series A Preferred Stock called for
     redemption on a redemption date falling between the close of business on a
     Dividend Payment Record Date and the opening of business on the
     corresponding Dividend Payment Date shall, in lieu of receiving such
     dividend payment on the Dividend Payment Date fixed therefor, receive an
     amount equal to such dividend payment (consisting of all accumulated and
     unpaid dividends through and including the redemption date) on the date
     fixed for redemption (unless such holder converts such shares of Series A
     Preferred Stock in accordance with Section 6 hereof). If a conversion of
     shares of Series A Preferred Stock occurs between a Dividend Payment Record
     Date and the corresponding Dividend Payment Date, the dividends payable on
     the conversion date under Section 6 hereof shall be calculated through and
     including such conversion date. If, for whatever reason (v) any share of
     Series A Preferred Stock has not been converted pursuant to Section 6
     hereof on a conversion date, or (vi) all payments have not been made with
     respect to any share of Series A Preferred Stock as required by Section 4
     on a redemption date or all payments have not been made with respect to any
     share of Series A Preferred Stock as required by Section 7 on a repurchase
     date (other than because of a failure by the holder thereof to tender such
     shares for payment on such date) then prior to the fourth anniversary of
     the Issue Date, notwithstanding any other provision hereof, dividends shall
     continue to accrue on such outstanding shares until paid. No dividends
     shall accrue on any share of Series A Preferred Stock subsequent to the
     fourth anniversary of the Issue Date.

          (d) If the corporation shall, after the Issue Date, fix a record date
     for the making of a Distribution on Common Stock to holders of its Common
     Stock (other than any distribution referred to in Section 6(d) hereof and
     cash dividends paid out of retained earnings of the corporation determined
     under generally accepted accounting principles consistently applied), the
     corporation shall set aside in an escrow reasonably acceptable to the
     holders of the Series A Preferred Stock, the Distribution on Common Stock
     to which they would have been entitled if they had converted all of the
     Series A Preferred Stock held by them for the corporation's Common Stock
     immediately prior to the record date for the purpose of determining
     stockholders

                                        4


<PAGE>



     entitled to receive such Distribution on Common Stock and any such
     Distribution on Common Stock shall thereafter be distributed from time to
     time out of such escrow to persons converting the Series A Preferred Stock
     (immediately upon conversion) to the extent such Distribution on Common
     Stock relates to the shares of Series A Preferred Stock then being
     converted. As used herein, the term "Distribution on Common Stock" means a
     distribution to holders of the Common Stock (including any such
     distribution made in connection with a consolidation or merger in which the
     corporation is the continuing corporation) of (i) assets (including any
     cash dividends or distributions), (ii) evidences of indebtedness or other
     securities of the corporation or of any entity other than the corporation
     or (iii) subscription rights, options or warrants to purchase any of the
     foregoing assets or securities, whether or not such rights, options or
     warrants are immediately exercisable.

          (e) The amount of dividends payable for any Dividend Period shorter or
     longer than a full Dividend Period on the Series A Preferred Stock shall be
     computed on the basis of a 360-day year consisting of twelve 30-day months.
     Holders of shares of Series A Preferred Stock shall not be entitled to any
     dividends, whether payable in cash, property or stock, in excess of the
     cumulative and other dividends herein provided. No interest, or sum of
     money in lieu of interest, shall be payable in respect of any dividend
     payment or payments on the Series A Preferred Stock which may be in
     arrears.

          (f) So long as any shares of the Series A Preferred Stock are
     outstanding, no dividends, except as described in the next succeeding
     sentence, shall be declared or paid or set apart for payment on any class
     or series of stock of the corporation ranking, as to dividends, on a parity
     with the Series A Preferred Stock, for any period unless full cumulative
     dividends have been or contemporaneously are declared and paid, or declared
     and a sum sufficient for the payment thereof set apart for such payment, on
     the Series A Preferred Stock for all Dividend Periods terminating on or
     prior to the date of payment, or setting apart for payment, of such
     dividends on such parity stock. When dividends are not paid in full or a
     sum sufficient for such payment is not set apart, as aforesaid, upon the
     shares of the Series A Preferred Stock and any other class or series of
     stock ranking on a parity as to dividends with the Series A Preferred
     Stock, all dividends declared upon shares of the Series A Preferred Stock
     and all dividends declared upon such other stock shall be declared pro rata
     so that the amounts of dividends per share declared on the Series A
     Preferred Stock and such other stock shall in all cases bear to each other
     the same ratio that accrued dividends per share on the shares of the Series
     A Preferred Stock and on such other stock bear to each other.

          (g) So long as any shares of the Series A Preferred Stock are
     outstanding, no other stock of the corporation ranking on a parity with the
     Series A Preferred Stock as to dividends or upon liquidation, dissolution
     or winding up shall be redeemed, purchased or otherwise acquired for any
     consideration (or any moneys be paid to or made available for a sinking
     fund or otherwise for the purchase or redemption of any shares of any such
     stock) by the corporation unless the full

                                        5


<PAGE>



     cumulative dividends, if any, accrued on all outstanding shares of the
     Series A Preferred Stock shall have been paid or set apart for payment for
     all past Dividend Periods.

          (h) So long as any shares of the Series A Preferred Stock are
     outstanding, no dividends (other than dividends or distributions paid in
     shares of, or options, warrants or rights to subscribe for or purchase
     shares of, Common Stock or other stock ranking junior to the Series A
     Preferred Stock, as to dividends and upon liquidation, dissolution or
     winding up) shall be declared or paid or set apart for payment and no other
     distribution shall be declared or made or set apart for payment, in each
     case upon the Common Stock or any other stock of the corporation ranking
     junior to the Series A Preferred Stock as to dividends or upon liquidation,
     dissolution or winding up, nor shall any Common Stock nor any other such
     stock of the corporation ranking junior to the Series A Preferred Stock as
     to dividends or upon liquidation, dissolution or winding up be redeemed,
     purchased or otherwise acquired for any consideration (or any moneys be
     paid to or made available for a sinking fund or otherwise for the purchase
     or redemption of any shares of any such stock) by the corporation (except
     by conversion into or exchange for stock of the corporation ranking junior
     to the Series A Preferred Stock as to dividends and upon liquidation,
     dissolution or winding up) unless, in each case the full cumulative
     dividends, if any, accrued on all outstanding shares of the Series A
     Preferred Stock and any other stock of the corporation ranking on a parity
     with the Series A Preferred Stock as to dividends shall have been paid or
     set apart for payment for all past Dividend Periods and all past dividend
     periods with respect to such other stock.

     3.   Liquidation Preference.

          (a) In the event of any liquidation, dissolution or winding up of the
     corporation, whether voluntary or involuntary, before any payment or
     distribution of the assets of the corporation (whether capital or surplus)
     shall be made to or set apart for the holders of Common Stock or any other
     series or class or classes of stock of the corporation ranking junior to
     the Series A Preferred Stock upon liquidation, dissolution or winding up,
     the holders of the shares of Series A Preferred Stock shall be entitled to
     receive from the assets of the corporation, whether represented by capital,
     surplus, reserves or earnings, payment in cash or an amount (the "Preferred
     Liquidation Value") equal to the greater of (i) $50.00 per share, or (ii)
     the amount per share of Series A Preferred Stock that would have been
     payable had each such share been converted to Common Shares immediately
     prior to such event of liquidation, dissolution or winding-up pursuant to
     Section 6 hereof, plus in either case, an amount per share equal to all
     dividends (whether earned or declared) accrued and unpaid thereon to the
     date of final distribution to such holders; but such holders shall not be
     entitled to any further payment. No payment on account of any liquidation,
     dissolution or winding up of the corporation shall be made to the holders
     of any class or series of stock ranking on a parity with the Series A
     Preferred Stock in respect of the distribution of assets upon dissolution,
     liquidation or winding up unless there shall likewise be paid at the same
     time to the holders of the Series A

                                        6


<PAGE>



     Preferred Stock like proportionate amounts determined ratably in proportion
     to the full amounts to which the holders of all outstanding shares of
     Series A Preferred Stock and the holders of all outstanding shares of such
     parity stock are respectively entitled with respect to such distribution.
     If, upon any liquidation, dissolution or winding up of the corporation, the
     assets of the corporation, or proceeds thereof, distributable among the
     holders of the shares of Series A Preferred Stock shall be insufficient to
     pay in full the preferential amount aforesaid and liquidating payments on
     any other shares of stock ranking, as to liquidation, dissolution or
     winding up, on a parity with the Series A Preferred Stock, then such
     assets, or the proceeds thereof, shall be distributed among the holders of
     shares of Series A Preferred Stock and any such other stock ratably in
     accordance with the respective amounts which would be payable on such
     shares of Series A Preferred Stock and any such other stock if all amounts
     payable thereon were paid in full. For the purposes of this Section 3, (i)
     a consolidation or merger of the corporation with one or more corporations
     or other entities, (ii) a sale, lease, exchange or transfer of all or any
     part of the corporation's assets or (iii) a statutory share exchange shall
     not be deemed to be a liquidation, dissolution or winding up, voluntary or
     involuntary.

          (b) Subject to the rights of the holders of shares of any series or
     class or classes of stock ranking on a parity with or prior to the Series A
     Preferred Stock upon liquidation, dissolution or winding up, upon any
     liquidation, dissolution or winding up of the corporation, after payment
     shall have been made in full to the holders of Series A Preferred Stock, as
     provided in this Section 3, any other series or class or classes of stock
     ranking junior to the Series A Preferred Stock upon liquidation,
     dissolution or winding up shall, subject to the respective terms and
     provisions (if any) applying thereto, be entitled to receive any and all
     assets remaining to be paid or distributed, and the holders of Series A
     Preferred Stock shall not be entitled to share therein.

          (c) Written notice of any liquidation, dissolution or winding up of
     the corporation, stating the payment date or dates when and the place or
     places where the amounts distributable in such circumstances shall be
     payable, shall be given by first class mail, postage prepaid, not less than
     thirty (30) days prior to any payment date stated therein, to the holders
     of record of the Series A Preferred Stock at their respective addresses as
     the same shall appear on the books of the Transfer Agent.

     4.   Redemption.

          (a) Any redemption of Series A Preferred Stock pursuant to this
     Section 4 shall be at a price equal to $50.00 per share, plus in each case
     an amount equal to accrued and unpaid dividends, if any, to (and including)
     the redemption date, whether or not earned or declared (the "Redemption
     Price"). The Redemption Price may be paid in cash or, at the corporation's
     option, subject to the provisions of this Section 4, in Common Shares or in
     a combination of Common Shares and cash. If the corporation elects to pay
     the Redemption Price for the Series A Preferred Stock in Common Shares,
     then such number of Common Shares payable to a holder of Series A Preferred
     Stock shall be equal to the greater of (i) the number of Common Shares

                                        7


<PAGE>


     into which the shares of Series A Preferred Stock held by the holder of
     such Series A Preferred Stock could be converted as of the date on which
     notice of such redemption is given by the corporation or (ii) the number of
     Common Shares determined by dividing the Redemption Price payable to such
     holder of Series A Preferred Stock by the Closing Price as of the date on
     which notice of such redemption is given by the corporation.

          (b) At any time on or after the date which is eighteen months after
     the Issue Date (and not before) and prior to the third anniversary of the
     Issue Date, if the daily closing price (as referred to in the definition of
     "Closing Price" in Section 1) of the Common Shares has been 150% or more of
     the Conversion Price for the 30 Trading Dates ending on and including the
     date of the notice of redemption under Section 4(d), the corporation may at
     its option (subject to the other provisions of this Section 4) redeem all
     or a portion of the outstanding Series A Preferred Stock pursuant to this
     Section 4(b).

          (c) On the third anniversary of the Issue Date, the corporation shall
     (subject to the other provisions of this Section 4) redeem all the
     outstanding Series A Preferred Stock pursuant to this Section 4(c);
     provided, that if the corporation intends to elect in accordance with this
     Section 4 to pay the Redemption Price in Common Shares and, having used its
     best efforts to do so, has not been able to arrange for the firm commitment
     underwriting referred to in Section 4(d)(xi) below prior to such date, the
     corporation shall not be required to redeem the Series A Preferred Stock
     for cash on such date but shall be required to (i) redeem for the
     Redemption Price payable in Common Shares all Series A Preferred Stock held
     by holders which waive the firm commitment underwriting requirements
     herein, and (ii) if any Series A Preferred Stock is not so redeemed, to
     continue to use its reasonable efforts to arrange for such firm commitment
     underwriting as promptly as practicable thereafter and shall effect the
     redemption of all outstanding shares of Series A Preferred Stock upon
     arranging for such firm commitment underwriting.

          (d) In the event the corporation shall elect to redeem shares of
     Series A Preferred Stock pursuant to Section 4(b) or shall be required to
     redeem shares of Series A Preferred Stock pursuant to Section 4(c), a
     Company Notice of such redemption shall be given by first class mail,
     postage prepaid, mailed not less than 30 nor more than 90 days prior to the
     redemption date, to each holder of record of the shares to be redeemed, at
     such holder's address as the same appears on the stock records of the
     corporation. Each such notice shall state: (i) the redemption date; (ii)
     the number of shares of Series A Preferred Stock to be redeemed and, if
     less than all the shares held by such holder are to be redeemed, the number
     of such shares to be redeemed from such holder; (iii) the Redemption Price;
     (iv) whether the Redemption Price will be paid in Common Shares or cash, or
     in a combination of Common Shares and cash; (v) the place or places where
     certificates for such shares are to be surrendered for payment of the
     Redemption Price; (vi) that payment will be made upon presentation and
     surrender of such Series A Preferred Stock; (vii) the then current
     Conversion Price and the date on which the right to convert such shares of

                                        8


<PAGE>


     Series A Preferred Stock will expire; (viii) that dividends on the shares
     to be redeemed shall cease to accrue following such redemption date; (ix)
     that such redemption is at the option of the corporation; (x) that
     dividends accrued to and including the date fixed for redemption will be
     paid as specified in said notice and (xi) if the Redemption Price will be
     paid in Common Shares, that an investment banking firm mutually acceptable
     to the corporation and the holders of Series A Preferred Stock has agreed
     to proceed with a firm commitment underwriting (l) for holders of Series A
     Preferred Stock to be redeemed under this Section 4 by such notice, (m)
     with respect to the Common Shares obtainable by such holders upon
     redemption of the Series A Preferred Stock and (n) which will yield net
     proceeds (after deducting underwriting commissions and fees and other
     expenses of the offering) (which net proceeds may be supplemented by the
     corporation, at its option, to meet the following threshold amounts) (a) in
     the case of a redemption under Section 4(b), for such holders for such
     Common Shares equal to at least 150% of the Conversion Price for each
     Common Share sold and (b) in the case of a redemption under Section 4(c),
     for such holders of such redeemed Series A Preferred Stock equal to the
     Redemption Price for each redeemed share of Series A Preferred Stock.
     Notice having been mailed as aforesaid, from and after the redemption date,
     unless the corporation shall be in default in providing money or Common
     Shares for the payment of the Redemption Price (including any accrued and
     unpaid dividends to (and including) the date fixed for redemption, (1)
     dividends on the shares of the Series A Preferred Stock so called for
     redemption shall cease to accrue, (2) said shares shall be deemed no longer
     outstanding, and (3) all rights of the holders thereof as stockholders of
     the corporation (except the right to receive from the corporation any
     moneys or Common Shares payable upon redemption without interest thereon)
     shall cease except for the rights applicable to any Common Shares paid
     pursuant to the redemption. If the corporation chooses to redeem the Series
     A Preferred Stock for cash its obligation to provide moneys in accordance
     with the preceding sentence shall be deemed fulfilled if, on or before the
     redemption date, the corporation shall deposit with a bank or trust company
     having an office or agency in the Borough of Manhattan, City of New York,
     and having a capital and surplus of at least $50,000,000, the principal
     amount of funds necessary for such redemption, in trust for the account of
     the holders of the shares to be redeemed (and so as to be and continue to
     be available therefor), with irrevocable instructions and authority to such
     bank or trust company that such funds be applied to the redemption of the
     shares of Series A Preferred Stock so called for redemption. Any interest
     accrued on such funds shall be paid to the corporation from time to time.
     Any funds so deposited and unclaimed at the end of three years from such
     redemption date shall be released or repaid to the corporation, after
     which, subject to any applicable laws relating to escheat or unclaimed
     property, the holder or holders of such shares of Series A Preferred Stock
     so called for redemption shall look only to the corporation for payment of
     the Redemption Price.

          Upon surrender in accordance with said notice of the certificates for
     any such shares so redeemed (properly endorsed or assigned for transfer, if
     the Board of Directors shall so require and the notice shall so state),
     such shares shall be redeemed by the corporation at the applicable
     Redemption Price aforesaid. If fewer than all the

                                        9


<PAGE>



     outstanding shares of Series A Preferred Stock are to be redeemed, shares
     to be redeemed shall be selected by the corporation from outstanding shares
     of Series A Preferred Stock not previously called for redemption by lot or
     pro rata (as near as may be) or by any other equitable method determined by
     the corporation in its sole discretion. If fewer than all the shares
     represented by any certificate are redeemed, a new certificate shall be
     issued representing the unredeemed shares without cost to the holder
     thereof.

          Notwithstanding the foregoing, if the Company Notice of redemption has
     been given pursuant to this Section 4 and any holder of shares of Series A
     Preferred Stock shall, prior to the close of business on the third Business
     Day preceding the redemption date, give written notice to the corporation
     pursuant to Section 6(b) hereof of the conversion of any or all of the
     shares to be redeemed held by such holder (accompanied by a certificate or
     certificates for such shares, duly endorsed or assigned to the
     corporation), then the conversion of such shares to be redeemed shall
     become effective as provided in Section 6.

          (e) In the case of a redemption under Section 4(b) or Section 4(c)
     hereof, if the Redemption Price will be paid, in whole or in part, in
     Common Shares, within 20 days after the receipt of the Company Notice
     described in Section 4(d) hereof, each holder of Series A Preferred Stock
     shall notify the corporation whether or not it elects to participate in
     such underwritten offering (the failure to timely provide the required
     notice being deemed an election not to participate in such underwritten
     offering for purposes of this Section 4). As soon as practicable
     thereafter, the corporation and holders wishing to participate in such
     underwritten offering will, using such investment banking firm, proceed
     with a registration, qualification and offering of the Common Shares
     obtainable upon conversion of the Series A Preferred Stock held by such
     holders and subject to required redemption by the corporation under the
     notice given under Section 4(d) hereof. It shall be a condition to the
     obligation of selling holders to close under such firm commitment
     underwriting that such underwriting shall net to the holders wishing to
     participate in such underwritten offering an amount (after deducting
     underwriting commissions and fees and other expenses of the underwriting)
     at least equal to the amounts stated in Section 4(d)(xi)(n)(a) or (b), as
     the case may be.

          (f) An election by any holders under the first sentence of Section
     4(e) hereof to participate in an underwritten public offering shall suspend
     any redemption under this Section 4 with respect to Series A Preferred
     Stock held by such holders. If such holders who notified the corporation
     that they wished to participate in the public offering refuse to close
     under the underwriting agreement despite the satisfaction of all conditions
     therein to their obligation to close thereunder, then the corporation shall
     redeem the Series A Preferred Stock held by such holders scheduled for
     redemption under Section 4(d) hereof; any such required redemption shall be
     made no later than the date (which shall be a Business Day) to be specified
     (not more than 20 days or less than 5 days after such failure to close) to
     such holders by the corporation. If any underwriting under Section 4(e)
     does not close due to one or more of the conditions

                                       10


<PAGE>



     to the sellers' obligations to close under the underwriting agreement not
     being satisfied, then the Company Notice requiring redemption of the Series
     A Preferred Stock described in Section 4(d) hereof shall be rescinded,
     subject, in the case of a redemption pursuant to Section 4(c) hereof, to an
     obligation of the corporation to use its reasonable best efforts to arrange
     as promptly as practicable thereafter for another firm commitment
     underwriting for the Common Shares issuable in connection with such
     redemption and to effect the redemption of all outstanding shares of Series
     A Preferred Stock upon arranging for such firm commitment underwriting.

          (g) Neither the corporation nor any of its subsidiaries shall
     repurchase any outstanding shares of Series A Preferred Stock unless the
     corporation on the same terms either (i) offers to purchase all of the then
     outstanding shares of Series A Preferred Stock or (ii) offers to purchase
     shares of Series A Preferred Stock from the holders in proportion to the
     respective number of shares of Series A Preferred Stock held by each
     holder. In any such repurchase by the corporation, if all shares of Series
     A Preferred Stock are not being repurchased, then the number of shares of
     Series A Preferred Stock to be repurchased shall be allocated among all
     shares of Series A Preferred Stock held by holders which accept the
     corporation's repurchase offer so that the shares of Series A Preferred
     Stock are repurchased from such holders in proportion to the respective
     number of shares of Series A Preferred Stock held by each such holder which
     accepts the corporation's offer (or in such other proportion as agreed by
     all such holders who accept the corporation's offer). Nothing in this
     Section 4(g) shall (i) obligate a holder of shares of Series A Preferred
     Stock to accept the corporation's repurchase offer or (ii) prevent the
     corporation from redeeming shares of Series A Preferred Stock in accordance
     with the terms of Sections 4(a) through (f) hereof.

     5. Shares To Be Retired. Any share of Series A Preferred Stock converted,
redeemed or otherwise acquired by the corporation shall be retired and canceled
and shall upon cancellation be restored to the status of authorized but unissued
shares of Preferred Stock, subject to reissuance by the Board of Directors as
shares of Preferred Stock of one or more other series but not as shares of
Series A Preferred Stock.

     6. Conversion. Holders of shares of Series A Preferred Stock shall have the
right to convert all or a portion of such shares (including fractions of such
shares) into fully paid and nonassessable shares of Common Stock or any capital
stock or other securities into which such Common Stock shall have been changed
or any capital stock or other securities resulting from a reclassification
thereof (such shares, the "Common Shares"), as follows:

          (a) Subject to and upon compliance with the provisions of this Section
     6, a holder of shares of Series A Preferred Stock shall have the right, at
     the option of such holder, at any time, to convert any of such shares (or
     fractions thereof) into the number of fully paid and nonassessable shares
     of Common Stock (calculated as to each conversion to the nearest 1/100th of
     a share) obtained by dividing the aggregate liquidation preference of the
     shares to be converted by the Conversion Price and by surrender of such
     shares, such surrender to be made in the manner provided in

                                       11


<PAGE>



     paragraph (b) of this Section 6; provided, however, that the right to
     convert shares called for redemption pursuant to Section 4 shall terminate
     at the close of business on the third Business Day preceding the date fixed
     for such redemption, unless the corporation shall default in making payment
     of the amount payable upon such redemption. Subject to the following
     provisions of this Section 6(a), any share of Series A Preferred Stock may
     be converted, at the option of its holder, in part into Common Shares under
     the procedures set forth above. If a part of a share of Series A Preferred
     Stock is converted, then the corporation will convert such share into the
     appropriate number of Common Shares (subject to paragraph (c) of this
     Section 6) and issue a fractional share of Series A Preferred Stock
     evidencing the remaining interest of such holder. The Common Shares
     issuable upon conversion of the shares of Series A Preferred Stock, when
     such Common Shares shall be issued in accordance with the terms hereof, are
     hereby declared to be and shall be duly authorized, validly issued, fully
     paid and nonassessable Common Shares held by the holders thereof.

          (b) In order to exercise the conversion right, the holder of each
     share of Series A Preferred Stock (or fraction thereof) to be converted
     shall surrender the certificate representing such share, duly endorsed or
     assigned to the corporation or in blank, at the office or agency of the
     Transfer Agent in the Borough of Manhattan, City of New York or Los
     Angeles, California, accompanied by written notice to the corporation that
     the holder thereof elects to convert the holder's Series A Preferred Stock
     or a specified portion thereof. Unless the shares issuable on conversion
     are to be issued in the same name as the name in which such share of Series
     A Preferred Stock is registered, each share surrendered for conversion
     shall be accompanied by instruments of transfer, in form satisfactory to
     the corporation, duly executed by the holder or such holder's duly
     authorized attorney and an amount sufficient to pay any required transfer
     or similar tax (or evidence reasonably satisfactory to the corporation
     demonstrating that such taxes have been paid).

          Within five (5) Business Days after receipt of any share of Series A
     Preferred Stock and an election to convert all or a portion of such share
     of Series A Preferred Stock under this Section 6, the corporation will pay,
     out of funds legally available therefor, to the holder of such share of
     Series A Preferred Stock full cumulative dividends, if any, accrued to the
     effective date of conversion of such share of Series A Preferred Stock
     provided, however, that if a share of Series A Preferred Stock is
     surrendered for conversion between a Dividend Payment Record Date and a
     Dividend Payment Date, the corporation shall only be obligated to pay such
     full cumulative dividends to the record holder of such share of Series A
     Preferred Stock on the Dividend Payment Record Date.

          As promptly as practicable after the surrender of certificates for
     shares of Series A Preferred Stock as aforesaid and in any event within
     five (5) Business Days thereafter (unless such conversion is in connection
     with an underwritten public offering of Common Shares, in which event
     concurrently with such conversion), the corporation shall issue and shall
     deliver at such office to such holder, or on his or her written order, a
     certificate or certificates for the number of Common Shares issuable


                                       12


<PAGE>


     upon the conversion of such shares in accordance with the provisions of
     this Section 6, and any fractional interest in respect of a Common Share
     arising upon such conversion shall be settled as provided in paragraph (c)
     of this Section 6.

          Each conversion shall be deemed to have been effected immediately
     prior to the close of business on the date on which the certificates for
     shares of Series A Preferred Stock shall have been surrendered and such
     notice received by the corporation as aforesaid (except that if such
     conversion is in connection with an underwritten public offering of Common
     Shares, then such conversion shall be deemed to have been effected upon
     such surrender), and the person or persons in whose name or names any
     certificate or certificates for shares of Common Stock shall be issuable
     upon such conversion shall be deemed to have become the holder or holders
     of record of the shares represented thereby at such time on such date, and
     such conversion shall be at the Conversion Price in effect at such time on
     such date, unless the stock transfer books of the corporation shall be
     closed on that date, in which event such person or persons shall be deemed
     to have become such holder or holders of record at the close of business on
     the next succeeding day on which such stock transfer books are open, but
     such conversion shall be at the Conversion Price in effect on the date and
     at the time referred to above. All Common Shares delivered upon conversion
     of the Series A Preferred Stock will, upon delivery, be duly authorized,
     validly issued and fully paid and nonassessable.

          (c) In connection with the conversion of any shares of Series A
     Preferred Stock, fractions of such shares may be converted; however, no
     fractional shares or securities representing fractions of Common Shares
     shall be issued upon conversion of the Series A Preferred Stock. Instead of
     any fractional interest in a Common Share which would otherwise be
     deliverable upon the conversion of a share of Series A Preferred Stock (or
     fraction thereof), the corporation shall pay to the holder of such share an
     amount in cash (computed to the nearest cent) equal to the daily closing
     price (as referred to in the definition of "Closing Price") on the Trading
     Date immediately preceding the date of conversion multiplied by the
     fraction of a share of Common Stock represented by such fractional
     interest. If more than one share (or fraction thereof) of Series A
     Preferred Stock shall be surrendered for conversion at one time by the same
     holder, the number of full shares of Common Stock issuable upon conversion
     thereof shall be computed on the basis of the aggregate number of shares of
     Series A Preferred Stock so surrendered.

          (d) The Conversion Price shall be adjusted from time to time as
     follows:

               (i) Stock Dividends and Stock Splits. If at any time after the
          Issue Date, (i) the corporation shall fix a record date for the
          issuance of any dividend payable in Common Shares or (ii) the number
          of Common Shares shall be increased by a subdivision or split-up of
          Common Shares, then, on the record date fixed for the determination of
          holders of Common Shares entitled to receive such dividend or
          immediately after the effective date of such subdivision or split-up,
          as the case may be, the number of shares to be

                                       13


<PAGE>


          delivered upon surrender of any share of Series A Preferred Stock for
          conversion will be appropriately increased so that each holder of
          Series A Preferred Stock thereafter will be entitled to receive the
          number of Common Shares that such holder would have owned immediately
          following such action had such share been surrendered for conversion
          immediately prior thereto, and the Conversion Price will be
          appropriately adjusted. The time of occurrence of an event giving rise
          to an adjustment made pursuant to this paragraph d(i) shall, in the
          case of a subdivision or split-up, be the effective date thereof and
          shall, in the case of a stock dividend, be the record date thereof.

               (ii) Combination of Stock. If the number of Common Shares
          outstanding at any time after the Issue Date shall have been decreased
          by a combination of the outstanding Common Shares, then, immediately
          after the effective date of such combination, the number of shares to
          be delivered upon surrender of any share of Series A Preferred Stock
          for conversion will be appropriately decreased so that each holder
          thereafter will be entitled to receive the number of Common Shares
          that such holder would have owned immediately following such action
          had such share been surrendered for conversion immediately prior
          thereto, and the Conversion Price will be appropriately adjusted.

               (iii) Reorganization. If any capital reorganization of the
          corporation, or any reclassification of the Common Stock, or any
          consolidation of the corporation with or merger of the corporation
          with or into any other corporation or any sale, lease or other
          transfer of all or substantially all of the assets of the corporation
          to any other person (including any individual, partnership, joint
          venture, corporation, trust or group thereof) shall be effected in
          such a way that the Common Shares shall be converted into the right to
          receive stock, securities or other property (including cash or any
          combination thereof), then, upon surrender of the Series A Preferred
          Stock for conversion in accordance with the terms of this Section 6,
          each holder shall have the right to receive the kind and amount of
          stock and other securities and property receivable (including cash or
          any combination thereof) upon such reorganization, reclassification,
          consolidation, merger or sale, lease or other transfer by a holder of
          the number of Common Shares that such holder of the Series A Preferred
          Stock would have been entitled to receive upon surrender of the Series
          A Preferred Stock for conversion pursuant to this Section 6 had the
          Series A Preferred Stock been surrendered for conversion immediately
          prior to such reorganization, reclassification, consolidation, merger
          or sale, lease or other transfer. As a condition to any such
          transaction, the corporation shall require such person to confirm in
          writing its obligations hereunder.

               (iv) Rights Offering. If the corporation at any time after the
          Issue Date shall issue or sell or fix a record date for the issuance
          of rights, options or warrants to all holders of Common Shares
          entitling the holders thereof to subscribe for or purchase or
          otherwise acquire Common Shares (or securities

                                       14


<PAGE>


          convertible into or exchangeable for Common Shares), in any such case,
          at a price per share (or having a conversion price or exchange value
          per share) that, together with the value (if for consideration other
          than cash, as determined in good faith by the Board of Directors) of
          any consideration paid for any such rights, options or warrants is
          less than the Closing Price of the Common Shares as of the date of
          such issuance or sale or as of such record date, then, immediately
          after such record date, the number of shares to be delivered upon
          surrender of the Series A Preferred Stock for conversion shall be
          appropriately increased so that each holder thereafter will be
          entitled to receive the number of Common Shares determined by
          multiplying the number of Common Shares such holder would have been
          entitled to receive immediately before the date of such issuance or
          sale on such record date by a fraction, the numerator of which will be
          the number of Common Shares outstanding on such date plus the number
          of additional Common Shares offered for subscription or purchase (or
          into which the convertible securities so offered are initially
          convertible) and the denominator of which will be the number of Common
          Shares outstanding on such date plus the number of Common Shares that
          the aggregate offering price of the total number of shares so offered
          for subscription or purchase would purchase at such Closing Price, and
          the Conversion Price shall be appropriately adjusted. Notwithstanding
          the foregoing, rights issued by the corporation to all holders of its
          Common Shares entitling the holders thereof to subscribe for or
          purchase securities of the corporation, which rights (i) are deemed to
          be transferred with such Common Shares, (ii) are not exercisable, and
          (iii) are also issued in respect of future issuances of Common Shares
          pursuant to a stockholder rights plan or similar plan of the
          corporation, in each case in clauses (i) through (iii) until the
          occurrence of a specified event or events, shall for purposes of this
          paragraph (d) of this Section 6 not be deemed issued until the
          occurrence of the earliest such specified event.

               (v) Certain Issuances. If the corporation shall sell or issue any
          Additional Stock (as defined below), the Conversion Price in effect
          immediately prior to each such sale or issuance shall forthwith
          (except as otherwise provided in this clause (v)) be adjusted to a
          price determined by multiplying such Conversion Price by a fraction:

               (x)  the numerator of which shall be

                    (1) the aggregate number of Common Shares outstanding
               immediately prior to such sale (assuming conversion of all
               outstanding shares of Series A Preferred Stock into Common
               Shares); plus

                    (2) the number of Common Shares which the aggregate
               consideration received by the corporation for the shares of
               Additional Stock would purchase at $6.75 per share; and


                                       15


<PAGE>


               (y)  the denominator of which shall be

                    (1) the aggregate number of outstanding Common Shares
               immediately prior to such sale (assuming conversion of all
               outstanding shares of Series A Preferred Stock into Common
               Shares); plus

                    (2) the number of such shares of Additional Stock so issued
               or sold by the corporation.

          The consideration for the issuance of Common Shares shall be deemed to
     be the amount of cash paid therefor before deducting any reasonable
     discounts, commissions or other expenses allowed, paid or incurred by the
     corporation for any underwriting or otherwise in connection with the
     issuance and sale thereof or the value of other consideration received
     therefor as determined in good faith by the Board of Directors. In the case
     of the issuance of Additional Stock consisting of Common Shares issuable
     under options to purchase or rights to subscribe for Common Shares,
     securities by their terms convertible into or exchangeable for Common
     Shares or options to purchase or rights to subscribe for such convertible
     or exchangeable securities, the following provisions shall apply:

                    (A) The aggregate maximum number of Common Shares
               deliverable upon exercise of such options to purchase or rights
               to subscribe for Common Shares shall be deemed to have been
               issued as Additional Stock at the time such options or rights
               were issued and for a consideration equal to the cash
               consideration, if any, received by the corporation upon the
               issuance of such options or rights plus the minimum purchase or
               exercise price provided in such options or rights for the Common
               Shares covered thereby.

                    (B) The aggregate maximum number of Common Shares
               deliverable upon conversion of or in exchange for any such
               convertible or exchangeable securities or upon the exercise of
               options to purchase or rights to subscribe for such convertible
               or exchangeable securities and subsequent conversion or exchange
               thereof shall be deemed to have been issued as Additional Stock
               at the time such securities were issued or such options or rights
               were issued and for a consideration equal to the consideration,
               if any, received by the corporation for any such securities and
               related options or rights (excluding any cash received on account
               of accrued interest or accrued dividends), plus the additional
               consideration, if any, to be received by the corporation upon the
               conversion or exchange of such securities or the exercise of any
               related options or rights.


                                       16


<PAGE>


                    (C) In the event of any change in the number of Common
               Shares deliverable or any change in the consideration payable to
               the corporation upon exercise of such options or rights or upon
               conversion of or in exchange for such convertible or exchangeable
               securities, including, but not limited to, a change resulting
               from the antidilution provisions thereof, the Conversion Price,
               obtained with respect to the adjustment which was made upon the
               issuance of such options, rights or securities, and any
               subsequent adjustments based thereon, shall be recomputed to
               reflect such change, but in no case shall a further adjustment be
               made for the actual issuance of Common Shares or any payment of
               such consideration upon the exercise of any such options or
               rights or the conversion or exchange of such securities;
               provided, however, that this section shall not have any effect on
               any conversion of the Series A Preferred Stock prior to such
               change; provided, further, that if such adjustment would result
               in an increase in the Conversion Price then in effect, such
               adjustment shall not be effective until 30 days after written
               notice thereof has been given by the corporation to all holders
               of the Series A Preferred Stock; and provided, further that the
               Conversion Price shall in no event be increased to an amount
               greater than that which would have been effective without regard
               to the original issuance.

                    (D) Upon the expiration of any such options or rights, the
               termination of any such rights to convert or exchange or the
               expiration of any options or rights related to such convertible
               or exchangeable securities, the Conversion Price obtained with
               respect to the adjustment which was made upon the issuance of
               such options, rights or securities or options or rights related
               to such securities, and any subsequent adjustments based thereon,
               shall be recomputed to reflect the issuance of only the number
               Common Shares actually issued upon the exercise of such options
               or rights, upon the conversion or exchange of such securities or
               upon the exercise of the options or rights related to such
               securities; provided however that this section shall not have any
               effect on any conversion of Series A Preferred Stock prior to
               such expiration or termination; and provided, further that the
               Conversion Price shall in no event be increased to an amount
               greater than that which would have been effective without regard
               to the original issuance.

               (vi) Additional Stock. "Additional Stock" shall mean any Common
          Shares issued by the corporation after the Issue Date for a
          consideration per share of $6.75 or less, as adjusted for stock
          splits, dividends and combinations (or Common Shares issuable pursuant
          to options or rights or convertible or

                                       17


<PAGE>


          exchangeable securities as referred to in paragraph (v) above if the
          consideration therefor as provided in clause (A) therein is $6.75 or
          less, as adjusted as aforesaid), other than

                    (A) Common Shares issued pursuant to any transaction
               described in Section 2(d) or 6(d)(i)-(iv) hereof,

                    (B) Common Shares issued or issuable to employees,
               directors, consultants or advisors of the corporation directly or
               pursuant to a stock plan or stock purchase plan or agreement,
               which have been issued as of the date hereof or are issuable
               pursuant to agreements entered into on or prior to the date
               hereof. Any further Common Shares issued or issuable to
               employees, directors, consultants or advisors of the corporation
               other than those referenced in the preceding sentence that in the
               aggregate do not exceed 5% of the outstanding Common Shares at
               such Common Shares date of issuance or deemed date of issuance,

                    (C) Common Shares issued in payment of dividends or upon
               conversion of the Series A Preferred Stock, and

                    (D) Securities issued or issuable for consideration other
               than solely cash in connection with any license, collaborative,
               corporate partnership, co-marketing or copromotion, research and
               development or similar arrangement.

               (vii) No Adjustments to Exercise Price. No adjustment in the
          number of Common Shares issuable upon conversion and consequently the
          Conversion Price in accordance with the provisions of Sections
          6(d)(i)(v) above need be made if such adjustment would amount to a
          change in such Conversion Price of less than $.05; provided, however,
          that the amount by which any adjustment is not made by reason of the
          provisions of this section shall be carried forward and taken into
          account at the time of any subsequent adjustment in the Conversion
          Price; and provided further, that adjustment shall be required and
          made in accordance with the provisions of this Section 6 not later
          than such time as may be required in order to preserve the tax free
          nature of a distribution to the holder of any Common Share. Anything
          in this Section 6 to the contrary notwithstanding, the corporation
          shall be entitled to the extent permitted by law to make such
          reductions in the Conversion Price, in addition to those required by
          this Section 6, as it in its sole discretion shall determine to be
          advisable in order to avoid or diminish any income tax to any holder
          of Common Share resulting from any dividend or distribution of capital
          stock or rights or warrants to purchase capital stock or from any
          event treated as such for income tax purposes of for any other
          reasons.


                                       18


<PAGE>


               (viii) Readjustments, etc. If an adjustment is made under
          Sections 6(d)(i)-(v) above, and the event to which the adjustment
          relates does not occur, then any adjustments in the Conversion Price
          or Common Shares to be delivered upon surrender of the Series A
          Preferred Stock for conversion that were made in accordance with such
          paragraphs shall be adjusted back to the Conversion Price and the
          number of Common Shares to be delivered upon surrender of the Series A
          Preferred Stock for conversion that were in effect immediately prior
          to the record date for such event (subject to the effect of any
          subsequent intervening adjustments).

          (e) Whenever the Conversion Price is adjusted as herein provided, the
     corporation shall promptly file in the custody of its Secretary or an
     Assistant Secretary at its principal office and with the Transfer Agent an
     officers' certificate setting forth the adjusted number of Common Shares to
     be delivered upon surrender of the Series A Preferred Stock for conversion
     and the Conversion Price after such adjustment, the method of calculation
     thereof and a brief statement of the facts requiring such adjustment and
     upon which such adjustment is based. Promptly after each such adjustment,
     the corporation shall cause a copy of such certificate to be mailed to the
     holder of each share of Series A Preferred Stock at his or her last address
     as shown on the stock books of the corporation. Each such officers'
     certificate shall be made available at all reasonable times for inspection
     by each holder of Series A Preferred Stock.

          (f) In any case in which paragraph (d) of this Section 6 provides that
     an adjustment shall become effective immediately after a record date for an
     event and the date fixed for conversion pursuant to Section 6 occurs after
     such record date but before the occurrence of such event, the corporation
     may defer until the actual occurrence of such event (A) issuing to the
     holder of any share of Series A Preferred Stock surrendered for conversion
     the additional Common Shares issuable upon such conversion by reason of the
     adjustment required by such event over and above the Common Shares issuable
     upon such conversion before giving effect to such adjustment and (B) paying
     to such holder any amount in cash in lieu of any fraction pursuant to
     paragraph (c) of this Section 6.

          (g) The corporation covenants that it will at all times reserve and
     keep available, free from preemptive rights, out of the aggregate of its
     authorized but unissued Common Shares the maximum number of Common Shares
     into which all shares of the Series A Preferred Stock from time to time be
     converted, but Common Shares held in the treasury of the corporation may,
     in its discretion, be delivered upon any conversion of shares of Series A
     Preferred Stock.

          Before taking any action which would cause an adjustment reducing the
     Conversion Price below the then par value, if any, of the Common Shares
     issuable upon conversion of the Series A Preferred Stock, the corporation
     will take any corporate action which may, in the opinion of its counsel, be
     necessary in order that the corporation may validly and legally issue
     Common Shares at such adjusted

                                       19

<PAGE>


     Conversion Price, which shares shall be fully-paid and nonassessable and
     free from all taxes, liens and charges with respect to the issue thereof.

          Prior to the delivery of any securities which the corporation shall be
     obligated to deliver upon conversion of the Series A Preferred Stock, the
     corporation will endeavor in good faith and as expeditiously as possible to
     comply with all federal and state laws and regulations thereunder requiring
     the registration of such securities with, or any approval of or consent to
     the delivery thereof by, any governmental authority.

          (h) The corporation will pay any and all documentary stamp or similar
     issue or transfer taxes payable in respect of the issue or delivery of the
     shares of Series A Preferred Stock (or any other securities issued on
     account of the Series A Preferred Stock pursuant hereto) or Common Shares
     on conversion of the Series A Preferred Stock pursuant hereto; provided,
     however, that the corporation shall not be required to pay any tax which
     may be payable in respect of any transfer involved in the issue or delivery
     of shares of Series A Preferred Stock (or any other securities issued on
     account of the Series A Preferred Stock pursuant hereto) or Common Shares
     in a name other than the name in which the shares of Series A Preferred
     Stock with respect to which such Common Shares are issued were registered,
     and the corporation shall not be required to make any issue or delivery
     unless and until the person requesting such issue or delivery has paid to
     the corporation the amount of any such tax.

          (i) If:

               (i) the corporation shall authorize the issuance to all holders
          of Common Shares of rights or warrants to subscribe for or purchase
          Common Shares or any other subscription rights or warrants; or

               (ii) the corporation shall authorize the distribution to all
          holders of Common Shares of evidences of its indebtedness or assets
          (other than cash dividends payable out of retained earnings,
          distributions excluded from the operation of subparagraph (d)(iv) of
          this Section 6, stock dividends or securities issued pursuant to any
          stockholder rights plan or any similar plan of the corporation); or

               (iii) there shall be any capital reorganization or
          reclassification of the Common Shares (other than a subdivision or
          combination of the outstanding Common Shares, an increase in the
          authorized capital stock of the corporation not involving the issuance
          of any shares thereof, or a change in par value of the Common Shares),
          or any other consolidation or merger to which the corporation is a
          party (other than a consolidation or merger with a subsidiary in which
          the corporation is the continuing corporation and that does not result
          in any reclassification or change in the Common Shares outstanding) or
          a sale, lease or transfer of all or substantially all of the assets of
          the corporation; or


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<PAGE>


               (iv) there shall be a voluntary or involuntary dissolution,
          liquidation or winding-up of the corporation; or

               (v) there shall be any other event that would result in an
          adjustment pursuant to paragraph (d) of this Section 6 of the
          Conversion Price or the number of Common Shares that may be purchased
          upon the conversion of the Series A Preferred Stock;

          then the corporation will cause to be filed with the Transfer Agent
          and to be mailed to each holder of Series A Preferred Stock by first
          class mail addressed to such holder at the address appearing in the
          stock records of the corporation, at least twenty (20) days (or ten
          (10) days in any case specified in clause (i) or (ii) above) before
          the applicable record or effective date hereinafter specified, a
          notice stating (A) the date as of which the holders of Common Shares
          of record entitled to receive any such rights, warrants or
          distributions are to be determined or (B) the date on which any such
          consolidation, merger, sale, lease, transfer, dissolution, liquidation
          or winding-up is expected to become effective, and the date as of
          which it is expected that holders of Common Shares of record will be
          entitled to exchange their Common Shares for securities or other
          property, if any, deliverable upon such reorganization,
          reclassification, consolidation, merger, sale, lease, transfer,
          dissolution, liquidation or winding-up. Such notice shall also state
          whether such transaction will result in any adjustment in the
          Conversion Price and, if so, shall state what the adjusted Conversion
          Price will be and when it will become effective. The failure to give
          such notice or any defect therein shall not affect the legality or
          validity of any distribution right, warrant, consolidation, merger,
          sale, lease, transfer, dissolution, liquidation or winding-up or the
          vote upon any such action.

     7.   Redemption at Option of Holder Upon a Fundamental Change.

          (a) If a Fundamental Change (as defined in paragraph(c) of this
     Section 7) occurs, each holder of Series A Preferred Stock shall have the
     right, at the holder's option, to require the corporation to repurchase all
     of such holder's Series A Preferred Stock, or any portion thereof that has
     an aggregate liquidation value that is a multiple of $50.00, on the date
     (the "Repurchase Date") selected by the corporation that is not less than
     ten nor more than 20 days after the Final Surrender Date (as defined in
     paragraph (b) of this Section 7), at a price per share equal to the
     Redemption Price. The corporation may, at its option, pay all or any
     portion of the repurchase price upon a Fundamental Change in Common Shares.
     For purposes of calculating the number of Common Shares issuable upon such
     repurchase, the value of any such Common Shares will be equal to the
     Closing Price of such Common Shares as of the Repurchase Date. Payment may
     not be made in Common Shares unless such shares (i) have been, or will be
     registered on or prior to the Final Surrender Date (as defined in the
     paragraph (b) of this Section 7) under the Securities Act of 1933, as
     amended, or are freely tradable pursuant to an exemption thereunder

                                       21


<PAGE>



     and (ii) are listed on a United States national securities exchange or
     quoted on the NNM at the time of payment.

          (b) Within 30 days after the occurrence of a Fundamental Change, the
     corporation must mail to all holders of record of the Series A Preferred
     Stock a Company Notice containing the information set out in paragraph (d)
     of Section 4, except that, for purposes of this Section 7 only, instead of
     stating that a redemption is occurring at the option of the corporation,
     the Company Notice shall describe the occurrence of such Fundamental Change
     and of the repurchase right arising as a result thereof. The corporation
     must cause a copy of such notice to be published in a newspaper of general
     circulation in the Borough of Manhattan, the City of New York. At least two
     Business Days prior to the Repurchase Date, the corporation must publish a
     similar notice stating whether and to what extent the repurchase price will
     be paid in cash or Common Shares. To exercise the repurchase right, a
     holder of Series A Preferred Stock must surrender, on or before the date
     which is, subject to any contrary requirements of applicable law, 60 days
     after the date of mailing of the Company Notice (the "Final Surrender
     Date"), the certificates representing the Series A Preferred Stock with
     respect to which the right is being exercised, duly endorsed for transfer
     to the corporation, together with a written notice of election.

          (c) The term "Fundamental Change" shall mean any of the following:

               (i) a "person" or "Group" (within the meaning of Section 13(d)(3)
          of the Securities Exchange Act of 1934, as amended (the "Exchange
          Act")), together with any affiliates thereof, becoming the "beneficial
          owner" (as defined in Rule 13d-3 under the Exchange Act) of Voting
          Shares (as defined in this paragraph (c)) of the corporation entitled
          to exercise more than 60% of the total voting power of all outstanding
          Voting Shares of the corporation (including any Voting Shares that are
          not then outstanding of which such person or Group is deemed the
          beneficial owner);

               (ii) any consolidation of the corporation with, or merger of the
          corporation into, any other person, any merger of another person into
          the corporation, or any sale, lease or transfer of all or
          substantially all of the assets of the corporation to another person
          (other than a merger (a) which results in the holders of Common Stock
          of the corporation immediately prior to giving effect to such
          transaction owning shares of capital stock of the surviving
          corporation in such transaction representing in excess of 40% of the
          total voting power of all shares of capital stock of such surviving
          corporation entitled to vote generally in the election of directors
          and (b) in which the shares of the surviving corporation held by such
          holders are, or immediately upon issuance will be, listed on a
          national securities exchange or quoted on the NNM, are not subject to
          any right of repurchase by the issuer thereof or any third party and
          are not otherwise subject to any encumbrance as a result of such
          transaction, provided, that the surviving corporation amends its
          charter or

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<PAGE>


          certificate of incorporation to include the Series A Preferred Stock
          and its terms as set forth herein);

               (iii) the sale, transfer or other disposition (or the entry into
          a commitment to sell, transfer or otherwise dispose of all or any
          portion of the shares of Genta Jago Technologies B.V. ("Genta Jago")
          held at any time by the corporation (or the imposition of any material
          lien on such shares which lien is not removed within 30 days of
          imposition) and the sale (or functional equivalent of a sale) of all
          or substantially all of the assets of Genta Jago; or

               (iv) the substantial reduction or elimination of a public market
          for the Common Shares as the result of repurchases, delisting or
          deregistration of the Common Shares or corporate reorganization or
          recapitalization undertaken by the corporation;

     provided, however, that a Fundamental Change shall not occur under clause
     (i) or (ii) above if, (x) as of the fifteenth (15th) Trading Date after the
     public announcement by the corporation of such transaction and, if later,
     three days prior to the consummation of such transaction, the Closing Price
     is at least equal to 110% of the Conversion Price then in effect on such
     dates and (y) in the case of clause (ii) above, at least 90% of the
     consideration (excluding cash payments for fractional shares) in such
     transaction or transactions to the holders of Common Shares consists of
     shares of common stock that are, or immediately upon issuance will be,
     listed on a national securities exchange or quoted on the NNM, and as a
     result of such transaction or transactions, the Series A Preferred Stock
     becomes convertible into such common stock.

          (d) An election by a holder of Series A Preferred Stock to have the
     corporation repurchase shares of Series A Preferred Stock pursuant to
     subsection 7(a) shall become irrevocable at the close of business on the
     relevant Repurchase Date.

          (e) The corporation agrees that it will not complete any Fundamental
     Change described in subsection 7(c) unless proper provision has been made
     to satisfy its obligations under this Section 7. For purposes of this
     Section 7, "Voting Shares" is defined to mean all outstanding shares of any
     class or classes (however designated) of capital stock entitled to vote
     generally in the election of members of the Board of Directors.

     8. Ranking. Any class or classes of stock of the corporation shall be
deemed to rank:

          (a) prior to the Series A Preferred Stock, as to dividends or as to
     distribution of assets upon liquidation, dissolution or winding up, if the
     holders of such class shall be entitled to the receipt of dividends or of
     amounts distributable upon liquidation, dissolution or winding up, as the
     case may be, in preference or priority to the holders of Series A Preferred
     Stock.

                                       23


<PAGE>


          (b) on a parity with the Series A Preferred Stock, as to dividends or
     as to distribution of assets upon liquidation, dissolution or winding up,
     whether or not the dividend rates, dividend payment dates or redemption or
     liquidation prices per share thereof be different from those of the Series
     A Preferred Stock, if the holders of such class of stock and the Series A
     Preferred Stock shall be entitled to the receipt of dividends or of amounts
     distributable upon liquidation, dissolution or winding up, as the case may
     be, in proportion to their respective amounts of accrued and unpaid
     dividends per share or liquidation prices, without preference or priority
     of one over the other; and

          (c) junior to the Series A Preferred Stock, as to dividends or as to
     the distribution of assets upon liquidation, dissolution or winding up, if
     such stock shall be Common Stock or if the holder of Series A Preferred
     Stock shall be entitled to receipt of dividends or of amounts distributable
     upon liquidation, dissolution or winding up, as the case may be, in
     preference or priority to the holders of shares of such stock.

     9.   Voting.

          (a) Except as herein provided or as otherwise from time to time
     required by law, holders of Series A Preferred Stock shall have no voting
     rights.

          (b) So long as any shares of the Series A Preferred Stock remain
     outstanding, the consent of the holders of at least two-thirds (2/3) of the
     shares of Series A Preferred Stock outstanding at the time, voting
     separately as a class, given in person or by proxy either in writing (as
     permitted by law and this Restated Certificate of Incorporation and By-laws
     of the corporation) or at any special or annual meeting, shall be necessary
     to permit, effect or validate any one or more of the following:

               (i) the authorization, creation or issuance, or any increase in
          the authorized or issued amount, of any class or series of stock
          ranking prior to the Series A Preferred Stock as to dividends or the
          distribution of assets upon liquidation, dissolution or winding up;

               (ii) the creation, authorization or issuance of any class or
          series of common stock other than the class of Common Stock authorized
          for issuance under the Certificate of Incorporation as in effect on
          September 1, 1993 subject to changes to the terms thereof hereafter
          made to this Restated Certificate of Incorporation; provided that (A)
          there shall be no more than one class (and there shall be no separate
          series) of Common Stock and (B) the corporation will not permit the
          par value or the determined or stated value of any shares of the
          Common Stock receivable upon the conversion of the shares of Series A
          Preferred Stock to exceed the amount payable therefor upon such
          conversion and (C) the corporation will not take any action which
          results in any adjustment of the current Conversion Price under this
          Article IV(B) of this Restated Certificate of Incorporation if the
          total number of shares of Common

                                       24


<PAGE>


          Stock then available for issuance upon conversion of all shares of
          Series A Preferred Stock (and upon conversion of all other then
          outstanding shares of the corporation's capital stock convertible into
          Common Stock) would be insufficient to satisfy all such conversion
          rights;

               (iii) the amendment, alteration or repeal, whether by merger,
          consolidation or otherwise, of any of the provisions of this Restated
          Certificate of Incorporation which would adversely affect any right,
          preference, privilege or voting power of the Series A Preferred Stock
          or of the holders thereof; provided, however, that any increase in the
          amount of authorized preferred stock or the creation and issuance of
          other series of preferred stock, or any increase in the amount of
          authorized shares of such series or of any other series of Preferred
          Stock, in each case ranking on a parity with or junior to the Series A
          Preferred Stock with respect to the payment of dividends and the
          distribution of assets upon liquidation, dissolution or winding up,
          shall not be deemed to adversely affect such rights, preferences or
          voting powers;

               (iv) the authorization of any reclassification of the Series A
          Preferred Stock;

               (v) any increase in the number of shares of Series A Preferred
          Stock authorized for issuance;

               (vi) the creation, authorization or issuance of any series or
          class of stock or any other obligation or security convertible into
          any capital stock which capital stock is prohibited under clauses (i)
          or (ii) above;

               (vii) the amendment of this Article IV(B) of the Restated
          Certificate of Incorporation; or

               (viii) the issuance of any additional shares of Series A
          Preferred Stock (excluding the issuance of share certificates upon
          transfers or exchanges of shares by holders (other than the
          corporation) or upon replacement of lost, stolen, damaged or mutilated
          share certificates).

          (c) Additional Voting Rights.

          If on the fourth anniversary of the Issue Date any shares of the
     Series A Preferred Stock are outstanding, the size of the Board of
     Directors of the corporation shall be increased by two (2) and during the
     period (hereinafter in this Section 9(c) called the "Class Voting Period")
     commencing upon such date and ending on the date on which no shares of
     Series A Preferred Stock remain outstanding, the holders of at least
     two-thirds (2/3) of the then outstanding shares of Series A Preferred
     Stock, by the affirmative vote in person or by proxy at a special meeting
     of stockholders called for such purpose (or at any adjournment thereof) by
     holders of at least 25% of the then

                                       25



<PAGE>


     outstanding shares of Series A Preferred Stock or at any annual meeting of
     stockholders, or by written consent delivered to the Secretary of the
     corporation, with the holders of the Series A Preferred Stock voting as a
     class and with each share of Series A Preferred Stock having one vote,
     shall be entitled, as a class, to the exclusion of the holders of all other
     classes or series of capital stock of the corporation, to elect two (2)
     directors of the corporation. Of these two directors, one shall be entitled
     to be a member of the Executive Committee of the Board of Directors (or any
     committee acting with the powers and attributes of an executive committee
     of a board of directors).

          (ii) At any time when such voting right under this Section 9(c) shall
     have vested in the holders of shares of Series A Preferred Stock entitled
     to vote thereon, and if such right shall not already have been initially
     exercised, an officer of the corporation shall, upon the written request of
     at least 25% of the holders of record of shares of the Series A Preferred
     Stock then outstanding, addressed to the Treasurer of the corporation, call
     a special meeting of holders of shares of the Series A Preferred Stock.
     Such meeting shall be held at the earliest practicable date upon the notice
     required for annual meetings of stockholders at the place for holding
     annual meetings of stockholders of the corporation or, if none, at a place
     designated by the Treasurer of the corporation. If such meeting shall not
     be called by the proper officers of the corporation within 30 days after
     the personal service of such written request upon the Treasurer of the
     corporation, or within 30 days after mailing the same within the United
     States, by registered mail, addressed to the Treasurer of the corporation
     at its principal office (such mailing to be evidenced by the registry
     receipt issued by the postal authorities), then the holders of record of at
     least 25% of the shares of Series A Preferred Stock then outstanding may
     designate in writing any person to call such meeting at the expense of the
     corporation, and such meeting may be called by such person so designated
     upon the notice required for annual meetings of stockholders and shall be
     held at the same place as is elsewhere provided in this paragraph or, if
     none, at a place designated by the person selected to call the meeting. Any
     holder of shares of Series A Preferred Stock then outstanding that would be
     entitled to vote at such meeting shall have access to the stock books of
     the corporation for the purpose of causing a meeting of stockholders to be
     called pursuant to the provisions of this paragraph.

          (iii) Any director who shall have been elected by the holders of
     Series A Preferred Stock pursuant to this Section 9(c) may be removed at
     any time during the Class Voting Period, by the vote of the holders of at
     least two-thirds (2/3) of all of the then outstanding shares of Series A
     Preferred Stock, voting as a separate class in person or by proxy at a
     special meeting of stockholders called for such purpose by the holders of
     at least 25% of the outstanding shares of Series A Preferred Stock. Any
     director who shall have been elected by the holders of Series A Preferred
     Stock may not be removed at

                                       26

<PAGE>


     any time during the Class Voting Period without the consent of the holders
     of at least two-thirds (2/3) of all of the outstanding shares of Series A
     Preferred Stock. Any vacancy created by the removal, death or resignation
     of a director elected by the holders of Series A Preferred Stock may be
     filled during the Class Voting Period by the holders of at least two-thirds
     (2/3) of all of the outstanding shares of Series A Preferred Stock by vote
     in person or by proxy at a special meeting of stockholders of the
     corporation called for such purpose by holders of at least 25% of the
     outstanding shares of Series A Preferred Stock.

          (iv) During the Class Voting Period, other than to increase the size
     of the Board of Directors in accordance with clause (i) of this Section
     9(c), the size of the Board of Directors shall not otherwise be changed
     without the vote of the holders of at least two-thirds (2/3) of all of the
     then outstanding shares of Series A Preferred Stock, voting as a separate
     class.

          (v) The term of any director elected pursuant to the provisions of
     this Section 9(c) shall in all events expire at the end of the Class Voting
     Period and the size of the Board of Directors shall be reduced accordingly.

     10. Record Holders. The corporation and the Transfer Agent may deem and
treat the record holder of any shares of Series A Preferred Stock as the true
and lawful owner thereof for all purposes, and neither the corporation nor the
Transfer Agent shall be affected by any notice to the contrary.

     11. Notices. Except as may otherwise be provided for herein, all notices
referred to herein shall be in writing, and all notices hereunder shall be
deemed to have been given upon receipt, in the case of a notice of conversion
given to the corporation as contemplated in Section 6(b) hereof, or, in all
other cases, upon the earlier of receipt of such notice or three Business Days
after the mailing of such notice if sent by registered mail (unless first-class
mail shall be specifically permitted for such notice under the terms of this
Restated Certificate of Incorporation) with postage prepaid, addressed: if to
the corporation, to its offices at 3550 General Atomics Court, San Diego,
California 92121 (Attention: Investor Relations Department) or to an agent of
the corporation designated as permitted by this Restated Certificate of
Incorporation, or, if to any holder of the Series A Preferred Stock, to such
holder at the address of such holder of the Series A Preferred Stock as listed
in the stock record books of the corporation (which may include the records of
any transfer agent for the Series A Preferred Stock); or to such other address
as the corporation or holder, as the case may be, shall have designated by
notice similarly given.


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