CELLEGY PHARMACEUTICALS INC
S-3, EX-4.4, 2000-11-07
PHARMACEUTICAL PREPARATIONS
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                                                                     Exhibit 4.4

THIS WARRANT AND THE SHARES ISSUABLE  HEREUNDER HAVE NOT BEEN  REGISTERED  UNDER
THE  SECURITIES  ACT OF  1933,  AS  AMENDED,  AND MAY NOT BE SOLD,  PLEDGED,  OR
OTHERWISE  TRANSFERRED WITHOUT AN EFFECTIVE  REGISTRATION THEREOF UNDER SUCH ACT
OR PURSUANT TO RULE 144 OR AN OPINION OF COUNSEL REASONABLY  SATISFACTORY TO THE
CORPORATION AND ITS COUNSEL, THAT SUCH REGISTRATION IS NOT REQUIRED.

THIS SECURITY IS SUBJECT TO CERTAIN  RESTRICTIONS  UPON TRANSFER,  INCLUDING BUT
NOT LIMITED TO, PROHIBITION ON SALE OF THE SHARES ISSUABLE UPON EXERCISE OF THIS
WARRANT  FOR A PERIOD  OF ONE YEAR FROM THE ISSUE  DATE OF THIS  WARRANT,  AND A
RIGHT OF FIRST  OFFER ON BEHALF  OF THE  COMPANY,  AS SET FORTH IN AN  AGREEMENT
BETWEEN  THE COMPANY  AND THE  STOCKHOLDER,  A COPY OF WHICH IS ON FILE WITH THE
SECRETARY OF THE COMPANY.

                            WARRANT TO PURCHASE STOCK

Corporation:                 Cellegy Pharmaceuticals, Inc.
Number of Shares:            171,146
Class of Stock:              Common Stock
Initial Exercise Price:      $6.60 per share
Issue Date:                  June 13, 2000
Expiration Date:             June 13, 2002

         This  Warrant  certifies  that,  for good and  valuable  consideration,
Richcone Pty Ltd ACN 064 469 861 ("Richcone")  (referred to herein as "Holder"),
as trustee of the Richcone Unit Trust, a trust  established by deed dated May 5,
1994 between  Richcone and Robert John George Miles is entitled to purchase from
the corporation  named above (the  "Company"),  until 5:00 p.m. Pacific Standard
Time,  on the  Expiration  Date set forth  above,  the  number of fully paid and
nonassessable  shares of the Common  Stock (the  "Shares") of the Company at the
initial exercise price per Share (the "Warrant  Price"),  all as set forth above
and as adjusted pursuant to Section 2 of this Warrant, subject to the provisions
and upon the terms and conditions set forth in this Warrant.

1. EXERCISE.

         1.1 Vesting; Exercise; Registration. As of the Issue Date, this Warrant
shall be exercisable in full by Holder, and Holder may exercise this Warrant, in
whole  or in  part,  by  delivering  a  duly  executed  Notice  of  Exercise  in
substantially  the form  attached  as Exhibit A to the  principal  office of the
Company.  Holder  shall  also,  concurrently  with  delivery  of the  Notice  of
Exercise,  deliver  to the  Company a check or wire  transfer  in United  States
dollars for the aggregate Warrant Price for the Shares being purchased. Pursuant
to the provisions of a Securities Purchase Agreement between the original Holder
of this Warrant and the Company, the Company has agreed to include the Shares in
a  registration  statement  to be filed by the  Company  after  the date of this
Warrant.

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<PAGE>

         1.2  Delivery of  Certificate  and New Warrant.  Promptly  after Holder
exercises this Warrant, the Company shall deliver to Holder certificates for the
Shares  acquired and, if this Warrant has not been fully  exercised or converted
and has not expired,  this Warrant shall  automatically be reduced by the number
of Shares as to which the Warrant has been exercised and remain  exercisable for
such remaining  Shares as to which this Warrant has not been exercised,  and all
other terms of the Warrant shall otherwise remain in full force and effect as so
adjusted.  Upon final exercise of this Warrant for any such remaining  number of
Shares,  this  Warrant  shall be  surrendered  by the Holder to the  Company for
cancellation.

         1.3  Replacement  of  Warrants.   On  receipt  of  evidence  reasonably
satisfactory  to the Company of the loss,  theft,  destruction  or mutilation of
this Warrant and, in the case of loss,  theft or destruction,  on delivery of an
indemnity  agreement  reasonably  satisfactory in form and amount to the Company
or, in the case of mutilation,  or surrender and  cancellation  of this Warrant,
the Company at its expense shall execute and deliver, in lieu of this Warrant, a
new warrant of like tenor.

         1.4 Sale, Merger, or Consolidation of the Company.

                  1.4.1.  "Acquisition".   For  the  purpose  of  this  Warrant,
"Acquisition"   means  any  sale  of  the  Company's   stock  by  the  Company's
stockholders  in one  transaction  or  series  of  related  transactions  or any
reorganization, consolidation or merger of the Company, in any case where, after
the transaction,  the holders of the Company's securities before the transaction
beneficially  own  less  than  fifty  percent  (50%) of the  outstanding  voting
securities of the surviving entity or of its parent corporation if the surviving
entity is a wholly owned subsidiary of such parent corporation.

                  1.4.2   Assumption  of  Warrant.   Upon  the  closing  of  any
Acquisition  where the  consideration  for the Acquisition to be received by the
Company's stockholders consists solely of stock or securities of the acquirer or
an entity  affiliated with the acquirer,  the successor  entity shall assume the
obligations of this Warrant,  and this Warrant shall be exercisable for the same
securities  as would be payable  for the Shares  issuable  upon  exercise of the
unexercised  portion of this Warrant as if such Shares were  outstanding  on the
record date for the  Acquisition  and subsequent  closing  thereof.  The Warrant
Price shall be adjusted accordingly.

                  1.4.3   Termination  of  Warrant.   In  the  case  of  (a)  an
Acquisition  where the  consideration  for the Acquisition to be received by the
Company's stockholders in return for their capital stock of the Company consists
of  cash or a  combination  of  cash  and  other  property  or (b) the  proposed
liquidation  and  dissolution  of the Company,  the Company shall give Holder at
least  fifteen  (15) days  advance  written  notice of such event (the  "Company
Notice"), which notice shall include the Company's best estimate of the value of
the Shares  receivable  upon  exercise  or  conversion  of this  Warrant and the
proposed  date upon which such event is  expected  to occur.  During such notice
period,  Holder may  exercise or convert  this  Warrant in  accordance  with its
terms, whether or not exercise or conversion is contingent upon the happening of
such event. Subject to prior exercise or conversion as provided in the preceding
sentence, this Warrant will terminate at 5:00 p.m. Pacific time on the day prior
to the date such event is expected to occur as set forth in the Company  Notice;
provided that the event actually occurs within sixty (60) days after the date it
is expected to occur, as such date was specified in the Company Notice.

         1.5 Restrictions on Exercise.  This Warrant may not be exercised if the
issuance of


                                       2
<PAGE>

the Shares upon such  exercise  would  constitute a violation of any  applicable
federal or state securities laws or other laws or regulations. As a condition to
the  exercise  of this  Warrant,  by the  Holder's  execution  of the  Notice of
Exercise attached hereto as Exhibit A, the Holder shall confirm, acknowledge and
agree to the representations,  warranties and agreements of the Holder set forth
in Section 4 hereof.

2. ADJUSTMENTS TO THE SHARES.

         2.1 Stock  Splits,  Recapitalizations,  Etc.  If the Company (i) pays a
dividend  in shares of  capital  stock or other  securities  on its  outstanding
Common  Stock,  (ii)  subdivides  its  outstanding  shares of Common  Stock in a
transaction that increases the amount of its outstanding shares of Common Stock,
or (iii) combines its outstanding  shares of Common Stock in a transaction  that
decreases  the  amount of its  outstanding  shares of  Common  Stock,  then upon
exercise or conversion of this Warrant,  for each Share  acquired,  Holder shall
receive,  without  cost to Holder,  the total number and kind of  securities  to
which Holder  would have been  entitled had Holder owned the Shares of record as
of the date such dividend, distribution, subdivision or combination occurred.

         2.2  Certain  Corporate   Transactions.   Upon  any   reclassification,
exchange,  substitution,  Acquisition of the Company or other similar event that
results in a change of the number and/or class of the  securities  issuable upon
exercise or conversion of this Warrant other than as provided in Section 2.1 and
other than an Acquisition described in Section 1.4.3 above (a "Reorganization"),
Holder  shall be entitled  to  receive,  upon  exercise  or  conversion  of this
Warrant,  the number and kind of securities  and property that Holder would have
received for the Shares if this Warrant had been  exercised  immediately  before
such Reorganization. The Company or its successor shall promptly issue to Holder
a new Warrant for such new securities or other  property.  The new Warrant shall
provide for adjustments that shall be as nearly equivalent as may be practicable
to the adjustments provided for in this Section 2 including, without limitation,
appropriate  adjustments to the Warrant Price and to the number of securities or
property issuable upon exercise or conversion of the new Warrant.

         2.3  Adjustments  of  Warrant  Price.  If the  outstanding  Shares  are
combined or consolidated, by reclassification or otherwise, into a lesser number
of  shares,  the  Warrant  Price  shall  be  proportionately  increased.  If the
outstanding Shares are divided by reclassification or otherwise,  into a greater
number of shares, the Warrant Price shall be proportionately decreased.

         2.4  Adjustment is  Cumulative.  The provisions of this Section 2 shall
similarly apply to successive,  stock  dividends,  stock splits or combinations,
reclassifications, exchanges, substitutions, or other events.

         2.5  No  Impairment.  The  Company  shall  not,  by  amendment  of  its
Certificate of  Incorporation or through a  reorganization,  transfer of assets,
consolidation,  merger,  dissolution,  issue, or sale of securities or any other
voluntary action, avoid or seek to avoid the observance or performance of any of
the terms to be observed or performed  under this  Warrant by the  Company,  but
shall at all times carry out of all the provisions of this Section 2.

         2.6  Fractional  Shares.  No  fractional  Shares shall be issuable upon
exercise  or  conversion  of the  Warrant  and the number of Shares to be issued
shall be rounded down to the nearest whole Share. If a fractional share interest
arises upon any  exercise  or  conversion  of the


                                       3
<PAGE>

Warrant,  the Company shall eliminate such  fractional  Share interest by paying
Holder an amount by check computed by multiplying the fractional interest by the
fair market value of a full Share.

         2.7 Certificate as to Adjustments.  Upon each adjustment of the Warrant
Price,  the Company at its expense  shall compute such  adjustment,  and furnish
Holder with a  certificate  of its Chief  Financial  Officer  setting forth such
adjustment and the facts upon which such adjustment is based. The Company shall,
upon written  request,  furnish  Holder a certificate  setting forth the Warrant
Price in effect upon the date thereof and the series of  adjustments  leading to
such Warrant Price.

3. REPRESENTATIONS AND COVENANTS OF THE COMPANY.

         3.1 Representations  and Warranties.  The Company hereby represents and
warrants to the Holder that all Shares  which may be issued upon the exercise of
the purchase right  represented  by this Warrant,  and all  securities,  if any,
issuable  upon  conversion  of  the  Shares,   shall,  upon  issuance,  be  duly
authorized, validly issued, fully paid and nonassessable,  and free of any liens
and  encumbrances  except for  restrictions  on transfer  provided for herein or
under applicable federal and state securities laws.

         3.2  Reservation of the Shares.  If at any time the number of shares of
Common Stock or other  securities  issuable  upon exercise of this Warrant shall
not be sufficient to effect the exercise of this Warrant,  the Company will take
such  corporate  action as may, in the opinion of its  counsel,  be necessary to
increase its authorized but unissued shares of Common Stock or other  securities
issuable upon exercise of this Warrant as shall be sufficient for such purpose.

         3.3 No Rights or Liabilities as  Stockholder.  This Warrant does not by
itself entitle the Holder to any voting rights,  cash dividends or other rights,
nor subject Holder to any liabilities,  as a stockholder of the Company.  In the
absence of  affirmative  action by the Holder to purchase  Shares by exercise of
this Warrant,  no provisions of this Warrant,  and no enumeration  herein of the
rights or privileges  of the Holder,  shall cause the Holder to be a stockholder
of the company for any purpose.

4. REPRESENTATIONS OF HOLDER; TRANSFER.

         4.1  Representations.  Holder  hereby  represents  and  warrants to the
Company as follows: Holder is a sophisticated investor having such knowledge and
experience  in  business  and  investment  matters  that  Holder is  capable  of
protecting  Holder's own interests in connection with the acquisition,  exercise
or disposition of this Warrant. Holder is aware that this Warrant and the Shares
(and the securities  issuable,  directly or indirectly,  upon  conversion of the
Shares, if any)  (hereinafter,  collectively,  the "Restricted  Securities") are
being, or will be, issued to Holder in reliance upon Holder's  representation in
this Section 4 and that such securities are restricted securities that cannot be
publicly sold except in certain  prescribed  situations.  Holder is aware of the
provisions of Rule 144 promulgated  under the Securities Act of 1933, as amended
(the "Act") and of the  conditions  under  which  sales may be made  thereunder.
Holder  has  received  such  information  about  the  Company  as  Holder  deems
reasonable,  has had the  opportunity to ask questions and receive  answers from
the Company  with  respect to its  business,  assets,  prospects  and  financial
condition and has verified any answers Holder has received from the Company with
independent  third parties to the extent Holder deems necessary.  The Holder, by
acceptance  hereof,  acknowledges  that  the  Restricted  Securities  are  being
acquired  solely for the Holder's own account and not as a nominee for any other
party, and for investment, and that


                                       4
<PAGE>

the Holder  will not offer,  sell or  otherwise  dispose of this  Warrant or any
Shares to be issued upon  exercise  hereof or  conversion  thereof  except under
circumstances  that  will not  result  in a  violation  of the Act or any  state
securities laws.

         4.2 Legends. The Restricted  Securities shall be imprinted with legends
in substantially the following form:

         THIS SECURITY HAS NOT BEEN  REGISTERED  UNDER THE  SECURITIES
         ACT OF 1933, AS AMENDED,  OR ANY STATE SECURITIES LAW AND MAY
         NOT BE SOLD,  PLEDGED  OR  OTHERWISE  TRANSFERRED  WITHOUT AN
         EFFECTIVE  REGISTRATION  THEREOF  UNDER  SUCH  ACT  OR LAW OR
         PURSUANT   TO  RULE  144  AND  ANY   STATE   EXEMPTION   FROM
         REGISTRATION OR AN OPINION OF COUNSEL REASONABLY SATISFACTORY
         TO THE CORPORATION AND ITS COUNSEL THAT SUCH  REGISTRATION IS
         NOT REQUIRED.

         THIS  SECURITY  IS  SUBJECT  TO  CERTAIN   RESTRICTIONS  UPON
         TRANSFER,  INCLUDING BUT NOT LIMITED TO,  PROHIBITION ON SALE
         OF THE SHARES  ISSUABLE  UPON  EXERCISE OF THIS WARRANT FOR A
         PERIOD OF ONE YEAR FROM THE ISSUE DATE OF THIS WARRANT, AND A
         RIGHT OF FIRST OFFER ON BEHALF OF THE  COMPANY,  AS SET FORTH
         IN AN AGREEMENT  BETWEEN THE COMPANY AND THE  STOCKHOLDER,  A
         COPY OF WHICH IS ON FILE WITH THE SECRETARY OF THE COMPANY.

         4.3  Restrictions  on Transfer.  Neither this  Warrant,  nor any rights
hereunder,  may be  assigned,  conveyed  or  transferred,  in  whole or in part,
without the Company's  prior  written  consent which the Company may withhold in
its sole  discretion;  provided,  however,  that subject to compliance  with all
applicable  securities laws, the Company's  consent shall not be required for an
assignment  or  transfer  of this  Warrant to an  affiliate  (as defined in Rule
501(b) of the Act),  officer or any family  member of an officer of the  initial
Holder,  so  long  as such  assignment  or  transfer  complies  with  applicable
securities  laws and such assignee or transferee,  as the case may be, agrees in
writing  to be  bound  by  the  terms  of  this  Warrant.  In  addition,  Holder
acknowledges  that this Warrant is being issued pursuant to the terms of a Stock
Purchase  Agreement  dated April 14,  2000 by and between the initial  Holder of
this Warrant and the Company (the "Stock Purchase Agreement"), and that pursuant
to the provisions of Section 6.3 of the Stock Purchase Agreement,  Holder agrees
that for a period of one year after the Issue  Date,  Holder will not (i) offer,
pledge,  sell, contract to sell, sell any option,  right or warrant to purchase,
lend, or otherwise  transfer or dispose of,  directly or indirectly,  any of the
Warrant Shares,  or (ii) enter into any swap or other arrangement that transfers
to another,  in whole or in part, any of the economic  consequences of ownership
of such securities.

                  4.3.1 Right of First Refusal.  Except as provided herein,  the
Holder hereby  understands,  acknowledges and agrees that the Warrant may not be
sold or otherwise  transferred  without the  Company's  prior  written  consent.
Before the  Warrant  may be sold or  otherwise  transferred  (including  without
limitation a transfer by gift or operation of law) (the  "Offered  Securities"),
the  Company  and/or  its  assignee(s)  will  have a right of first  refusal  to
purchase the Warrant to be sold or  transferred  on the terms and conditions set
forth in this Section 4.3.1 (the "Right of First Refusal").

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<PAGE>

                           4.3.1.1  Notice of Proposed  Transfer.  The Holder of
the  Offered  Securities  will  deliver  to the  Company a written  notice  (the
"Transfer  Notice")  stating:  (i) the Holder's  bona fide  intention to sell or
otherwise  transfer  the Offered  Securities;  (ii) the name and address of each
proposed  purchaser or other transferee (the "Proposed  Transferee");  (iii) the
number or portion of such Offered  Securities to be transferred to each Proposed
Transferee;  (iv) the bona fide cash price or other  consideration for which the
Holder proposes to transfer the Offered  Securities (the "Offered  Price");  and
(v) that the Holder  acknowledges  this Transfer  Notice is an offer to sell the
Offered  Securities  to the  Company  pursuant to the  Company's  Right of First
Refusal at the Offered Price as provided for in this Warrant.

                           4.3.1.2  Exercise of Right of First  Refusal.  At any
time within thirty (30) days after the date of the Transfer Notice,  the Company
may, by giving written notice to the Holder, elect to purchase all (or, with the
consent of the  Holder,  less than all) the  Offered  Securities  proposed to be
transferred to any one or more of the Proposed Transferees named in the Transfer
Notice,  at the purchase price determined in accordance with Subsection  4.3.1.3
below.

                           4.3.1.3  Purchase  Price.  The purchase price for the
Offered  Securities  purchased  under this  Section  will be the Offered  Price,
provided that if the Offered Price consists of no legal  consideration  (as, for
example, in the case of a transfer by gift), the purchase price will be the fair
market value of the Offered Securities as determined by the Company (and, if the
Common Stock is then publicly traded,  based on the closing sales prices for the
Common Stock). If the Offered Price includes consideration other than cash, then
the value of the  non-cash  consideration,  as  determined  in good faith by the
Company's  Board  of  Directors,  will  conclusively  be  deemed  to be the cash
equivalent value of such non-cash consideration.

                           4.3.1.4  Payment.  Payment of the purchase  price for
the  Offered  Securities  will be  payable,  at the  option of the  Company,  as
applicable, by check, by wire transfer or by cancellation of all or a portion of
any  outstanding  indebtedness  owed by the  Holder to the  Company  (or to such
assignee,  in the case of a purchase of Offered  Securities by such assignee) or
by any  combination  thereof.  The purchase price will be paid without  interest
within  three (3)  business  days after the  Company's  election to exercise its
Right of First Refusal.

                           4.3.1.5  Holder's  Right to Transfer.  If the Company
has not elected to exercise  its Rights of First  Refusal as provided in Section
4.3.1.2  or Holder has not  consented  to the  purchase  of less than all of the
Offered Securities  proposed in the Transfer Notice to be transferred to a given
Proposed Transferee by the Company as provided in this Section,  then the Holder
may sell or  otherwise  transfer all such Offered  Securities  to each  Proposed
Transferee at the Offered Price or at a higher price (and if Holder consented to
the  purchase of less than all the Offered  Securities  proposed in the Transfer
Notice to be  transferred  to a given  Proposed  Transferee  by the  Company  as
provided in this  Section,  then the Holder may sell or  otherwise  transfer any
remaining Offered Securities to each Proposed Transferee at the Offered Price or
at a higher price), provided that (i) such sale or other transfer is consummated
within one hundred  twenty (120) days after the date of the Transfer  Notice and
(ii)  any  such  sale or other  transfer  is  effected  in  compliance  with all
applicable  securities laws. If the Offered Securities described in the Transfer
Notice are not transferred to each Proposed  Transferee  within such one hundred
twenty  (120)  day  period,  then a new  Transfer  Notice  must be  given to the
Company,  pursuant to which the Company will again be offered the Right of First
Refusal before the Warrant may be sold or otherwise transferred.

                                       6
<PAGE>

                           4.3.1.6 Exempt Transfers. Notwithstanding anything to
the contrary in this Section 4.3, the following transfers of the Warrant will be
exempt from the Right of First  Refusal:  (i) any  transfer of the Warrant  made
pursuant to a statutory merger or statutory consolidation of the Company with or
into another corporation or corporations (except that the Right of First Refusal
will continue to apply  thereafter  to the Warrant,  in which case the surviving
corporation of such merger or  consolidation  shall succeed to the rights of the
Company  under this  Section  unless the  agreement  of merger or  consolidation
expressly otherwise provides);  (ii) any transfer of the Warrant pursuant to the
winding up and dissolution of the Company;  (iii) any transfer of the Warrant to
any affiliate  (as defined in Rule 501(b) of the Act) of the Holder;  or (iv) to
any officer or any family member of an officer of the Holder.

                           4.3.1.7  Termination of Right of First  Refusal.  The
Right of First Refusal will terminate as to the Warrant on the first to occur of
the following:  (i) the Expiration  Date of this Warrant,  or (ii) the effective
date  of the  registration  of the  Shares  by the  Company  under  the  Act and
applicable  state  securities  law,  or  (iii)  the  date of  expiration  of any
statutory  holding  period  applicable to the Shares as required by Rule 144 and
any applicable state exemption from registration.

                           4.3.1.8  Encumbrances on the Warrant.  Holder may not
grant any lien or security  interest in, or pledge,  hypothecate or encumber the
Warrant.

                  4.3.2  Securities  Laws.  This Warrant and the Shares issuable
upon exercise of this Warrant may not be  transferred or assigned in whole or in
part without compliance with applicable federal and state securities laws by the
transferor and the transferee  (including,  without limitation,  the delivery of
investment  representation letters and legal opinions reasonably satisfactory to
the  Company,  as  reasonably  requested  by the  Company).  If,  subject to the
provisions  of this Section 4.3, the Holder is allowed to transfer  this Warrant
or the  Shares  issuable  upon  exercise  of this  Warrant  (or  the  securities
issuable,  directly or indirectly,  upon conversion of the Shares,  if any), the
Company shall not require Holder to provide an opinion of counsel if there is no
material question as to the availability of current information as referenced in
Rule 144(c),  Holder represents that it has complied with Rule 144(d) and (e) in
reasonable  detail, the selling broker represents that it has complied with Rule
144(f),  and the Company is provided with a copy of Holder's  notice of proposed
sale and/or transfer.

         4.4 Transfer Procedure.  If Holder is allowed to transfer or assign all
or part of this Warrant or any interest therein, Holder shall give the Company a
written  notice of the portion of the  Warrant  being  transferred,  such notice
setting  forth the  name,  address  and  taxpayer  identification  number of the
transferee,  and, together with such notice, Holder shall surrender this Warrant
to the Company for reissuance to the  transferee  (and to the new Warrant Holder
for any remaining  Shares, if applicable).  As a condition to sale,  transfer or
assignment (other than pursuant to a registration statement) of this Warrant and
the Shares  issuable upon exercise of this  Warrant,  the Holder shall  confirm,
acknowledge and agree to the representations, warranties and agreements forth in
Section 4 hereof.

5. GENERAL PROVISIONS.

         5.1  Notices.  Any and all notices  and  Transfer  Notices  required or
permitted to be given to a party pursuant to the provisions of this Warrant will
be in writing and will be effective and deemed to provide such party  sufficient
notice under this Warrant on the earliest of the  following:  (i) at the time of
personal delivery, if delivery is in person; (ii) at the time of


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<PAGE>

transmission by facsimile,  addressed to the other party at its facsimile number
specified  herein (or  hereafter  modified by  subsequent  notice to the parties
hereto),  with confirmation of receipt verifying successful  transmission of the
facsimile;  (iii) one (1) business day after  deposit with an express  overnight
courier  for  United  States  deliveries,  or two (2)  business  days after such
deposit for deliveries outside of the United States, with proof of delivery from
the courier  requested;  or (iv) three (3)  business  days after  deposit in the
United  States mail by certified  mail  (return  receipt  requested)  for United
States deliveries.

                  All notices  for  delivery  outside the United  States will be
sent by facsimile or by express courier. All notices not delivered personally or
by facsimile will be sent with postage and/or other charges prepaid and properly
addressed  to the party to be notified at the  address or  facsimile  number set
forth below the  signature  lines to this  Warrant,  or at such other address or
facsimile number as such other party may designate by one of the indicated means
of notice  herein to the other  parties  hereto.  Notices to the Company will be
marked "Attention: President". Notices by facsimile shall be machine verified as
received.

         5.2  Governing  Law.  This Warrant will be governed by and construed in
accordance  with the laws of the State of  California,  without giving effect to
that body of laws pertaining to conflict of laws.

         5.3 Further  Assurances.  The  parties  agree to execute  such  further
documents and  instruments and to take such further actions as may be reasonably
necessary to carry out the purposes and intent of this Warrant.

         5.4 Titles and  Headings.  The titles,  captions  and  headings of this
Warrant are  included  for ease of  reference  only and will be  disregarded  in
interpreting or construing this Warrant.  Unless otherwise  specifically stated,
all  references  herein to "sections" and  "exhibits"  will mean  "sections" and
"exhibits" to this Warrant.

         5.5  Counterparts.  This  Warrant  may be  executed  in any  number  of
counterparts,  each of which when so executed  and  delivered  will be deemed an
original, and all of which together shall constitute one and the same agreement.

         5.6 Severability. If any provision of this Warrant is determined by any
court  or  arbitrator  of  competent  jurisdiction  to be  invalid,  illegal  or
unenforceable  in any respect,  such  provision  will be enforced to the maximum
extent  possible  given the  intent of the  parties  hereto.  If such  clause or
provision  cannot be so enforced,  such  provision  shall be stricken  from this
Warrant and the  remainder of this Warrant shall be enforced as if such invalid,
illegal or unenforceable clause or provision had (to the extent not enforceable)
never been contained in this Warrant. Notwithstanding the forgoing, if the value
of this Warrant based upon the substantial  benefit of the bargain for any party
is materially  impaired,  which  determination as made by the presiding court or
arbitrator of competent  jurisdiction shall be binding,  then both parties agree
to substitute such provision(s) through good faith negotiations.

         5.7 Facsimile Signatures. This Warrant may be executed and delivered by
facsimile and upon such delivery the facsimile  signature will be deemed to have
the same effect as if the  original  signature  had been  delivered to the other
party.  The  original  signature  copy shall be  delivered to the other party by
express overnight  delivery.  The failure to deliver the original signature copy
and/or the  nonreceipt of the original  signature copy shall have no effect upon
the binding and enforceable nature of this Warrant.

                                       8
<PAGE>

         5.8  Amendment  and  Waivers.  This  Warrant  may be amended  only by a
written  agreement  executed by each of the parties  hereto.  No amendment of or
waiver  of,  or  modification  of any  obligation  under  this  Warrant  will be
enforceable  unless  set forth in a writing  signed by the party  against  which
enforcement is sought.  Any amendment  effected in accordance  with this Section
5.8  will be  binding  upon all  parties  hereto  and  each of their  respective
successors  and  assigns.  No delay or  failure to  require  performance  of any
provision of this Warrant shall constitute a waiver of that provision as to that
or any other  instance.  No waiver  granted  under  this  Warrant  as to any one
provision  herein shall  constitute a subsequent  waiver of such provision or of
any  other  provision  herein,  nor  shall  it  constitute  the  waiver  of  any
performance other than the actual performance specifically waived.

         5.9 Entire  Agreement.  This  Warrant  and the  documents  referred  to
herein,  including  but not  limited  to the Stock  Purchase  Agreement  between
Company and Holder dated of even date herewith,  constitute the entire agreement
and  understanding  of the parties  with  respect to the subject  matter of this
Warrant, and supersede all prior understandings and agreements,  whether oral or
written,  between or among the  parties  hereto  with  respect  to the  specific
subject matter hereof.

                [REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]


                                       9
<PAGE>


         IN WITNESS  WHEREOF,  the parties have  executed this Warrant as of the
date first written above.

WARRANT HOLDER:

RICHCONE  PTY  LIMITED AS                          )
TRUSTEE  OF THE  RICHCONE  UNIT
TRUST
is affixed in accordance with its constitution     )
in the presence of:                                )

/s/ Estelle Sheli Lubowski              /s/ David Zachary Lubowski
 ...................................    ...................................
Secretary/Director                     Director

Estelle Sheli Lubowski                  David Zachary Lubowski
 ...................................    ...................................
Name of Secretary/Director (print)     Name of Director (print)




Address: 4 Cranbrook Road, Rose Bay, NSW, Australia, 2029

Attention to: Mr David Lubowski & Mr Michael Kloster

Facsimile: (02) 9362 0367 & (02) 9363 5526



COMPANY:

CELLEGY PHARMACEUTICALS, INC.

By: /s/ A. Richard Juelis
   --------------------------------------------------

Title: VP, Finance & CFO
      -----------------------------------------------

Address:      349 Oyster Point Blvd., #200
              South San Francisco, CA 94080
Attention to: President

Facsimile: 650-616-2222


                                       10
<PAGE>



                                    EXHIBIT A

                               NOTICE OF EXERCISE

                  (TO BE SIGNED ONLY UPON EXERCISE OF WARRANT)

1. Election. The undersigned hereby elects to purchase ___________ shares of the
Common  Stock  of  CELLEGY  PHARMACEUTICALS,  INC.,  a  California  corporation,
pursuant to the terms of the  attached  Warrant to Purchase  Stock with an Issue
Date of _________,  2000 (the "Warrant"),  and the Undersigned  tenders herewith
payment of the total purchase price of such shares in full,  pursuant to a check
or wire transfer, in the amount of $__________.

2. Please issue a certificate or  certificates  representing  said shares in the
name of the  undersigned.  The  undersigned  represents that it is acquiring the
shares  solely for its own  account and not as a nominee for any other party and
not with a view toward the resale or distribution thereof except to an affiliate
(as defined in Rule 501(b) of the Act) in compliance with applicable  securities
laws and hereby  confirms  and  agrees to the  representations,  warranties  and
agreements that are set forth in Section 4 of the attached Warrant.

                                            __________________________________
                                            (Name)
                                            __________________________________
                                            __________________________________
                                            __________________________________
                                            Address

                                            __________________________________
                                            (Signature of Holder)

                                            SIGNATURE GUARANTEE

                                            __________________________________





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