PHARMOS CORP
8-K, EX-4.2, 2000-09-11
PHARMACEUTICAL PREPARATIONS
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                                                                     EXHIBIT 4.2

     THIS SECURITY HAS NOT BEEN REGISTERED  UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, OR ANY STATE SECURITIES LAWS. IT MAY NOT BE TRANSFERRED, ASSIGNED, SOLD
OR OFFERED FOR SALE EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER
SAID ACT AND ANY APPLICABLE  STATE  SECURITIES LAW OR AN OPINION OF COUNSEL,  IN
FORM AND SUBSTANCE  REASONABLY  ACCEPTABLE TO THE COMPANY,  THAT REGISTRATION IS
NOT  REQUIRED  BECAUSE  OF  AN  APPLICABLE   EXEMPTION  FROM  SUCH  REGISTRATION
REQUIREMENTS.

         No. [_]                                                      $[_______]

         Dated: September 1, 2000


                               PHARMOS CORPORATION

                 6% CONVERTIBLE DEBENTURE DUE FEBRUARY 28, 2002

     THIS  DEBENTURE  ("Debenture")  is  one  of  a  duly  authorized  issue  of
Debentures of PHARMOS CORPORATION (the "Company"),  a corporation duly organized
and existing under the laws of the state of Nevada,  designated as the Company's
6%  Convertible  Debentures  Due February 28,  2002,  in an aggregate  principal
amount of Eight Million U.S. Dollars (U.S. $8,000,000) (the "Debentures").

     FOR VALUE RECEIVED,  the Company promises to pay to  [____________________]
the initial holder hereof, or its order (including  successors-in-interest,  the
"Holder"),  the principal sum of  [_________________]  on February 28, 2002 (the
"Maturity Date") and to pay interest on the principal sum outstanding under this
Debenture  ("Outstanding  Principal  Amount"),  at the  rate  of 6%  per  annum,
compounded  semi-annually,  payable  in  arrears  on the  first day of March and
September  of each year and on the  Maturity  Date  (each an  "Interest  Payment
Date"),  with the first such payment due on March 1, 2000. Interest shall accrue
daily  commencing on the date hereof and shall continue until payment in full of
all amounts due under this  Debenture.  The  interest so payable will be paid to
the person in whose name this  Debenture  is  registered  on the  records of the
Company  regarding  registration  and transfers of the Debenture (the "Debenture
Register").  Capitalized  terms used herein and not otherwise defined shall have
the meanings set forth in the Purchase  Agreement  dated as of September 1, 2000
between  the  Company  and  the  Holder  (the   "Purchase   Agreement")  or  the
Registration  Rights Agreement dated as of September 1, 2000 between the Company
and the Holder (the "Registration Rights Agreement").

     The interest on this Debenture is payable, at the Company's option:

          (a) in such coin or  currency  of the United  States as of the time of
payment is legal tender for payment of public and private debts,  at the address
last appearing on the Debenture Register of the Company as designated in writing
by the Holder hereof from time to time;

<PAGE>

          (b) by adding the amount thereof to the Outstanding  Principal  Amount
due under this  Debenture  ("PIK  Interest").  For example,  if the  Outstanding
Principal  Amount were $1,000 and the interest  payment  were $30,  then the new
Outstanding Principal Amount after the Interest Payment Date would be $1,030.

     Except as herein  provided for  interest,  all amounts  payable  under this
Debenture shall be paid as provided in clause (a) above.

     The  Company  shall   exercise  its  option   hereunder  by  delivering  an
irrevocable  statement  in the form of  Exhibit 1 hereto  ("Payment  Statement")
delivered  at least  ten (10)  Trading  Days  prior to the  applicable  Interest
Payment Date and applicable for such Interest  Payment Date only. If the Payment
Statement is not timely delivered to the Holder as provided herein,  the payment
with  respect to such  Interest  Payment Date shall be in PIK  Interest.  If the
Company selects cash interest in the Payment Statement and fails to deliver such
cash on or before the Interest  Payment Date, the Holder shall have the right to
require the Company to pay PIK Interest in lieu  thereof.  Any PIK Interest when
so added to the Outstanding Principal Amount due under this Debenture shall, for
all  purposes  of  this  Debenture,  be  deemed  to be  part  of  the  principal
indebtedness  evidenced by this Debenture  including,  without  limitation,  for
purposes of determining interest payable hereunder after the applicable Interest
Payment  Date for which such PIK Interest is paid and amounts  convertible  into
Common Shares  hereunder  after the applicable  Interest  Payment Date for which
such PIK Interest is paid.

     The Company will pay any principal due and all accrued and unpaid  interest
due upon this  Debenture  to the person that is the Holder of this  Debenture on
the  records  of the  Company as of the  applicable  Interest  Payment  Date and
addressed  to  such  Holder  at the  last  address  appearing  on the  Debenture
Register.

     The  Outstanding  Principal  Amount and interest due  hereunder  shall bear
interest,  from and  after the day  following  the  occurrence  and  during  the
continuance of an Event of Default hereunder, at the per annum rate equal to the
lower of the Citibank  Prime Rate per annum plus six (6%) percent or the highest
rate permitted by law. The Holder shall have the option to receive such interest
as cash interest or PIK Interest and shall  exercise its option by delivering to
the Company a statement in a form substantially similar to the Payment Statement
which shall be effective  until the Holder  delivers an additional  statement to
the contrary.  If the Holder elects to receive the interest in cash, it shall be
payable on demand.

     Additional cash payments  (referred to as "delay payments") may be required
pursuant to the  Registration  Rights  Agreement if there occurs an "Interfering
Event" (as defined  therein),  or pursuant to the Purchase  Agreement  under the
terms set forth in Section 3.14  therein.  Such delay  payments,  if not paid in
cash when due,  may be  treated by the  Holder in its sole  discretion  as being
added to the Outstanding Principal Amount due under this Debenture.

     Subject to applicable law, any interest  otherwise payable that is not paid
for any applicable  period because it would exceed the highest rate permitted by
law shall become


                                       2
<PAGE>

payable whenever the payment  thereof,  together with other interest due for any
such subsequent period, would not exceed such highest legal rate.

     The Holder of this  Debenture  is entitled to certain  rights and  remedies
pursuant to the Purchase Agreement and Registration Rights Agreement,  including
without limitation  provisions  requiring mandatory redemption of the Debenture.
This Debenture does not provide voting rights to the Holder.

     This Debenture is subject to the following additional provisions:

     1. Exchange.

          (a) The Debentures are exchangeable  for an equal aggregate  principal
amount of  Debentures  of  different  denominations,  as requested by the Holder
surrendering  the same. No service charge will be made for such  registration or
transfer or exchange.

          (b) The Debentures are also  exchangeable for Debentures  identical to
those  exchanged  except  that the new  Debentures  shall set  forth the  actual
Conversion Price, which shall be determined promptly after the close of business
on the 7th Trading Day following  Closing  Date,  in accordance  herewith by the
Company and the  Investors.  In the event that the Company and the  Investors do
not agree on the actual Conversion Price, an accountant  mutually  designated by
the Company and the Holder(s) shall make such  determination.  No service charge
will be made for such registration or transfer or exchange.

     2. Transfers.  This Debenture may be transferred or exchanged in the United
States only in  compliance  with the  Securities  Act of 1933,  as amended  (the
"Act") and applicable state securities laws, or applicable exemptions therefrom.
Prior to due presentment  for transfer of this Debenture,  the Company may treat
the person in whose name this  Debenture  is duly  registered  on the  Company's
Debenture  Register as the owner hereof for the purpose of receiving  payment as
herein provided, whether or not this Debenture is overdue.

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

          "Act" shall have the meaning set forth in Section 2.

          "Adjustment Date" shall have the meaning set forth in Section 7(b)(i).

          "Affected  Conversion  Price"  shall  have the  meaning  set  forth in
Section 7(a).

          "Call Amount" shall have the meaning set forth in Section 6(a).

          "Change in Control  Consideration" shall have the meaning set forth in
Section 4 hereof.


                                       3
<PAGE>

          "Change in Control  Conversion Price" shall have the meaning set forth
in Section 4 hereof.

          "Change in Control  Transaction"  shall mean (i) any  consolidation or
merger of the  Company  with or into any other  corporation  or other  entity or
person (whether or not the Company is the surviving  corporation) occurs, or any
other corporate  reorganization or transaction or series of related transactions
in which in excess of 50% of the Company's voting power is transferred through a
merger,  consolidation,  tender offer or similar transaction occurs; or (ii) any
person (as defined in Section 13(d) of the  Securities  Exchange Act of 1934, as
amended (the "Exchange  Act")),  together with its affiliates and associates (as
such  terms are  defined  in Rule 405 under  the Act),  beneficially  owns or is
deemed to  beneficially  own (as  described in Rule 13d-3 under the Exchange Act
without regard to the 60-day exercise  period) in excess of 50% of the Company's
voting power;  (iii) there is a replacement of more than one-half of the members
of the Company's Board of Directors  which is not approved by those  individuals
who are members of the Company's Board of Directors on the date thereof; or (iv)
in one or a series of related transactions there is a sale or transfer of all or
substantially  all of the assets of the Company,  determined  on a  consolidated
basis.

          "Closing  Date" shall mean the date of the  original  issuance of this
Debenture.

          "Common  Stock" shall mean the common stock,  par value $0.03,  of the
Company.

          "Company" shall have the meaning set forth in the Preamble.

          "Conversion Notice" shall have the meaning set forth in Section 5(d).

          "Convertible  Securities " shall have the meaning set forth in Section
7(b)(ii).

          "Conversion Price" shall have the meaning set forth in Section 5(c).

          "Conversion Rate" shall have the meaning set forth in Section 5(b).

          "Debenture" shall have the meaning set forth in the Preamble.

          "Debentures" shall have the meaning set forth in the Preamble.

          "Debenture Register" shall have the meaning set forth in the Preamble.

          "Delay payments" shall have the meaning set forth in the Preamble.

          "DTC" shall have the meaning set forth in Section 5(d).

          "DWAC" shall have the meaning set forth in Section 5(d).


                                       4
<PAGE>

          "Escrow  Agreement"  shall have the meaning set forth in the  Purchase
Agreement.

          "FAST" shall have the meaning set forth in Section 5(d).

          "Holder  Conversion  Date" shall have the meaning set forth in Section
5(d).

          "Interest  Payment  Date"  shall  have the  meaning  set  forth in the
Preamble.

          "Maturity Date" shall have the meaning set forth in the Preamble.

          "Market  Price for Shares of Common Stock" shall mean the price of one
share of Common Stock determined as follows:

               (i) If the Common  Stock is  approved  for  trading on the NASDAQ
National Market System or the Nasdaq Small-Cap  Market,  the last reported "bid"
price thereon on the date of valuation;

               (ii) If (i) does not apply and the Common Stock is listed on NYSE
or the American  Stock  Exchange,  the closing bid price on such exchange on the
date of valuation;

               (iii) If  neither  (i) nor (ii)  apply  but the  Common  Stock is
quoted in the over-the-counter  market, another recognized exchange, on the pink
sheets or bulletin board,  (A) the last sales price on the date of valuation or,
if there is no such sales price,  (B) the mean between the last  reported  "bid"
and "asked" prices thereof on the date of valuation; and

               (iv) If neither  clause  (i),  (ii) or (iii) above  applies,  the
market value as determined by a nationally recognized investment banking firm or
other nationally  recognized  financial advisor retained by the Company for such
purpose,  taking into consideration,  among other factors, the earnings history,
book value and  prospects  for the  Company,  and the prices at which  shares of
Common Stock recently have been traded.  Such determination  shall be conclusive
and binding on all persons.

          "NYSE" shall mean the New York Stock Exchange.

          "Outstanding Principal Amount" shall have the meaning set forth in the
Preamble.

          "Payment Statement" shall have the meaning set forth in the Preamble.

          "PIK Interest" shall have the meaning set forth in the Preamble.

          "Pricing Period" shall have the meaning set forth in Section 5(c).


                                       5
<PAGE>

          "Public Announcement" shall mean any public filing with the Securities
and  Exchange  Commission,  any press  release by either the  Company or a third
party or any other  public  statement,  that  announces  a proposed  transaction
which, if consummated, would constitute a Change in Control Transaction.

          "Purchase Agreement" shall have the meaning set forth in the Preamble.

          "Redemption Date" shall have the meaning set forth in Section 6(a).

          "Redemption Notice" shall have the meaning set forth in Section 6(a).

          "Redemption  Occurrence"  shall have the  meaning set forth in Section
6(a).

          "Redemption Price" shall have the meaning set forth in Section 4(a).

          "Registration  Statement"  shall  have the  meaning  set  forth in the
Registration Rights Agreement.

          "Registration Rights Agreement" shall have the meaning set forth in

          "Restricted  Ownership Percentage" shall have the meaning set forth in
Section 12.

          "Trading  Day" shall mean a day on which the Common Stock is traded on
the NASDAQ Small-Cap Market or principal  exchange on which the Common Stock has
been listed (or any similar  organization  or agency  succeeding  such market or
exchange's functions of reporting prices).

     4. Change in Control, Etc.

          (a) If at any time there  occurs  any  Change in Control  Transaction,
Holder shall be entitled,  at its sole option,  to have the Company  redeem this
Debenture  in  whole  or in  part at a  Redemption  Price  equal  to 115% of the
Outstanding  Principal  Amount of this  Debenture  plus all  accrued  but unpaid
interest and delay  payments on this Debenture (the  "Redemption  Price").  Such
Holder shall be entitled to make such election at any time a Public Announcement
of a pending and up to 10 days after the effective date of the Change in Control
Transaction.

          (b) If at any time  there  occurs a Public  Announcement  of a pending
Change in Control  Transaction in which the public  shareholders  of the Company
are to  receive  consideration,  a  portion  of  which is  capital  stock or any
security convertible into capital stock of another entity in exchange for shares
of Common Stock ("Change in Control Consideration"), then prompt provision shall
be made in a manner  reasonably  acceptable  to the  Holders so that each Holder
shall have the right (in addition to its other rights under this Debenture):

               (i)  following  the  closing of the  transaction  covered by such
Public  Announcement,  to  convert  its  Debentures  into the  Change in Control


                                       6
<PAGE>

Consideration  that such Holder  would have been or would be entitled to receive
had it converted all of its Debentures  into Common Stock  (notwithstanding  any
restrictions  imposed upon the Holder pursuant to this Debenture or the Purchase
Agreement  in its ability to do so)  immediately  prior to the Change in Control
Transaction at the Change in Control  Conversion  Price (as defined below),  and
acquired the Change in Control Consideration as a shareholder of the Company; or

               (ii) following such Public  Announcement,  convert its Debentures
into Common Stock at the Change in Control Conversion Price (as defined below).

               The  "Change in  Control  Conversion  Price"  shall mean a price,
subject to  adjustments  in the same  manner as  adjustments  to the  Conversion
Price,  equal to the  lesser  of:  (i) the then  existing  Conversion  Price (as
defined in Section 5(c) below);  (ii) 100% of the lowest Market Price for Shares
of Common  Stock for any of the four  Trading  Days  immediately  preceding  the
Public Announcement of the Change in Control  Transaction;  and (iii) 85% of the
lowest  Market  Price  for  Shares of Common  Stock on the  three  Trading  Days
immediately  following the Public  Announcement.  The Market Price for Shares of
Common Stock shall be appropriately  adjusted for stock splits,  reverse splits,
stock dividends and other dilutive  events,  including those events occurring in
connection with the Change in Control Transaction, that occur during the Trading
Days referred to above.

     5.  Conversion  at the Option of the Holder.  The Holder of this  Debenture
shall have the following conversion rights:

          (a) Holder's  Right to Convert.  Upon the earlier to occur of: (i) the
effectiveness  of the  Registration  Statement  under  the Act;  or (ii) 90 days
following the Closing Date,  up to 50% of the initial  principal  amount of this
Debenture  may be  converted  at the  option  of the  Holder  during  any 30 day
calendar period,  into fully paid, validly issued and  non-assessable  shares of
Common Stock;  provided that this Debenture shall be immediately  convertible in
whole in the event of:  (i)  delivery  by the  Company  of a  Redemption  Notice
pursuant to Section 6; (ii) in the event that there is a Public  Announcement or
this  Debenture  shall  become  redeemable  at the Holder's  option  pursuant to
Section 4; (iii) any material default or breach of the Purchase  Agreement,  the
Escrow  Agreement,  the  Registration  Rights  Agreement,  any  Warrant  or this
Debenture;  or (iv) any Event of Default or any event which,  with the giving of
notice or the passage of time or both, would constitute an Event of Default.  If
this Debenture is converted in part, the remaining portion or this Debenture not
so converted shall remain entitled to the conversion rights provided herein.

          (b)  Conversion  Rate.  The  Outstanding   Principal  Amount  of  this
Debenture  that is  converted  into shares of Common  Stock at the option of the
Holder  shall be  convertible  into the number of shares of Common  Stock  which
results from application of the following formula:


                                       7
<PAGE>

                                    P + I + D
                         ------------------------------

                                Conversion Price

     P = Outstanding Principal Amount of this Debenture submitted for conversion
         as of the Holder Conversion Date
     I = accrued but unpaid interest (not previously added to principal) on P as
         of the Holder Conversion Date
     D = delay payments (not previously added to principal) on P as of the
         Holder Conversion Date

               The  number of shares of Common  Stock  into  which  each  $1,000
principal  amount of this  Debenture  hereto may be  converted  pursuant to this
paragraph hereof is hereafter referred to as the "Conversion Rate."

          (c) Conversion  Price.  Subject to adjustments  pursuant to Sections 4
and 7, this  Debenture  will have a conversion  price (the  "Conversion  Price")
equal to 105% of the average of the Market Prices for Shares of Common Stock for
the 7  Trading  Days  leading  up to and  ending  on,  and  the 7  Trading  Days
immediately following, the Closing Date (the "Pricing Period").

          (d) Mechanics of  Conversion.  In order to convert this  Debenture (in
whole or in part) into full  shares of Common  Stock,  the Holder (i) shall give
written  notice in the form of Exhibit 2 hereto  (the  "Conversion  Notice")  by
facsimile  to the Company at such  office that the Holder  elects to convert the
principal amount (plus accrued but unpaid interest and delay payments) specified
therein,  which such notice and election shall be revocable by the Holder at any
time prior to its receipt of the Common Stock upon  conversion,  and (ii) if the
entire Outstanding  Principal Amount is being converted,  as soon as practicable
after such notice,  shall  surrender this  Debenture,  duly endorsed,  by either
overnight  courier or 2-day  courier,  to the  principal  office of the Company;
provided, however, that the Company shall not be obligated to issue certificates
evidencing the shares of the Common Stock issuable upon such  conversion  (where
the entire  Outstanding  Principal Amount is being converted)  unless either the
Debenture  evidencing  the  principal  amount is  delivered  to the  Company  as
provided above, or the Holder notifies the Company that such  Debenture(s)  have
been lost,  stolen or destroyed  and promptly  executes an agreement  reasonably
satisfactory  to the Company to indemnify  the Company from any loss incurred by
it in connection with such lost, stolen or destroyed Debentures.

               The Holder  shall not be required to  physically  surrender  this
Debenture  to  the  Company  unless  the  full   Outstanding   Principal  Amount
represented  by this  Debenture is being  converted.  The Holder and the Company
shall maintain records showing the Outstanding Principal Amount so converted and
the  dates of such  conversions  or  shall  use such  other  method,  reasonably
satisfactory  to the  Holder  and the  Company,  so as not to  require  physical
surrender  of this  Debenture  upon  each such  conversion.  In the event of any
dispute or  discrepancy,  such records of the Company shall be  controlling  and
determinative in the absence of manifest error.  Notwithstanding


                                       8
<PAGE>

the foregoing,  if this Debenture is converted as aforesaid,  the Holder may not
transfer  this  Debenture  unless the Holder first  physically  surrenders  this
Debenture to the Company, whereupon the Company will forthwith issue and deliver
upon the order of the Holder a new  Debenture of like tenor,  registered  as the
Holder may request,  representing  in the aggregate  the  remaining  Outstanding
Principal Amount represented by this Debenture.  The Holder and any assignee, by
acceptance of this Debenture or a new Debenture,  acknowledge and agree that, by
reason of the provisions of this paragraph,  following conversion of any portion
of  this  Debenture,  the  Outstanding  Principal  Amount  represented  by  this
Debenture  may be less than the  Outstanding  Principal  Amount and the  accrued
interest set forth on the face hereof.

               The Company shall issue and deliver  within three Trading Days of
the  delivery  to the  Company  of such  Conversion  Notice,  to such  Holder of
Debenture(s) at the address of the Holder, or to its designee,  a certificate or
certificates  for the number of shares of Common Stock to which the Holder shall
be entitled as aforesaid, together with a calculation of the Conversion Rate and
a Debenture or Debentures  for the principal  amount of Debentures not submitted
for  conversion.  The date on which the Conversion  Notice is given (the "Holder
Conversion  Date")  shall  be  deemed  to be the date the  Company  received  by
facsimile the Conversion  Notice,  and the person or persons entitled to receive
the shares of Common Stock  issuable upon such  conversion  shall be treated for
all  purposes as the record  holder or holders of such shares of Common Stock on
such date.  In the event that such Holder or its designee has not received  such
certificate  or  certificates  within ten (10)  calendar  days of the  Company's
receipt of the  Conversion  Notice,  the Holder  may,  in  addition to any other
rights or remedies it may have, revoke its Conversion Notice.

               In lieu of  delivering  physical  certificates  representing  the
Common Shares  issuable upon  conversion of Debentures or the Warrant Shares (as
defined in the Purchase  Agreement)  deliverable  upon  exercise of Warrants (as
defined in the Purchase  Agreement),  provided the Company's  transfer  agent is
participating in the Depository Trust Company ("DTC") Fast Automated  Securities
Transfer ("FAST") program, upon request of the holder, the Company shall use its
best efforts to cause its transfer agent to  electronically  transmit the Common
Shares and Warrant Shares issuable upon conversion or exercise to the Holder, by
crediting  the  account of  Holder's  prime  broker with DTC through its Deposit
Withdrawal  Agent  Commission  ("DWAC")  system.  The time  periods for delivery
described  above shall  apply to the  electronic  transmittals  through the DWAC
system.  The parties agree to coordinate  with DTC to accomplish this objective.
The  conversions  pursuant  to  Sections  5 shall be  deemed  to have  been made
immediately  prior to the close of business on the Holder  Conversion  Date. The
person or persons  entitled  to receive  the Common  Shares  issuable  upon such
conversion  shall be treated for all purposes as the record holder or holders of
such Common Shares at the close of business on the Holder Conversion Date.

     6. Company Option to Redeem.

          (a) In the  event  that,  during  the one year  period  following  the
Closing  Date,  the Market Price for Shares of Common Stock  exceeds 200% of the
Conversion  Price for 20 consecutive  Trading Days (a "Redemption  Occurrence"),
then the


                                       9
<PAGE>

Company may state its  intention  to redeem  all,  but not less than all, of the
Debentures  (all or none) for a cash price  equal to the  Outstanding  Principal
Amount of the Debentures plus all accrued but unpaid interest and delay payments
thereon (the "Call  Amount") by providing an  irrevocable,  written  notice (the
"Redemption  Notice") to the Holder;  provided that such Redemption Notice shall
be sent within 20 days of a Redemption  Occurrence and must be sent concurrently
to the holders of all Debentures.  The Redemption Notice shall indicate that the
Company  seeks to redeem the  Debenture and shall set the date for the Company's
redemption of the Debenture  (the  "Redemption  Date"),  which date shall be not
less than 10 Trading  Days,  [nor more than 20  Trading  Days] from the date the
Redemption Notice is delivered (the "Post-Notice Period").

          (b)  Notwithstanding  the  foregoing,  the  Company  may not  effect a
redemption of the Notes pursuant to Section 6(a) above unless:

               (i) Effective Registration (as defined in the Purchase Agreement)
existed  at all  times  during  the  Redemption  Occurrence  and  at  all  times
thereafter up to and including the Redemption Date;

               (ii) No  material  default or breach  exists,  and no event shall
have occurred which  constitutes (or would constitute with notice or the passage
of time or both) a material  default or breach of the  Purchase  Agreement,  the
Escrow  Agreement,  the  Registration  Rights  Agreement,  any  Warrant  or this
Debenture;

               (iii)  Conversion by the Holder on the  Redemption  Date will not
exceed  the  limits on a  Holder's  right to  convert  under  Section  12 below.
However,  at the  option  of the  Holder,  (i) the  portion  of the  Outstanding
Principal Amount that may not be converted by reason of such Section 12 shall be
paid to the Holder in cash,  if any,  in an amount  equal to the  greater of the
Call  Amount and the  Conversion  Value (as defined in the  Registration  Rights
Agreement) or (ii) the  redemption of the portion of the  Outstanding  Principal
Amount that may not be  converted by reason of such Section 12 shall be deferred
until such time as the conversion hereof shall not exceed such limits.

          (c) The redemption  shall occur on the Redemption  Date at the offices
of Holder's counsel.  If the Company fails to pay the Call Amount in full on the
Redemption Date in immediately  available  funds, (i) the Company shall lose its
right to redeem any  Debenture  in  accordance  with this  Section 6 and (ii) in
addition to any other rights or remedies it may have,  the Holder shall have the
right to require  the  Company to  repurchase  this  Debenture  (or any  portion
thereof,  as selected  by the  Holder) at a price equal to 110% of the  purchase
price  pursuant to Section  6(b)(iii)  above pursuant to a written notice to the
Company.

          (d)  Nothing  in this  Debenture  shall  limit the  Holder's  right to
convert  after  a  Redemption   Notice  has  been  received  but  before  actual
redemption.


                                       10
<PAGE>

     7. Stock Splits; Dividends; Adjustments; Reorganizations.

          (a) If the Company,  at any time while the Debentures are outstanding,
shall (i) pay a stock dividend or otherwise make a distribution or distributions
on any equity securities (including  investments or securities  convertible into
or  exchangeable  for such equity  securities)  in shares of Common Stock,  (ii)
subdivide the outstanding shares of Common Stock into a larger number of shares,
(iii)  combine  outstanding  shares of  Common  Stock  into a smaller  number of
shares,  then  each  Affected  Conversion  Price  (as  defined  below)  shall be
multiplied by a fraction of which the numerator shall be the number of shares of
Common Stock outstanding before such event and of which the denominator shall be
the  number  of shares  of  Common  Stock  outstanding  after  such  event.  Any
adjustment made pursuant to this Section 7(a) shall become effective immediately
after the record date for the determination of shareholders  entitled to receive
such dividend or distribution and shall become effective  immediately  after the
effective date in the case of an issuance, a subdivision or a combination.

               As used herein, the Affected Conversion Prices (each an "Affected
Conversion  Price")  shall  refer to: (i) the  Conversion  Price;  and (ii) each
Market Price for Shares of Common Stock occurring on any Trading Day included in
the Pricing  Period,  which  Trading Day occurred  before the record date in the
case of events  referred to in clause (i) of this Section 7(a) and the effective
date in the case of the events  referred  to in  clauses  (ii) and (iii) of this
Section 7(a).

In the event that the  Company  issues or sells any Common  Stock or  securities
which are convertible into or exchangeable for its Common Stock, or any warrants
or other rights to subscribe  for or to purchase or any options for the purchase
of its Common  Stock at a per share of Common  Stock  selling  price ("Per Share
Selling Price") which is less than the Conversion  Price on the Trading Day next
preceding  such  issue or sale or, in the case of  issuances  to  holders of its
Common Stock, the date fixed for the  determination of stockholders  entitled to
receive such  warrants,  rights or options  (the  "Adjustment  Date"),  then the
Conversion  Price per share shall be  adjusted  downward to equal such lower Per
Share Selling Price effective concurrently with such issue or sale.

               Notwithstanding the foregoing,  this provision shall not apply to
shares or options  issued or which may be issued  pursuant to (i) the  Company's
current or future  employee,  director or bona fide  consultant  option plans or
shares issued upon exercise of options,  warrants or rights  outstanding  on the
date of the Agreement and listed in the Company's  most recent  periodic  report
filed under the Exchange Act, (ii) strategic  corporate alliances not undertaken
principally for financing  purposes,  (iii) arrangements with the Holder or (iv)
acquisitions of other entities by the Company.

               For the purposes of the foregoing adjustment,  in the case of the
issuance of any  convertible  securities,  warrants,  options or other rights to
subscribe  for  or  to  purchase  or  exchange  for,   shares  of  Common  Stock
("Convertible  Securities"),  the  maximum  number of  shares  of  Common  Stock
issuable upon exercise,  exchange or conversion of such  Convertible  Securities
shall be deemed to be issued  and  outstanding  based  upon a Per Share  Selling
Price equal to the lowest price at which  Common Stock can be acquired  pursuant
to the Convertible Securities, provided that no further adjustment shall be made


                                       11
<PAGE>

upon the actual  issuance of Common Stock upon exercise,  exchange or conversion
of such Convertible Securities.

          (b) If the Company,  at any time while the Debentures are outstanding,
shall  distribute  to all  holders of shares of Common  Stock  evidences  of its
indebtedness  or assets or rights or warrants to  subscribe  for or purchase any
security  (excluding  those referred to in Section 7(b) above),  then the prices
referred to in (ii) of the  definition  of the  Affected  Conversion  Prices set
forth in Section  7(a) above  shall be  reduced to equal the  relevant  Affected
Conversion Price multiplied by a fraction (i) the numerator of which is equal to
(A) the  Market  Price for  Shares of Common  Stock on the  record  date for the
distribution  minus (B) the price  allocable to one share of Common Stock of the
value (as  jointly  determined  in good faith by the board of  directors  of the
Company and the Holder) of any and all such evidences of indebtedness, shares of
capital  stock,  other  securities  or  property,  so  distributed  and (ii) the
denominator  of which is equal to the Market Price for Shares of Common Stock on
the record date for the distribution.

          (c) In the  event  that at any  time or from  time to time  after  the
Closing Date, the Common Stock issuable upon the conversion of the Debentures is
changed into the same or a different number of shares of any class or classes of
stock, whether by merger, consolidation,  recapitalization,  reclassification or
otherwise  (other than a subdivision  or combination of shares or stock dividend
or  reorganization  provided  for  elsewhere  in this  Section 7), then and as a
condition  to each such  event  provision  shall be made in a manner  reasonably
acceptable to the Holders of Debentures so that each Holder of Debentures  shall
have the right  thereafter  to  convert  such  Debenture  into the kind of stock
receivable  upon  such  recapitalization,  reclassification  or other  change by
holders of shares of Common Stock, all subject to further adjustment as provided
herein.  In such  event,  the  formulae  set forth  herein  for  conversion  and
redemption  shall be  equitably  adjusted  to reflect  such  change in number of
shares or, if shares of a new class of stock are  issued,  to reflect the market
price of the  class or  classes  of stock  (applying  the same  factors  used in
determining the Conversion  Price) issued in connection with the above described
transaction.

          (d) Whenever any element of the Conversion Price is adjusted  pursuant
to Section 7, the Company shall promptly mail to each Holder of the  Debentures,
a notice  setting forth the Conversion  Price after such  adjustment and setting
forth a brief statement of the facts requiring such adjustment.

          (e) In the event of any taking by the  Company of a record date of the
holders of any class of securities  for the purpose of  determining  the holders
thereof  who are  entitled to receive any  dividend or other  distribution,  any
security or right  convertible  or  exchangeable  into or  entitling  the holder
thereof to receive  additional shares of Common Stock, or any right to subscribe
for, purchase or otherwise acquire any shares of stock of any class or any other
securities or property, or to receive any other right, the Company shall deliver
to each  Holder  of  Debentures  at  least 20 days  prior to the date  specified
therein,  a notice  specifying  the date on which any such record is to be taken
for the purpose of such dividend, distribution, security or right and the amount
and character of such dividend, distribution, security or right.


                                       12
<PAGE>

          (f) If the Company,  at any time while the Debentures are outstanding,
shall  distribute  to all  holders of Shares of Common  Stock  evidences  of its
indebtedness  or assets or rights or warrants to  subscribe  for or purchase any
security  (excluding  those  referred to in Section  7(b) above) then the Holder
shall  participate in such  distribution on a pro rata basis with the holders of
shares  of  Common  Stock  entitled  to  receive  such  dividend,  distribution,
issuance, subdivision or combination as if the Holder held that number of shares
of Common  Stock that the Holder would have been  entitled to receive  hereunder
upon  conversion of the  Debenture  (without  regard to Section 12)  immediately
prior to the record date fixed for  determination  of  shareholders  entitled to
receive such dividend, at the Conversion Price then in existence.

     8.  Fractional  Shares.  No  fractional  shares  of  Common  Stock or scrip
representing fractional shares of Common Stock shall be issuable hereunder.  The
number of shares of Common Stock that are issuable upon any conversion  shall be
rounded up to the nearest whole share.

     9. Reservation of Stock Issuable Upon Conversion.

          (a) Reservation Requirement. The Company covenants that it will at all
times reserve and keep available out of its authorized and unissued Common Stock
solely for the purpose of issuance upon  conversion of the  Debentures as herein
provided,  free  from  preemptive  rights  or any other  present  or  contingent
purchase rights of persons other than the Holders of the Debentures, 160% of the
maximum  number  of shares of Common  Stock as shall be  issuable  (taking  into
account the  adjustments  and  restrictions of Sections 5 and 7 hereof) upon the
conversion of all of the Debentures  pursuant hereto. The Company covenants that
all shares of Common Stock that shall be so issuable  shall upon issue,  be duly
and validly authorized, issued and fully paid and nonassessable.  Without in any
way limiting the foregoing,  so long as any Debentures  remain  outstanding  the
Company agrees to reserve and at all times keep available solely for purposes of
conversion of Debentures such number of authorized but unissued shares of Common
Stock that is set forth in the Purchase Agreement.

          (b)  Deficiency.  If the Company does not have a sufficient  number of
shares of Common  Stock  available  to satisfy the  Company's  obligations  to a
Holder of Debentures upon receipt of a Conversion  Notice or is otherwise unable
to issue  such  shares  of  Common  Stock in  accordance  with the terms of this
Agreement  such Holder shall be entitled to the rights and remedies set forth in
the Registration Rights Agreement.

     10. No Reissuance of the Debenture.  No Debentures  acquired by the Company
by reason of redemption,  purchase, exchange or otherwise shall be reissued, and
all such Debentures shall be retired.

     11. No  Impairment.  The Company  shall not  intentionally  take any action
which would impair the rights and  privileges of the Debentures set forth herein
or the Holders thereof.

     12. Limitations on Holder's Right to Convert.


                                       13
<PAGE>

          (a)  Notwithstanding  anything to the contrary  contained herein,  the
number of shares  of  Common  Stock  that may be  acquired  by the  Holder  upon
conversion  of this  Debenture  pursuant to the terms  hereof shall not exceed a
number  that,  when added to the total  number of shares of Common  Stock deemed
beneficially  owned by such  Holder  (other than by virtue of the  ownership  of
securities or rights to acquire securities that have limitations on the holder's
right to  convert,  exercise  or purchase  similar to the  limitation  set forth
herein),  together  with all shares of Common  Stock deemed  beneficially  owned
(other  than by virtue  of the  ownership  of  securities  or rights to  acquire
securities that have  limitations on the right to convert,  exercise or purchase
similar to the  limitation  set forth herein) by the Holder's  "affiliates"  (as
defined in Rule 144 of the Act) ("Aggregation Parties") that would be aggregated
for  purposes  of  determining  whether  a  group  under  Section  13(d)  of the
Securities  Exchange Act of 1934 as amended,  exists,  would exceed 9.99% of the
total  issued  and  outstanding  shares of the  Common  Stock  (the  "Restricted
Ownership  Percentage").  Each  Holder  shall have the right (i) at any time and
from time to time to reduce its Restricted Ownership Percentage immediately upon
notice to the Company and (ii)  (subject to waiver) at any time and from time to
time, to increase its Restricted Ownership  Percentage  immediately in the event
of the announcement as pending or planned, of a Change of Control Transaction.

          (b) The Holder covenants at all times on each day (each such day being
referred to as a "Covenant Day") as follows: During the balance of such Covenant
Day and the succeeding sixty-one (61) days (the balance of such Covenant Day and
the succeeding 61 days being  referred to as the "Covenant  Period") such Holder
will not acquire  shares of Common Stock  pursuant to any right  existing at the
commencement  of the  Covenant  Period  to the  extent  the  number of shares so
acquired by such Holder and its Aggregation  Parties (ignoring all dispositions)
would exceed:

               (x) the  Restricted  Ownership  Percentage of the total number of
               shares of Common Stock  outstanding  at the  commencement  of the
               Covenant Period,

               minus

               (y) the number of shares of Common Stock owned by such Holder and
               its  Aggregation  Parties  at the  commencement  of the  Covenant
               Period.

          A new and  independent  covenant  will be  deemed  to be  given by the
Holder as of each  moment of each  Covenant  Day. No  covenant  will  terminate,
diminish  or modify any other  covenant.  The Holder  agrees to comply with each
such  covenant.  This Section 12 controls in the case of any  conflict  with any
other  provision of any other  agreement to which the Company and the Holder may
be parties.

          (c) The  Company's  obligation  to issue  shares of Common Stock which
would  exceed such limits  referred to in this  Section 12 shall be suspended to
the extent  necessary  until such time, if any, as shares of Common Stock may be
issued in compliance with such restrictions.


                                       14
<PAGE>

     13.  Obligations  Absolute.  No provision of this  Debenture,  the Purchase
Agreement  or the  Registration  Rights  Agreement  shall  alter or  impair  the
obligation  of the  Company,  which is absolute  and  unconditional,  to pay the
principal  of, and  interest and delay  payments on, this  Debenture or to issue
shares of Common Stock in response to a Conversion Notice at the time, place and
rate, and in the manner, herein prescribed.

     14. Waivers of Demand,  Etc. The Company hereby  expressly and  irrevocably
waives demand and presentment for payment, notice of nonpayment, protest, notice
of protest, notice of dishonor,  notice of acceleration or intent to accelerate,
bringing of suit and  diligence in taking any action to collect  amounts  called
for hereunder  and will be directly and primarily  liable for the payment of all
sums  owing  and to be owing  hereon,  regardless  of and  without  any  notice,
diligence,  act or omission as or with respect to the  collection  of any amount
called for hereunder.

     15.  Replacement  Debenture.  In the event  that any  Holder  notifies  the
Company that its Debenture(s) have been lost,  stolen or destroyed,  replacement
Debenture(s)  identical in all respects to the original Debenture(s) (except for
registration  number and Outstanding  Principal  Amount,  if different than that
shown on the  original  Debenture(s)),  shall be issued to the Holder,  provided
that the Holder  executes and  delivers to the Company an  agreement  reasonably
satisfactory  to the Company to indemnify  the Company from any loss incurred by
it in connection with such Debenture.

     16. Payment of Expenses;  Issue Taxes.  The Company agrees to pay all debts
and expenses, including reasonable attorneys' fees, which may be incurred by the
Holder in enforcing  the  provisions of this  Debenture  and/or  collecting  any
amount due under this Debenture,  the Escrow Agreement,  the Purchase Agreement,
any Warrant or the Registration Rights Agreement.  The Company shall pay any and
all issue and other taxes  (excluding  any income,  franchise or similar  taxes)
that maybe payable in respect of any issue or delivery of shares of Common Stock
on conversion of any Debenture pursuant hereto.

     17. Defaults. If one or more of the following described "Events of Default"
shall occur with respect to any of the Debentures:

          (a)  the Company  shall default in the payment of (i) interest on this
               Debenture or any other Debenture  issued pursuant to the Purchase
               Agreement  (subject to the Company's option to pay PIK Interest),
               and such default  shall  continue for five (5) days after the due
               date  thereof,  or (ii) the  principal  of this  Debenture or any
               other Debenture issued pursuant to the Purchase Agreement; or

          (b)  any of the  representations  or warranties made by the Company in
               any of the  Debentures,  in the  Purchase  Agreement,  the Escrow
               Agreement,  the Registration Rights Agreement,  any Warrant or in
               any  certificate or financial or other  statements  heretofore or
               hereafter  furnished by or on behalf of the Company in connection


                                       15
<PAGE>

               with the execution  and delivery of this  Debenture or such other
               documents shall be false or misleading at the time made; or

          (c)  the  Company  shall fail to  materially  perform  or observe  any
               covenant  or  agreement  in the  Purchase  Agreement,  the Escrow
               Agreement,  any Warrant or the Registration Rights Agreement,  or
               any other  covenant,  term,  provision,  condition,  agreement or
               obligation  of the Company under any of the  Debentures  and such
               failure  shall  continue  uncured  for a period  of ten (10) days
               after notice of such failure; or

          (d)  the Company shall (1) become insolvent;  (2) admit in writing its
               inability to pay its debts generally as they mature;  (3) make an
               assignment  for the benefit of creditors or commence  proceedings
               for  its  dissolution;  or  (4)  apply  for  or  consent  to  the
               appointment of a trustee,  liquidator or receiver for it or for a
               substantial part of its property or business; or

          (e)  a trustee,  liquidator  or receiver  shall be  appointed  for the
               Company or for a  substantial  part of its  property  or business
               without its consent and shall not be discharged within forty-five
               (45) days after such appointment; or

          (f)  any governmental agency or any court of competent jurisdiction at
               the instance of any  governmental  agency shall assume custody or
               control of the whole or any substantial portion of the properties
               or  assets of the  Company  and  shall  not be  dismissed  within
               forty-five (45) days thereafter; or

          (g)  the Company shall,  in one or a series of  transactions,  sell or
               otherwise transfer all or substantially all of its assets; or

          (h)  bankruptcy, reorganization, insolvency or liquidation proceedings
               or other  proceedings,  or relief under any bankruptcy law or any
               law for the relief of debt shall be  instituted by or against the
               Company  and, if  instituted  against  the  Company  shall not be
               dismissed within forty-five (45) days after such institution,  or
               the Company shall by any action or answer approve of, consent to,
               or  acquiesce  in any such  proceedings  or admit to any material
               allegations  of, or default in answering a petition  filed in any
               such proceeding; or

          (i)  the Company shall be in default of any other of its  indebtedness
               exceeding  $500,000,  or any other event shall have occurred such
               that  as  a  result  thereof  the  holders   thereof  shall  have
               accelerated  or shall have the right  (upon the giving of notice,
               the passage of time, or both) to accelerate such indebtedness; or


                                       16
<PAGE>

          (j)  a  "going  private"  transaction  under  Rule  13e-3  promulgated
               pursuant to the Exchange Act shall have been announced; or

          (k)  a tender  offer  by the  Company  under  Rule  13e-4  promulgated
               pursuant to the Exchange Act shall have been announced;

     then, or at any time  thereafter,  in the case of Events of Default arising
from the events  described in  paragraphs  (a),  (b), (c), (g) (i), (j) and (k),
unless  such  Event of Default  shall have been  waived in writing by the Holder
(which waiver shall not be deemed to be a waiver of any  subsequent  default) at
the option of the Holder and in the  Holder's  sole  discretion,  the Holder may
declare  the  Debenture  immediately  due and payable  and  concurrently  demand
payment thereof,  and the Holder may immediately,  and without expiration of any
period  of  grace,  enforce  any and all of the  Holder's  rights  and  remedies
provided herein or any other rights or remedies afforded by law. In the event of
Events of Default arising from the events  described in paragraphs (d), (e), (f)
or (h) above,  this Debenture  shall become  immediately due and payable without
further  action or notice.  In the event that the  Debenture  is due and payable
pursuant  to this  provision,  the  Debenture  shall be  redeemed at the Premium
Redemption Price (as defined in the Registration Rights Agreement).

     18.  Savings  Clause.  In case any provision of this Debenture is held by a
court of competent jurisdiction to be excessive in scope or otherwise invalid or
unenforceable, such provision shall be adjusted rather than voided, if possible,
so that it is enforceable to the maximum extent  possible,  and the validity and
enforceability of the remaining provisions of this Debenture will not in any way
be affected or impaired  thereby,  and such provision shall remain  effective in
all other jurisdictions.

     19. Entire Agreement. This Debenture and the agreements referred to in this
Debenture constitute the full and entire understanding and agreement between the
Company  and the  Holder  with  respect  to the  subject  hereof.  Neither  this
Debenture nor any term hereof may be amended,  waived,  discharged or terminated
other than by a written instrument signed by the Company and the Holder.

     20. Assignment,  Etc. Subject to Section 7.8 of the Purchase Agreement, the
Holder  (but not the  Company)  may  without  notice,  transfer  or assign  this
Debenture or any interest  herein and may mortgage,  encumber or transfer any of
its rights or interest in and to this Debenture or any part hereof and,  without
limitation,  each  assignee,  transferee  and  mortgagee  (which may include any
affiliate  of the  Holder)  shall  have the  right to  transfer  or  assign  its
interest.  Each such assignee,  transferee  and mortgagee  shall have all of the
rights of the Holder under this Debenture.  The Company agrees that,  subject to
compliance with the Purchase Agreement,  after receipt by the Company of written
notice  of  assignment  from the  Holder  or from  the  Holder's  assignee,  all
principal,  interest and other amounts which are then and thereafter  become due
under  this  Debenture  shall be paid to such  assignee  at the place of payment
designated in such notice.  This Debenture shall be binding upon the Company and
its  successors  and affiliates and shall inure to the benefit of the Holder and
its successors and assigns.


                                       17
<PAGE>

     21. No Waiver.  No failure  on the part of the Holder to  exercise,  and no
delay in  exercising  any right,  remedy or power  hereunder  shall operate as a
waiver  thereof,  nor shall any single or partial  exercise by the Holder of any
right,  remedy or power  hereunder  preclude any other or future exercise of any
other  right,  remedy or power.  Each and every  right,  remedy or power  hereby
granted  to the  Holder  or  allowed  it by  law or  other  agreement  shall  be
cumulative  and not  exclusive of any other,  and may be exercised by the Holder
from time to time.

     22. Certificate. The Company shall, upon the written request at any time of
any Holder of  Debentures,  furnish or cause to be  furnished  to such  Holder a
certificate prepared by the chief financial officer of Company setting forth any
adjustments or  readjustments of the Conversion Price pursuant to this Debenture
and any right of the Holder to receive  additional shares of Common Stock or any
other equity or debt security pursuant to Section 7.

     23.  Notices.  The Company  shall  distribute  to the Holders of Debentures
copies  of  all  notices,   materials,   annual  and  quarterly  reports,  proxy
statements, information statements and any other documents distributed generally
to the holders of shares of Common  Stock of the  Company,  at such times and by
such method as such  documents  are  distributed  to such holders of such Common
Stock,  but  shall  not  directly  or  indirectly  provide  material  non-public
information to the Holder without such Holder's prior written consent.

     24. Specific Enforcement.  The Company agrees that irreparable damage would
occur  in the  event  that  any of the  provisions  of this  Debenture  were not
performed in accordance with their specific terms or were otherwise breached. It
is accordingly  agreed that the Holders of Debentures shall be entitled to swift
specific  performance,  injunctive relief or other equitable remedies to prevent
or cure breaches of the provisions of this Debenture and to enforce specifically
the terms and provisions  hereof,  this being in addition to any other remedy to
which any of them may be entitled under agreement, at law or in equity.

     25.  Miscellaneous.  Unless otherwise  provided herein, any notice or other
communication to a party hereunder shall be sufficiently given if in writing and
personally  delivered,  facsimiled  or mailed to said party by  certified  mail,
return receipt requested,  at its address set forth herein or such other address
as  either  may   designate   for  itself  in  such  notice  to  the  other  and
communications  shall be deemed to have been received when delivered  personally
or, if sent by mail or facsimile,  then when  actually  received by the party to
whom it is addressed.  Whenever the sense of this Debenture  requires,  words in
the singular shall be deemed to include the plural and words in the plural shall
be deemed to include the singular.  Paragraph  headings are for convenience only
and shall not affect the meaning of this document.

     26.  GOVERNING  LAW;  CONSENT  TO  JURISDICTION.  THIS  DEBENTURE  SHALL BE
GOVERNED BY AND CONSTRUED AND ENFORCED IN ACCORDANCE  WITH THE LAWS OF THE STATE
OF NEW YORK APPLICABLE TO CONTRACTS TO BE EXECUTED AND PERFORMED


                                       18
<PAGE>

ENTIRELY WITHIN SUCH STATE.  THE COMPANY (I) HEREBY  IRREVOCABLY  SUBMITS TO THE
EXCLUSIVE  JURISDICTION  OF THE STATE AND  FEDERAL  COURTS  LOCATED  IN NEW YORK
COUNTY,  NEW YORK FOR THE PURPOSES OF ANY SUIT, ACTION OR PROCEEDING ARISING OUT
OF OR RELATED TO THIS DEBENTURE AND (II) HEREBY WAIVES, AND AGREES NOT TO ASSERT
IN ANY SUCH SUIT,  ACTION OR  PROCEEDING,  ANY CLAIM  THAT IT IS NOT  PERSONALLY
SUBJECT TO THE JURISDICTION OF SUCH COURT,  THAT THE SUIT,  ACTION OR PROCEEDING
IS BROUGHT  IN AN  INCONVENIENT  FORUM OR THAT THE VENUE OF THE SUIT,  ACTION OR
PROCEEDING IS IMPROPER. THE COMPANY CONSENTS TO PROCESS BEING SERVED IN ANY SUCH
SUIT,  ACTION OR  PROCEEDING BY MAILING A COPY THEREOF TO SUCH PARTY AS PROVIDED
HEREIN AND AGREES THAT SUCH SERVICE SHALL CONSTITUTE GOOD AND SUFFICIENT SERVICE
OF PROCESS AND NOTICE  THEREOF.  NOTHING IN THIS PARAGRAPH SHALL AFFECT OR LIMIT
ANY RIGHT TO SERVE PROCESS IN ANY OTHER MANNER PERMITTED BY LAW.

                             Signature Page Follows


                                       19
<PAGE>

     IN WITNESS  WHEREOF,  the  Company has caused  this  instrument  to be duly
executed by an officer thereunto duly authorized.


                                      PHARMOS CORPORATION



                                      By:
                                         -------------------------------
                                         Name:
                                         Title:



        Signature page to 6% Convertible Debenture of PHARMOS CORPORATION


                                       20
<PAGE>

                                    EXHIBIT 1

                                PAYMENT STATEMENT

Date:______________

To: [Name of Holder of Debenture] ("Holder")

Re: 6%  Convertible  Debenture  Due February 28, 2002  ("Debenture")  of PHARMOS
CORPORATION (the "Company"), in the Outstanding Principal Amount of US$________.

          The  Company  hereby   irrevocably  elects  to  pay  interest  on  the
Debenture,  for the Interest  Payment Date  indicated  below,  in the  following
manner (the Company should check its selection):

          ____ cash interest; or

          ____ PIK Interest.


          Interest Payment Date: _________________________


          If the selection above is PIK Interest, the Company should fill in the
following:

          Outstanding Principal Amount prior
          to issuance of this Payment Statement:               US$_____________

          PIK Interest:                                        US$_____________

          Outstanding Principal Amount after
          issuance of this Payment Statement:                  US$_____________


          The Company hereby certifies to the Holder, its successors and assigns
that the Outstanding  Principal Amount due under the Debenture after delivery of
this Payment Statement equals the amount indicated below. Capitalized terms used
in this  Payment  Statement  and not  otherwise  defined  shall have the meaning
ascribed thereto in the Debenture.

<PAGE>

          IN WITNESS WHEREOF,  this Payment Statement has been duly executed and
delivered on the date first written above.


                                               PHARMOS CORPORATION


                                               By:
                                                  ------------------------------
                                                  Name:
                                                  Title:


                                       22
<PAGE>

                                    EXHIBIT 2

                      (To be Executed by Registered Holder
                         in order to Convert Debenture)

                                CONVERSION NOTICE
                                       FOR
                 6% CONVERTIBLE DEBENTURE DUE FEBRUARY 28, 2002


     The undersigned, as Holder of the 6% Convertible Debenture Due February 28,
2002 of PHARMOS CORPORATION (the "Company"), in the outstanding principal amount
of U.S. $_____________ (the "Debenture"),  hereby elects to convert that portion
of the outstanding principal amount of the Debenture shown on the next page into
shares of Common Stock,  $0.03 par value per share (the "Common Stock"),  of the
Company  according to the  conditions of the  Debenture,  as of the date written
below.  The undersigned  hereby requests that share  certificates for the Common
Stock to be issued to the  undersigned  pursuant  to this  Conversion  Notice be
issued in the name of, and  delivered  to, the  undersigned  or its  designee as
indicated  below.  If shares are to be issued in the name of a person other than
the  undersigned,  the  undersigned  will pay all  transfer  taxes  payable with
respect thereto. No fee will be charged to the Holder for any conversion, except
for transfer taxes, if any.

Conversion Information:      NAME OF HOLDER:____________________________________

                         By:____________________________________________________
                             Print Name:
                             Print Title:

                             Print Address of Holder:

                             ___________________________________________________

                             ___________________________________________________

                             Issue Common Stock to:_____________________________
                             at:________________________________________________

                             Electronically transmit and credit Common Stock to:
                             [________________} at:


                             ___________________________________________________
                             Date of Conversion

                             ___________________________________________________
                             Applicable Conversion Rate


                THE COMPUTATION OF THE NUMBER OF COMMON SHARES TO
                  BE RECEIVED IS SET FORTH ON THE ATTACHED PAGE

<PAGE>

Page 2 to Conversion Notice for: _______________________________________
                                            (Name of Holder)


              COMPUTATION OF NUMBER OF COMMON SHARES TO BE RECEIVED

A. Outstanding Principal Amount converted:                          $__________
B. Accrued, unpaid interest on Outstanding Principal
     Amount converted:                                              $__________
C. Delay payments due Holder on Outstanding Principal
     Amount converted:                                              $__________

                                                                    ------------
Total dollar amount converted (total of A + B + C)                  $__________

                                                                    ============


Exchange Price                                                      $__________

Number of Shares of Common Stock = Total dollar amount converted  = $__________
                                   -----------------------------
                                         Conversion Price           $


Number of shares of Common Stock  = ________________________________


If the  conversion is not being  settled by DTC,  please issue and deliver _____
certificate(s) for shares of Common Stock in the following amount(s):

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________


Please issue and deliver _____ new Debenture(s) in the following amounts:

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________


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