TRIANGLE PHARMACEUTICALS INC
SC 13D, 1997-06-16
PHARMACEUTICAL PREPARATIONS
Previous: NCO GROUP INC, 424A, 1997-06-16
Next: PRUDENTIAL EMERGING GROWTH FUND INC, 497, 1997-06-16



                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934
                                (Amendment No. )*

                         TRIANGLE PHARMACEUTICALS, INC.
                       ----------------------------------
                                (Name of Issuer)

                         Common Stock, $0.001 Par Value
                       ---------------------------------
                         (Title of Class of Securities)

                                    89589H104
                              -------------------
                                 (CUSIP Number)

                              Stephen M. Vine, Esq.
                    Akin, Gump, Strauss, Hauer & Feld, L.L.P.
                               590 Madison Avenue
                            New York, New York 10022
                                 (212) 872-1000
                  --------------------------------------------
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                  June 6, 1997
                             ----------------------
                      (Date of Event which Requires Filing
                               of this Statement)

If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [_].

Note: Six copies of this statement, including all exhibits, should be filed with
the  Commission.  See Rule 13d- 1(a) for other  parties to whom copies are to be
sent.

*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter disclosure
provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).

                         Continued on following page(s)
                               Page 1 of 50 Pages
                             Exhibit Index: Page 23



<PAGE>


                                                              Page 2 of 50 Pages

                                  SCHEDULE 13D

CUSIP No. 89589H104


1        Name of Reporting Person
         S.S. or I.R.S. Identification No. of Above Person

                  QUANTUM INDUSTRIAL PARTNERS LDC

2        Check the Appropriate Box If a Member of a Group*
                                                     a.  [_]
                                                     b.  [x]

3        SEC Use Only

4        Source of Funds*

                  WC

5        Check Box If Disclosure of Legal  Proceedings  Is Required  Pursuant to
         Items 2(d) or 2(e) [_]

6        Citizenship or Place of Organization

                  Cayman Islands

                           7        Sole Voting Power
  Number of                                 1,000,000
   Shares
Beneficially               8        Shared Voting Power
  Owned By                                  0
    Each
  Reporting                9        Sole Dispositive Power
   Person                                   1,000,000
    With
                           10       Shared Dispositive Power
                                            0

11       Aggregate Amount Beneficially Owned by Each Reporting Person

                                            1,000,000

12       Check Box If the Aggregate  Amount in Row (11) Excludes Certain Shares*
         [x]

13       Percent of Class Represented By Amount in Row (11)

                                    5.11%

14       Type of Reporting Person*

                  OO; IV

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>


                                                              Page 3 of 50 Pages

                                  SCHEDULE 13D

CUSIP No. 89589H104


1        Name of Reporting Person
         S.S. or I.R.S. Identification No. of Above Person

                  QIH MANAGEMENT INVESTOR, L.P.

2        Check the Appropriate Box If a Member of a Group*
                                                     a.  [_]
                                                     b.  [x]

3        SEC Use Only

4        Source of Funds*

                  AF

5        Check Box If Disclosure of Legal  Proceedings  Is Required  Pursuant to
         Items 2(d) or 2(e) [_]

6        Citizenship or Place of Organization

                  Delaware

                           7        Sole Voting Power
  Number of                                 1,000,000
   Shares
Beneficially               8        Shared Voting Power
  Owned By                                  0
   Each
  Reporting                9        Sole Dispositive Power
   Person                                   1,000,000
    With
                           10       Shared Dispositive Power
                                            0

11       Aggregate Amount Beneficially Owned by Each Reporting Person

                                            1,000,000

12       Check Box If the Aggregate  Amount in Row (11) Excludes Certain Shares*
         [x]

13       Percent of Class Represented By Amount in Row (11)

                                    5.11%

14       Type of Reporting Person*

                  PN; IA

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>


                                                              Page 4 of 50 Pages

                                  SCHEDULE 13D

CUSIP No. 89589H104


1        Name of Reporting Person
         S.S. or I.R.S. Identification No. of Above Person

                  QIH MANAGEMENT, INC.

2        Check the Appropriate Box If a Member of a Group*
                                                     a.  [_]
                                                     b.  [x]

3        SEC Use Only

4        Source of Funds*

                  AF

5        Check Box If Disclosure of Legal  Proceedings  Is Required  Pursuant to
         Items 2(d) or 2(e) [_]

6        Citizenship or Place of Organization

                  Delaware

                           7        Sole Voting Power
  Number of                                 1,000,000
   Shares
Beneficially               8        Shared Voting Power
  Owned By                                  0
   Each
  Reporting                9        Sole Dispositive Power
   Person                                   1,000,000
    With
                           10       Shared Dispositive Power
                                            0

11       Aggregate Amount Beneficially Owned by Each Reporting Person

                                            1,000,000

12       Check Box If the Aggregate  Amount in Row (11) Excludes Certain Shares*
         [x]

13       Percent of Class Represented By Amount in Row (11)

                                    5.11%

14       Type of Reporting Person*

                  CO

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>


                                                              Page 5 of 50 Pages

                                  SCHEDULE 13D

CUSIP No. 89589H104

1        Name of Reporting Person
         S.S. or I.R.S. Identification No. of Above Person

                  Soros Fund Management LLC

2        Check the Appropriate Box If a Member of a Group*
                                                     a.  [_]
                                                     b.  [x]

3        SEC Use Only

4        Source of Funds*

                  AF

5        Check Box If Disclosure of Legal  Proceedings  Is Required  Pursuant to
         Items 2(d) or 2(e) [_]

6        Citizenship or Place of Organization

                  Delaware

                           7        Sole Voting Power
 Number of                                  1,989,500
   Shares
Beneficially               8        Shared Voting Power
  Owned By                                  0
    Each
  Reporting                9        Sole Dispositive Power
   Person                                   1,989,500
    With
                           10       Shared Dispositive Power
                                            0

11       Aggregate Amount Beneficially Owned by Each Reporting Person

                                            1,989,500

12       Check Box If the Aggregate  Amount in Row (11) Excludes Certain Shares*
         [x]

13       Percent of Class Represented By Amount in Row (11)

                                            10.16%

14       Type of Reporting Person*

                  OO; IA

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>


                                                              Page 6 of 50 Pages

                                  SCHEDULE 13D

CUSIP No. 89589H104

1        Name of Reporting Person
         S.S. or I.R.S. Identification No. of Above Person

                  George Soros (in the capacity described herein)

2        Check the Appropriate Box If a Member of a Group*
                                                     a.  [_]
                                                     b.  [x]

3        SEC Use Only

4        Source of Funds*

                  AF

5        Check Box If Disclosure of Legal  Proceedings  Is Required  Pursuant to
         Items 2(d) or 2(e) [_]

6        Citizenship or Place of Organization

                  United States

                           7        Sole Voting Power
 Number of                                  0
   Shares
Beneficially               8        Shared Voting Power
  Owned By                                  1,989,500
    Each
  Reporting                9        Sole Dispositive Power
   Person                                    0
    With
                           10       Shared Dispositive Power
                                            1,989,500

11       Aggregate Amount Beneficially Owned by Each Reporting Person

                                            1,989,500

12       Check Box If the Aggregate  Amount in Row (11) Excludes Certain Shares*
         [x]

13       Percent of Class Represented By Amount in Row (11)

                                            10.16%

14       Type of Reporting Person*

                  IA

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>


                                                              Page 7 of 50 Pages

                                  SCHEDULE 13D

CUSIP No. 89589H104


1        Name of Reporting Person
         S.S. or I.R.S. Identification No. of Above Person

                  Stanley F. Druckenmiller (in the capacity described herein)

2        Check the Appropriate Box If a Member of a Group*
                                                     a.  [_]
                                                     b.  [x]

3        SEC Use Only

4        Source of Funds*

                  AF

5        Check Box If Disclosure of Legal  Proceedings  Is Required  Pursuant to
         Items 2(d) or 2(e) [_]

6        Citizenship or Place of Organization

                  United States

                           7        Sole Voting Power
 Number of                                  800,000
   Shares
Beneficially               8        Shared Voting Power
  Owned By                                  1,989,500
    Each
  Reporting                9        Sole Dispositive Power
   Person                                   800,000
    With
                           10       Shared Dispositive Power
                                            1,989,500

11       Aggregate Amount Beneficially Owned by Each Reporting Person

                                            2,789,500

12       Check Box If the Aggregate  Amount in Row (11) Excludes Certain Shares*
         [_]


13       Percent of Class Represented By Amount in Row (11)

                                    14.24%

14       Type of Reporting Person*

                  IA
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>


                                                              Page 8 of 50 Pages

                                  SCHEDULE 13D

CUSIP No. 89589H104

1        Name of Reporting Person
         S.S. or I.R.S. Identification No. of Above Person

                  Duquesne Capital Management, L.L.C.

2        Check the Appropriate Box If a Member of a Group*
                                                     a.  [_]
                                                     b.  [x]

3        SEC Use Only

4        Source of Funds*

                  WC

5        Check Box If Disclosure of Legal  Proceedings  Is Required  Pursuant to
         Items 2(d) or 2(e) [_]

6        Citizenship or Place of Organization

                  Pennsylvania

                           7        Sole Voting Power
 Number of                                  800,000
   Shares
Beneficially               8        Shared Voting Power
  Owned By                                  0
    Each
  Reporting                9        Sole Dispositive Power
   Person                                   800,000
    With
                           10       Shared Dispositive Power
                                            0

11       Aggregate Amount Beneficially Owned by Each Reporting Person

                                            800,000

12       Check Box If the Aggregate  Amount in Row (11) Excludes Certain Shares*
         [x]

13       Percent of Class Represented By Amount in Row (11)

                                            4.08%

14       Type of Reporting Person*

                  OO; IA
            
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>


                                                              Page 9 of 50 Pages


               This Statement on Schedule 13D relates to shares of Common Stock,
$0.001 par value per share (the  "Shares"),  of Triangle  Pharmaceuticals,  Inc.
(the  "Issuer").  This  Statement  is being filed by the  Reporting  Persons (as
defined  herein)  to report  recent  acquisitions  of Shares of the  Issuer as a
result  of which  certain  of the  Reporting  Persons  may be  deemed  to be the
beneficial owners of more than 5% of the total number of outstanding Shares.


Item 1.        Security and Issuer.

               This  Statement  relates  to  the  Shares.  The  address  of  the
principal  executive office of the Issuer is 4 University Place, 4611 University
Drive, Durham, North Carolina, 27707.

Item 2.        Identity and Background.

               This  Statement is being filed on behalf of each of the following
persons (collectively, the "Reporting Persons"):

          i)   Quantum Industrial Partners LDC ("QIP");

          ii)  QIH Management Investor, L.P. ("QIHMI");

          iii) QIH Management, Inc. ("QIH Management");

          iv)  Soros Fund Management LLC ("SFM LLC");

          v)   George Soros ("Mr. Soros");

          vi)  Stanley F. Druckenmiller ("Mr. Druckenmiller"); and

          vii) Duquesne Capital Management, L.L.C. ("Duquesne LLC").

               This statement relates to Shares held for the accounts of Quantum
Partners (as defined  herein),  Quasar  Partners (as defined  herein),  QIP, and
Duquesne Fund (as defined herein).

                              The Reporting Persons
                              ---------------------

QIP, QIHMI and QIH Management
- -----------------------------

               QIP is a Cayman Islands  exempted  limited  duration company with
its principal  address at Kaya  Flamboyan 9,  Willemstad,  Curacao,  Netherlands
Antilles.  The principal  business of QIP is investment in  securities.  Current
information concerning the identity and background of the directors and officers
of QIP and QIH Management is set forth in Annex A hereto,  which is incorporated
by reference in response to this Item 2.

               QIHMI,  an  investment  advisory  firm  organized  as a  Delaware
limited partnership,  is a minority shareholder of, and (pursuant to constituent
documents  of QIP) is vested  with  investment  discretion  with  respect to the
portfolio  assets held for the account of, QIP. The principal  business of QIHMI



<PAGE>


                                                             Page 10 of 50 Pages

is to provide  management  and advisory  services to, and to invest in, QIP. QIH
Management,  a Delaware  corporation of which Mr. Soros is the sole shareholder,
is the sole general partner of QIHMI.  The principal  business of QIH Management
is to serve as the sole general partner of QIHMI.  QIHMI and QIH Management have
their principal  offices at 888 Seventh Avenue,  33rd Floor,  New York, New York
10106.  QIHMI, by reason of its investment  discretion over the securities owned
by QIP, and QIH Management,  as the sole general  partner of QIHMI,  may each be
deemed  the  beneficial  owner of the  Shares  held for the  account  of QIP for
purposes of Section  13(d) of the  Securities  Exchange Act of 1934,  as amended
(the "Act").

               Mr. Soros has entered  into an  agreement  dated as of January 1,
1997 with SFM LLC pursuant to which Mr. Soros has, among other things, agreed to
use his best efforts to cause QIH  Management,  as the general partner of QIHMI,
to act at the direction of SFM LLC,  which  agreement to so act shall  terminate
upon the earlier of (a) the  assignment  to SFM LLC of the legal and  beneficial
ownership  interest in QIH  Management  and (b) the assignment to SFM LLC of the
general partnership interest in QIHMI (the "QIP Contract").


SFM LLC, Mr. Soros, Mr. Druckenmiller and Duquesne LLC
- ------------------------------------------------------

               The business of SFM LLC is managed through a Management Committee
(the "Management  Committee")  comprised of Mr. Soros, Mr. Druckenmiller and Mr.
Gary Gladstein. SFM LLC, a Delaware limited liability company, has its principal
office at 888  Seventh  Avenue,  33rd  Floor,  New  York,  New York  10106.  Its
principal  business  is  to  serve,  pursuant  to  contract,  as  the  principal
investment manager to several foreign investment  companies (the "SFM Clients"),
including  Quantum Fund (as defined  herein),  Quantum  Partners,  the principal
operating  subsidiary of Quantum  Fund,  and Quasar  Partners.  SFM LLC has been
granted investment discretion over portfolio investments,  including the Shares,
held for the accounts of Quantum Partners LDC, a Cayman Islands exempted limited
duration company ("Quantum Partners"), Quantum Fund N.V., a Netherlands Antilles
company ("Quantum Fund") and Quasar  International  Partners C.V., a Netherlands
Antilles limited partnership ("Quasar Partners").  Each of Quantum Fund, Quantum
Partners  and Quasar  Partners  has its  principal  office at Kaya  Flamboyan 9,
Willemstad,  Curacao,  Netherlands  Antilles.  SFM LLC's  contracts with the SFM
Clients  generally  provide  that  SFM  LLC is  responsible  for  designing  and
implementing  the SFM Clients'  overall  investment  strategies;  for conducting
direct  portfolio  management  strategies to the extent that SFM LLC  determines
that it is appropriate to utilize its own portfolio management capabilities; for
selecting,  evaluating  and  monitoring  other  investment  advisors  who manage
separate  portfolios  on  behalf  of the SFM  Clients;  and for  allocating  and
reallocating the SFM Clients' assets among the outside managers and itself.

               Mr. Soros,  as Chairman of SFM LLC, has the ability to direct the
investment  decisions  of SFM LLC and as such may be deemed  to have  investment
discretion over the Shares held for the accounts of Quantum  Partners and Quasar
Partners.  Mr.  Druckenmiller,  as Lead  Portfolio  Manager of SFM LLC,  has the
ability to direct the investment  decisions of SFM LLC and as such may be deemed
to have  investment  discretion over the Shares held for the accounts of Quantum
Partners and Quasar  Partners.  Set forth in Annex B hereto and  incorporated by
reference  in  response to this Item 2 and  elsewhere  in this  Schedule  13D as
applicable is a list of the Managing Directors of SFM LLC.

               The principal  occupation of Mr. Soros, a United States  citizen,
is his  direction  of the  activities  of SFM LLC,  which is carried  out in his
capacity as Chairman of SFM LLC at SFM LLC's principal office.

               The principal  occupation of Mr.  Druckenmiller,  a United States
citizen,  is  his  position  as  Lead  Portfolio  Manager  and a  Member  of the



<PAGE>


                                                             Page 11 of 50 Pages

Management  Committee  of SFM LLC,  which is carried out at SFM LLC's  principal
office. Mr.  Druckenmiller also owns a 75% interest in, and is the sole managing
member  of,  Duquesne  LLC,  an  investment   advisory  firm.  Duquesne  LLC,  a
Pennsylvania  limited  liability  company,  has its  principal  offices  at 2579
Washington Road, Suite 322, Pittsburgh,  Pennsylvania 15241-2591.  Its principal
business  is to serve,  pursuant  to  contract,  as a  discretionary  investment
advisor  to a  limited  number  of  institutional  clients  (the  "Duquesne  LLC
Clients"),  including  Duquesne  Fund,  L.P.,  a  Delaware  limited  partnership
("Duquesne  Fund").  Duquesne  Fund has its  principal  office  at c/o  Duquesne
Holdings LLC, Box N9204, Charlotte House, Charlotte Street, Nassau, Bahamas. Set
forth in Annex C hereto and incorporated by reference in response to this Item 2
and  elsewhere in this  Schedule 13D as  applicable  is a list of the  executive
officers of Duquesne LLC.

               Pursuant to  regulations  promulgated  under Section 13(d) of the
Act, SFM LLC, pursuant to the provisions of the QIP Contract,  Mr. Soros, in his
capacity as Chairman of SFM LLC, and Mr. Druckenmiller,  in his capacity as Lead
Portfolio  Manager  of SFM LLC,  each may be  deemed a  beneficial  owner of the
Shares held for the account of QIP.

               Pursuant to  regulations  promulgated  under Section 13(d) of the
Act,  SFM LLC,  Mr.  Soros,  in his  capacity as  Chairman  of SFM LLC,  and Mr.
Druckenmiller, in his capacity as Lead Portfolio Manager of SFM LLC, each may be
deemed a beneficial owner of the Shares held for the account of Quantum Partners
and  Quasar  Partners  as a result of the  contractual  authority  of SFM LLC to
exercise voting and dispositive power with respect to such Shares.

               Pursuant to  regulations  promulgated  under Section 13(d) of the
Act, each of Duquesne LLC and Mr.  Druckenmiller,  by virtue of his interest in,
and  position  as sole  managing  member  of,  Duquesne  LLC,  may be  deemed  a
beneficial owner of the Shares held for the account of Duquesne Fund as a result
of the contractual  authority of Duquesne LLC to exercise voting and dispositive
power with respect to such Shares.

               During  the  past  five  years,  none of the  Reporting  Persons,
Quantum  Partners,  Quasar  Partners and, to the best of the Reporting  Persons'
knowledge,  any other person  identified in response to this Item 2 has been (a)
convicted in a criminal proceeding,  or (b) a party to any civil proceeding as a
result of which it or he has been  subject to a judgment,  decree or final order
enjoining future violations of, or prohibiting or mandating  activities  subject
to, federal or state  securities  laws, or finding any violation with respect to
such laws.

Item 3.        Source and Amount of Funds or Other Consideration.

               On June 6, 1997 each of QIP,  Quantum  Partners and Duquesne Fund
entered into a Stock Purchase  Agreement (the "Stock Purchase  Agreement")  with
the Issuer,  a copy of which is attached hereto as Exhibit E and incorporated by
reference  in  response  to this  Item 3.  Pursuant  to the  terms of the  Stock
Purchase  Agreement QIP expended  $15,000,000 of its working capital to purchase
1,000,000 Shares, Quantum Partners expended $3,000,000 of its working capital to
purchase  200,000  Shares and Duquesne LLC expended  $12,000,000  of the working
capital of Duquesne  Fund to  purchase  800,000  Shares.  In  addition,  Quantum
Partners   expended   approximately   $224,852   to   purchase   Shares  in  the
over-the-counter market in the last sixty days, as disclosed on Annex D hereto.

               The Shares  held for the  accounts  of Quantum  Partners,  Quasar
Partners,  QIP,  other SFM  Clients,  Duquesne  Fund and/or  other  Duquesne LLC
Clients may be held through  margin  accounts  maintained  with  brokers,  which
extend margin  credit as and when  required to open or carry  positions in their
margin  accounts,  subject  to  applicable  federal  margin  regulations,  stock



<PAGE>


                                                             Page 12 of 50 Pages

exchange rules and such firms' credit policies.  The Shares which may be held in
the margin  accounts are pledged as  collateral  security  for the  repayment of
debit balances in the respective accounts.

Item 4.        Purpose of Transaction.

               All of the Shares  reported herein as having been acquired for or
disposed of from the accounts of QIP, Quantum  Partners,  Quasar Partners and/or
Duquesne Fund were acquired or disposed of for  investment  purposes.  Except as
described in Item 6, none of Quantum  Partners,  Quasar Partners,  the Reporting
Persons  nor,  to the  best of their  knowledge,  any of the  other  individuals
identified  in response to Item 2, has any plans or proposals  that relate to or
would result in any of the transactions  described in subparagraphs  (a) through
(j) of Item 4 of Schedule 13D.

               Mr.  Soros,  Mr.  Druckenmiller  and SFM LLC reserve the right to
acquire,  or cause to be  acquired,  additional  securities  of the  Issuer,  to
dispose, or cause to be disposed of, such securities at any time or to formulate
other  purposes,  plans  or  proposals  regarding  the  Issuer  or  any  of  its
securities,  to the extent deemed  advisable in light of general  investment and
trading  policies of the  Reporting  Persons  and/or other SFM  Clients,  market
conditions or other factors.

               Mr.  Druckenmiller and Duquesne LLC reserve the right to acquire,
or cause to be acquired,  additional  securities of the Issuer,  to dispose,  or
cause to be  disposed  of, such  securities  at any time or to  formulate  other
purposes,  plans or proposals regarding the Issuer or any of its securities,  to
the extent deemed advisable in light of general  investment and trading policies
of the Duquesne LLC Clients, market conditions or other factors.

Item 5.        Interest in Securities of the Issuer.

     (a)  (i)  Each  of  QIP,  QIHMI  and  QIH  Management  may  be  deemed  the
beneficial   owner  of  the  1,000,000  Shares  held  for  the  account  of  QIP
(approximately 5.11% of the total number of Shares outstanding).

          (ii) Each of SFM LLC and Mr. Soros may be deemed the beneficial  owner
of  1,989,500  Shares  (approximately  10.16%  of the  total  number  of  Shares
outstanding).  This number includes (A) 1,000,000 Shares held for the account of
QIP, (B) 964,500 Shares held for the account of Quantum  Partners and (C) 25,000
Shares held for the account of Quasar Partners.

          (iii)Mr.   Druckenmiller   may  be  deemed  the  beneficial  owner  of
2,789,500   Shares   (approximately   14.24%  of  the  total  number  of  Shares
outstanding).  This number consists of (A) 1,000,000 Shares held for the account
of QIP, (B) 964,500 Shares held for the account of Quantum Partners,  (C) 25,000
Shares held for the account of Quasar  Partners and (D) 800,000  Shares held for
the account of Duquesne Fund.

          (iv) Duquesne  LLC may be deemed the  beneficial  owner of the 800,000
Shares held for the account of Duquesne Fund  (approximately  4.08% of the total
number of Shares outstanding).

     (b)  (i)  Each of QIP, QIHMI (pursuant to QIP's constituent documents), QIH
Management (by virtue of its position as sole general  partner of QIHMI) and SFM
LLC  (pursuant to the terms of the QIP  Contract) may be deemed to have the sole
power to direct  voting and  disposition  of the  1,000,000  Shares held for the
account of QIP.


<PAGE>


                                                             Page 13 of 50 Pages

          (ii) Pursuant to the terms of the QIP  Contract and as a result of the
positions  held by Mr.  Soros and Mr.  Druckenmiller  with SFM LLC,  each of Mr.
Soros and Mr.  Druckenmiller  may be deemed to have  shared  power to direct the
voting and disposition of the 1,000,000 Shares held for the account of QIP.

          (iii)Pursuant to the terms of the  contract  between  Quantum Fund and
SFM LLC,  SFM LLC may be deemed to have sole  power to  direct  the  voting  and
disposition of the 964,500 Shares held for the account of Quantum Partners.

          (iv) Pursuant to the terms of the  contract  between  Quantum Fund and
SFM LLC and as a result of the positions held by Mr. Soros and Mr. Druckenmiller
with SFM LLC,  each of Mr.  Soros  and Mr.  Druckenmiller  may be deemed to have
shared power to direct the voting and disposition of the 964,500 Shares held for
the account of Quantum Partners.

          (v)  Pursuant to the terms of the contract between Quasar Partners and
SFM LLC,  SFM LLC may be deemed to have sole  power to  direct  the  voting  and
disposition of the 25,000 Shares held for the account of Quasar Partners.

          (vi) Pursuant to the terms of the contract between Quasar Partners and
SFM LLC and as a result of the positions held by Mr. Soros and Mr. Druckenmiller
with SFM LLC,  each of Mr.  Soros  and Mr.  Druckenmiller  may be deemed to have
shared power to direct the voting and  disposition of the 25,000 Shares held for
the account of Quasar Partners.

          (vii)Pursuant to the terms of the  contract  between  Duquesne LLC and
Duquesne  Fund and as a result of the position  held by Mr.  Druckenmiller  with
Duquesne LLC, each of Duquesne LLC and Mr.  Druckenmiller  may be deemed to have
the sole power to direct the voting and  disposition  of the 800,000 Shares held
for the account of Duquesne Fund.

     (c)       Except for the  transactions  described  in Item 3 and Item 6 and
those disclosed on Annex D hereto,  there have been no transactions with respect
to the Shares  since April 17, 1997 (60 days prior to the date hereof) by any of
the Reporting Persons, Quantum Partners, Quasar Partners or Duquesne Fund.

     (d)  (i)  The shareholders of QIP, including Quantum  Industrial  Holdings,
Ltd., a British Virgin Islands international business company, have the right to
participate in the receipt of dividends  from, or proceeds from the sale of, the
Shares held for the account of QIP in accordance with their ownership  interests
in QIP.

          (ii) The  shareholders of Quantum  Partners,  including  Quantum Fund,
have the right to participate in the receipt of dividends from, or proceeds from
the sale of, the Shares held for the account of Quantum  Partners in  accordance
with their ownership interests in Quantum Partners.

          (iii)The partners of Quasar Partners,  including Quasar  International
Fund N.V., a Netherlands Antilles corporation,  have the right to participate in
the receipt of dividends from, or proceeds from the sale of,  securities held by
Quasar  Partners  in  accordance  with  their  partnership  interests  in Quasar
Partners.

          (iv) The investors in Duquesne Fund have the right to  participate  in
the receipt of dividends from, or proceeds from the sale of, the Shares held for
the account of Duquesne Fund.



<PAGE>


                                                             Page 14 of 50 Pages

     (e) Not applicable.

               Each  of  QIP,  QIHMI  and  QIH  Management  expressly  disclaims
beneficial  ownership  of any Shares not held  directly  for the account of QIP.
Each of SFM LLC and Mr. Soros expressly  disclaims  beneficial  ownership of any
Shares not held for the  accounts  of the SFM  Clients  and the  account of QIP.
Duquesne LLC expressly disclaims beneficial ownership of any Shares not held for
the account of Duquesne Fund.

Item 6.        Contracts,  Arrangements,  Understandings  or Relationships  with
               Respect to Securities of the Issuer.

               In  connection  with their  acquisition  of certain of the Shares
reported herein,  QIP, Quantum Partners and Duquesne Fund entered into the Stock
Purchase Agreement which is incorporated herein by reference. The description of
the terms of the Stock Purchase  Agreement below is qualified in its entirety by
reference to the specific provisions of such agreement, which is attached hereto
as Exhibit E.

               Pursuant to Section  7.2(a) of the Stock Purchase  Agreement,  as
soon as  practicable  after the Issuer  becomes  eligible to file a registration
statement on Form S-3  registering  the resale of the Shares issued  pursuant to
the Stock Purchase  Agreement,  or, in the event that the Issuer is not eligible
to file a  registration  statement  on Form S-3  registering  the resale of such
Shares by November 1, 1997,  then on a  subsequent  date as soon as  practicable
after QIP,  Quantum  Partners  and/or  Duquesne Fund (defined  therein to be the
"Purchasers")  holding more than fifty  percent (50%) of such Shares may request
in writing, the Issuer shall prepare and file a registration  statement with the
Securities and Exchange  Commission under the Securities Act of 1933 to register
the  resale  of such  Shares  (and the  additional  789,500  Shares  held by the
Purchasers as of the date of execution of the Stock  Purchase  Agreement) by the
Purchasers and use its best efforts to cause such  registration  statement to be
declared effective.

               Pursuant to Section  7.2(f) of the Stock Purchase  Agreement,  in
the event any of the Purchasers desire to sell such Purchaser's  Shares,  issued
pursuant to the Stock Purchase Agreement, pursuant to the Registration Statement
(as defined  therein),  the  Purchaser  shall give the Issuer three (3) business
days'  notice of its desire to sell in reliance on such  Registration  Statement
including  an estimate of whether its desire is to sell more than 50,000 of such
Shares  (the  "Notice  of Sale," as defined  thereto).  The Issuer may refuse to
permit a  Purchaser  to resell  any such  Shares  pursuant  to the  Registration
Statement  if the Issuer  delivers  a  certificate  in writing to the  Purchaser
within three (3) business days  following the Issuer's  receipt of the Notice of
Sale to the effect that withdrawal of such  Registration  Statement is necessary
because a sale pursuant to the Registration  Statement in its then-current  form
could  constitute a violation of the federal  securities laws. In such an event,
the Issuer  shall use its best  efforts to amend the  Registration  Statement if
necessary as soon as  practicable  and in any event within sixty (60) days after
the  Issuer's  receipt of the Notice of Sale,  and shall  notify the  Purchasers
promptly after it has determined that such sale has become permissible under the
federal securities laws.  Certain  limitations on the Issuer's ability to refuse
to permit such a resale are set forth in Section 7.2(f).

               Pursuant to Section 7.4 of the Stock Purchase Agreement,  subject
to  certain  conditions,  upon the  request  of  holders of more than 50% of the
Shares issued pursuant to the Stock Purchase Agreement, the Issuer shall use its
best efforts to cause its Board of Directors to nominate and elect an individual
designated  in  writing  by such  holders,  to  serve on the  Issuer's  Board of
Directors,  which  individual must be acceptable to the Chairman of the Issuer's
Board of Directors.



<PAGE>


                                                             Page 15 of 50 Pages

               On June 11, 1996, the Issuer  entered into a Restated  Investors'
Rights  Agreement  (the  "Rights  Agreement")  with the  Investors  (as  defined
therein),  a copy of which is  incorporated  by  reference  as Exhibit F and the
provisions of which are  incorporated  herein by reference.  On June 6, 1997 the
Issuer entered into a First Amendment to Restated  Investors'  Rights  Agreement
(the "Amended  Rights  Agreement")  with the Investors (as defined  therein) and
QIP,  Quantum  Partners and Duquesne Fund, a copy of which is attached hereto as
Exhibit G and incorporated herein by reference.

               Subject to certain  conditions and pursuant to Section 1.3 of the
Registration Rights Agreement, QIP, Quantum Partners and Duquesne Fund have been
granted  certain  "piggy-back"  registration  rights.  If the Issuer proposes to
register  any of its stock or other  securities  it shall  give each  Holder (as
defined  therein,  including  each of QIP,  Quantum  Partners and Duquesne Fund)
notice of such  registration.  Thereafter,  and upon the written request of each
Holder,  given within twenty (20) days, the Issuer shall cause to be registered,
subject to certain cut-back  provisions,  all of the Registrable  Securities (as
defined therein) that each Holder has requested to be registered.

               In connection with the transaction  pursuant to which Shares were
issued pursuant to the Stock Purchase Agreement,  SFM LLC has agreed that, among
other things and subject to certain exceptions, neither it nor its affiliates or
controlling  persons will acquire or offer to acquire any voting securities,  or
rights to acquire  voting  securities,  of the Issuer for a period of six months
from  June 4,  1997,  subject  to the  shortening  of  such  period  in  certain
circumstances.

               From  time  to  time  each  of  the  Reporting  Persons,  Quantum
Partners,  Quasar  Partners,  other SFM  Clients,  Duquesne  Fund  and/or  other
Duquesne LLC Clients may lend  portfolio  securities to brokers,  banks or other
financial  institutions.  These loans typically  obligate the borrower to return
the  securities,  or an equal  amount of  securities  of the same class,  to the
lender and  typically  provide that the borrower is entitled to exercise  voting
rights and to retain dividends during the term of the loan. From time to time to
the extent  permitted by  applicable  law,  each of such persons or entities may
borrow the  Shares for the  purpose of  effecting,  and may  effect,  short sale
transactions,  and may purchase  securities for the purpose of closing out short
positions in such securities.

               Except as set forth  above  and as  described  in Items 3 hereto,
which is  incorporated  in this  Item 6 by  reference,  the  Reporting  Persons,
Quantum  Partners,  Quasar Partners and Duquesne Fund do not have any contracts,
arrangements,  understandings or relationships with respect to any securities of
the Issuer.



<PAGE>


                                                             Page 16 of 50 Pages

Item 7.        Material to be Filed as Exhibits.

          A.   Power of  Attorney  dated as of  January  1, 1997  granted by Mr.
Soros in favor of Mr. Sean C. Warren and Mr. Michael C. Neus.

          B.   Power of  Attorney  dated as of  January  1, 1997  granted by Mr.
Druckenmiller in favor of Mr. Sean C. Warren and Mr. Michael C. Neus.

          C.   Joint  Filing  Agreement  dated  June 16,  1997 by and among QIP,
QIHMI, QIH Management, SFM LLC, Mr. Soros, Mr. Druckenmiller and Duquesne LLC.

          D.   Power of Attorney  dated May 23, 1996  granted by QIP in favor of
Mr. Gary Gladstein, Mr. Sean Warren and Mr. Michael Neus.

          E.   Common Stock Purchase  Agreement  dated as of June 6, 1997 by and
among the Issuer and the Purchasers (as defined therein).

          F.   Restated Investors' Rights Agreement dated as of June 11, 1996 by
and among the Issuer and the  Investors (as defined  therein)  (filed as Exhibit
10.29 to the Issuer's Form S-1 Registration No. 333-11793).

          G.   First Amendment to Restated  Investors' Rights Agreement dated as
of June 6, 1997 by and among the Issuer,  the  Investors  (as defined  therein),
QIP, Quantum Partners and Duquesne Fund.




<PAGE>


                                                             Page 17 of 50 Pages

                                   SIGNATURES

               After  reasonable  inquiry  and to the best of my  knowledge  and
belief,  the  undersigned  certifies  that  the  information  set  forth in this
statement is true, complete and correct.

Date:  June 16, 1997

                                             QUANTUM INDUSTRIAL PARTNERS LDC


                                             By:  /S/ SEAN C. WARREN
                                                  -----------------------------
                                                  Sean C. Warren
                                                  Attorney-in-Fact


                                             QIH MANAGEMENT INVESTOR, L.P.

                                             By:  QIH Management, Inc.,
                                                  its General Partner


                                                  By:  /S/ SEAN C. WARREN
                                                       ------------------------
                                                       Sean C. Warren
                                                       Vice President


                                             QIH MANAGEMENT, INC.


                                             By:  /S/ SEAN C. WARREN
                                                  -----------------------------
                                                  Sean C. Warren
                                                  Vice President


                                             SOROS FUND MANAGEMENT LLC


                                             By:  /S/ SEAN C. WARREN
                                                  -----------------------------
                                                  Sean C. Warren
                                                  Managing Director



<PAGE>


                                                             Page 18 of 50 Pages

                                             GEORGE SOROS


                                             By:  /S/ SEAN C. WARREN
                                                  -----------------------------
                                                  Sean C. Warren
                                                  Attorney-in-Fact


                                             STANLEY F. DRUCKENMILLER


                                             By:  /S/ SEAN C. WARREN
                                                  -----------------------------
                                                  Sean C. Warren
                                                  Attorney-in-Fact


                                             DUQUESNE CAPITAL MANAGEMENT, L.L.C.


                                             By:  /S/ GERALD KERNER
                                                  -----------------------------
                                                  Gerald Kerner
                                                  Managing Director




<PAGE>


                                                             Page 19 of 50 Pages

                                     ANNEX A

            Directors and Officers of Quantum Industrial Partners LDC

Name/Title/Citizenship        Principal Occupation          Business Address
- ----------------------        --------------------          ----------------

Curacao Corporation           Managing Director of          Kaya Flamboyan 9
Company N.V.                  Netherlands Antilles          Willemstad
  Managing Director           corporations                  Curacao,
  (Netherlands Antilles)                                    Netherlands Antilles

Inter Caribbean Services      Adminstrative services        Citco Building
  Limited                                                   Wickhams Cay
  Secretary                                                 Road Town
  (British Virgin Islands)                                  Tortola
                                                            British Virgin 
                                                              Islands

                 Directors and Officers of QIH Management, Inc.

Name/Title/Citizenship        Principal Occupation          Business Address
- ----------------------        --------------------          ----------------

Gary Gladstein                Managing Director of          888 Seventh Avenue
Director and President        SFM LLC                       33rd Floor
(United States)                                             New York, NY  10106

Sean C. Warren                Managing Director of          888 Seventh Avenue
Director, Vice President      SFM LLC                       33rd Floor
and Secretary                                               New York, NY  10106
(United States)

Peter Streinger               Chief Financial Officer of    888 Seventh Avenue
Treasurer                     SFM LLC                       33rd Floor
(United States)                                             New York, NY  10106

Michael C. Neus               Assistant General Counsel     888 Seventh Avenue
Vice President and            of SFM LLC                    33rd Floor
Assistant Secretary                                         New York, NY  10106
(United States)


To the best of the Reporting Persons' knowledge:

(a)       None of the above persons holds any Shares.
(b)       None  of  the  above   persons   has  any   contracts,   arrangements,
          understandings or relationships with respect to the Shares.


<PAGE>


                                                             Page 20 of 50 Pages

                                     ANNEX B



               The following is a list of all of the persons (other than Stanley
Druckenmiller) who serve as Managing Directors of SFM LLC:


                               Scott K. H. Bessent
                                 Walter Burlock
                                Brian J. Corvese
                               Jeffrey L. Feinberg
                                  Arminio Fraga
                                 Gary Gladstein
                                    Ron Hiram
                                Robert K. Jermain
                                 David N. Kowitz
                               Alexander C. McAree
                                  Paul McNulty
                              Gabriel S. Nechamkin
                                   Steven Okin
                                  Dale Precoda
                               Lief D. Rosenblatt
                                 Mark D. Sonnino
                             Filiberto H. Verticelli
                                 Sean C. Warren

Each of the  above-listed  persons is a United States  citizen  whose  principal
occupation  is serving as Managing  Director of SFM LLC, and each has a business
address c/o Soros Fund Management LLC, 888 Seventh Avenue, 33rd Floor, New York,
New York 10106.

To the best of the Reporting Persons' knowledge:

(a)       None of the above persons holds any Shares.
(b)       None  of  the  above   persons   has  any   contracts,   arrangements,
          understandings or relationships with respect to the Shares.





<PAGE>


                                                             Page 21 of 50 Pages

                                     ANNEX C


               The  following  is a list  of all of the  persons  who  serve  as
executive officers of Duquesne LLC (other than Stanley F. Druckenmiller):


                          Michael A. Shay ("Mr. Shay")

                          Gerald Kerner ("Mr. Kerner")


               Mr. Shay is a United States citizen whose principal occupation is
serving as a Managing  Director of Duquesne LLC. Mr. Shay's business  address is
Duquesne  Capital   Management,   L.L.C.,   2579  Washington  Road,  Suite  322,
Pittsburgh, Pennsylvania 15241.

               Mr. Kerner is a United States citizen whose principal  occupation
is serving as a Managing Director of Duquesne LLC. Mr. Kerner's business address
is Duquesne  Capital  Management,  L.L.C.,  888 Seventh Avenue,  32nd Floor, New
York, New York 10106.

               To the best of the Reporting Persons' knowledge:

               (a)  None of the above persons hold any Shares.

               (b)  None of the above persons has any  contracts,  arrangements,
                    understandings or relationships with respect to the Shares.





<PAGE>


                                                             Page 22 of 50 Pages

                                     ANNEX D

                   RECENT TRANSACTIONS IN THE COMMON STOCK OF
                         TRIANGLE PHARMACEUTICALS, INC.

<TABLE>
<CAPTION>


                                        Date of             Nature of
For the Account of                    Transaction          Transaction           Number of Shares       Price Per Share
- ------------------                ---------------          -----------           ----------------       ---------------
<S>                              <C>                      <C>                   <C>                    <C>

Quantum Partners/1/                     5/05/97             PURCHASE                   2,000                   $15.08/2/

                                        5/05/97             PURCHASE                   2,500                   $15.38/2/

                                        5/06/97             PURCHASE                  10,000                   $15.63/2/

                                        6/06/97             PURCHASE                 200,000                   $15.00/3/

QIP/1/                                  6/06/97             PURCHASE               1,000,000                   $15.00/3/

Duquesne Fund/4/                        6/06/97             PURCHASE                 800,000                   $15.00/3/


</TABLE>




- ---------------------------------

/1/       All of these transactions were effected at the direction of SFM LLC.

/2/       These Shares were acquired in the  over-the-counter  market in routine
          brokerage transactions.

/3/       These Shares were acquired pursuant to the Stock Purchase Agreement.

/4/       This transaction was effected at the direction of Duquesne LLC.


<PAGE>


                                                             Page 23 of 50 Pages

                                  EXHIBIT INDEX


                                                                        Page No.
                                                                        --------

A.   Power of Attorney dated as of January 1, 1997 granted by Mr.
     George Soros in favor of Mr. Sean C. Warren and Mr.  Michael
     C. Neus............................................................. 24

B.   Power of Attorney dated as of January 1, 1997 granted by Mr.
     Stanley F.  Druckenmiller in favor of Mr. Sean C. Warren and
     Mr. Michael C. Neus................................................. 25

C.   Joint  Filing  Agreement  dated  June 16,  1997 by and among
     Quantum  Industrial  Partners LDC, QIH Management  Investor,
     L.P., QIH Management,  Inc.,  Soros Fund Management LLC, Mr.
     George  Soros,  Mr.  Stanley F.  Druckenmiller  and Duquesne
     Capital Management, L.L.C........................................... 26

D.   Power of  Attorney  dated May 23,  1996  granted  by Quantum
     Industrial Partners LDC in favor of Mr. Gary Gladstein,  Mr.
     Sean Warren and Mr. Michael Neus.................................... 28

E.   Common Stock Purchase  Agreement dated as of June 6, 1997 by
     and among Triangle Pharmaceuticals,  Inc. and the Purchasers
     (as defined therein) ............................................... 29

G.   First  Amendment  to Restated  Investors'  Rights  Agreement
     dated   as  of  June  6,   1997   by  and   among   Triangle
     Pharmaceuticals,  Inc., the Investors (as defined  therein),
     Quantum  Industrial  Partners LDC,  Quantum Partners LDC and
     Duquesne Fund, L.P.................................................. 46






                                                             Page 24 of 50 Pages

                                    EXHIBIT A

                                POWER OF ATTORNEY


KNOW ALL MEN BY THESE PRESENTS,  that I, GEORGE SOROS,  hereby make,  constitute
and appoint each of SEAN C. WARREN and MICHAEL C. NEUS, acting individually,  as
my agent and attorney-in-fact for the purpose of executing in my name, (a) in my
personal  capacity or (b) in my capacity as Chairman  of,  member of or in other
capacities  with  Soros  Fund  Management  LLC,  all  documents,   certificates,
instruments,  statements,  filings and agreements ("documents") to be filed with
or  delivered  to any foreign or domestic  governmental  or  regulatory  body or
required or  requested  by any other  person or entity  pursuant to any legal or
regulatory  requirement  relating to the acquisition,  ownership,  management or
disposition of securities or other investments, and any other documents relating
or ancillary  thereto,  including but not limited to, all documents  relating to
filings with the United States  Securities and Exchange  Commission  (the "SEC")
pursuant to the Securities  Act of 1933 or the  Securities  Exchange Act of 1934
(the "Act") and the rules and regulations promulgated thereunder, including: (1)
all documents relating to the beneficial  ownership of securities required to be
filed  with  the SEC  pursuant  to  Section  13(d) or  Section  16(a) of the Act
including, without limitation: (a) any acquisition statements on Schedule 13D or
Schedule  13G and  any  amendments  thereto,  (b) any  joint  filing  agreements
pursuant to Rule  13d-1(f) and (c) any initial  statements  of, or statements of
changes in,  beneficial  ownership of securities on Form 3, Form 4 or Form 5 and
(2) any  information  statements  on Form 13F  required to be filed with the SEC
pursuant to Section 13(f) of the Act.

All past acts of the attorney-in-fact in furtherance of the foregoing are hereby
ratified and confirmed.

This power of attorney shall be valid from the date hereof until revoked by me.

IN  WITNESS  WHEREOF,  I have  executed  this  instrument  as of the  1st day of
January, 1997.




                                   /s/ George Soros
                                   ------------------------
                                   GEORGE SOROS


                                                             Page 25 of 50 Pages

                                    EXHIBIT B

                                POWER OF ATTORNEY


KNOW ALL MEN BY THESE PRESENTS,  that I, STANLEY F. DRUCKENMILLER,  hereby make,
constitute  and  appoint  each of SEAN C.  WARREN and  MICHAEL  C. NEUS,  acting
individually,  as my agent and  attorney-in-fact for the purpose of executing in
my name,  (a) in my personal  capacity  or (b) in my capacity as Lead  Portfolio
Manager of, member of or in other capacities with Soros Fund Management LLC, all
documents,  certificates,   instruments,   statements,  filings  and  agreements
("documents")  to be  filed  with  or  delivered  to  any  foreign  or  domestic
governmental  or regulatory body or required or requested by any other person or
entity  pursuant  to  any  legal  or  regulatory  requirement  relating  to  the
acquisition,  ownership,  management  or  disposition  of  securities  or  other
investments,  and any other documents relating or ancillary  thereto,  including
but not limited to, all  documents  relating to filings  with the United  States
Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of
1933 or the  Securities  Exchange  Act of 1934  (the  "Act")  and the  rules and
regulations promulgated thereunder, including: (1) all documents relating to the
beneficial ownership of securities required to be filed with the SEC pursuant to
Section 13(d) or Section 16(a) of the Act including, without limitation: (a) any
acquisition  statements  on  Schedule  13D or  Schedule  13G and any  amendments
thereto,  (b) any joint filing agreements  pursuant to Rule 13d-1(f) and (c) any
initial  statements  of, or  statements of changes in,  beneficial  ownership of
securities  on Form 3, Form 4 or Form 5 and (2) any  information  statements  on
Form 13F required to be filed with the SEC pursuant to Section 13(f) of the Act.

All past acts of the attorney-in-fact in furtherance of the foregoing are hereby
ratified and confirmed.

This power of attorney shall be valid from the date hereof until revoked by me.

IN  WITNESS  WHEREOF,  I have  executed  this  instrument  as of the  1st day of
January, 1997.




                                           /s/ Stanley F. Druckenmiller
                                           ------------------------------------
                                           STANLEY F. DRUCKENMILLER




                                                             Page 26 of 50 Pages

                                    EXHIBIT C

                             JOINT FILING AGREEMENT

               The  undersigned  hereby agree that the statement on Schedule 13D
with respect to the Common Stock of Triangle  Pharmaceuticals,  Inc.  dated June
16, 1997 is, and any amendments  thereto signed by each of the undersigned shall
be,  filed  on  behalf  of each of us  pursuant  to and in  accordance  with the
provisions of Rule 13d-1(f) under the Securities Exchange Act of 1934.

Date:  June 16, 1997

                                             QUANTUM INDUSTRIAL PARTNERS LDC


                                             By:  /S/ SEAN C. WARREN
                                                  -----------------------------
                                                  Sean C. Warren
                                                  Attorney-in-Fact


                                             QIH MANAGEMENT INVESTOR, L.P.

                                             By:  QIH Management, Inc.,
                                                  its General Partner


                                                  By:  /S/ SEAN C. WARREN
                                                       ------------------------
                                                       Sean C. Warren
                                                       Vice President


                                             QIH MANAGEMENT, INC.


                                             By:  /S/ SEAN C. WARREN
                                                  -----------------------------
                                                  Sean C. Warren
                                                  Vice President


                                             SOROS FUND MANAGEMENT LLC


                                             By:  /S/ SEAN C. WARREN
                                                  -----------------------------
                                                  Sean C. Warren
                                                  Managing Director



<PAGE>


                                                             Page 27 of 50 Pages

                                             GEORGE SOROS


                                             By:  /S/ SEAN C. WARREN
                                                  -----------------------------
                                                  Sean C. Warren
                                                  Attorney-in-Fact


                                             STANLEY F. DRUCKENMILLER


                                             By:  /S/ SEAN C. WARREN
                                                  -----------------------------
                                                  Sean C. Warren
                                                  Attorney-in-Fact


                                             DUQUESNE CAPITAL MANAGEMENT, L.L.C.


                                             By:  /S/ GERALD KERNER
                                                  -----------------------------
                                                  Gerald Kerner
                                                  Managing Director



                                                             Page 28 of 50 Pages

                                    EXHIBIT D

                         QUANTUM INDUSTRIAL PARTNERS LDC
                                POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENT,  that the undersigned QUANTUM INDUSTRIAL PARTNERS
LDC (the "Company"), an exempted limited duration company existing and operating
under the laws of the Cayman Islands does, pursuant to a duly adopted resolution
of its Managing Director, hereby designate, constitute and appoint:

                  GARY GLADSTEIN, SEAN WARREN and MICHAEL NEUS

acting,  singly and not  jointly,  as its true and lawful  agent and attorney in
fact for the purpose of  executing  in its name,  all  documents,  certificates,
instruments,  statements,  filings and agreements ("documents") to be filed with
or  delivered  to any foreign or domestic  governmental  or  regulatory  body or
required or  requested  by any other  person or entity  pursuant to any legal or
regulatory  requirement  relating to the acquisition,  ownership,  management or
disposition of securities or other investments, and any other documents relating
or ancillary  thereto,  including but not limited to, all documents  relating to
filings with the United States  Securities and Exchange  Commission  (the "SEC")
pursuant to the Securities  Act of 1933 or the  Securities  Exchange Act of 1934
(the "Act") and the rules and regulations promulgated thereunder, including: (1)
all documents relating to the beneficial  ownership of securities required to be
filed  with  the SEC  pursuant  to  Section  13(d) or  Section  16(a) of the Act
including, without limitation: (a) any acquisition statements on Schedule 13D or
Schedule  13G and  any  amendments  thereto,  (b) any  joint  filing  agreements
pursuant to Rule  13d-1(f) and (c) any initial  statements  of, or statements of
changes in,  beneficial  ownership of securities on Form 3, Form 4 or Form 5 and
(2) any  information  statements  on Form 13F  required to be filed with the SEC
pursuant to Section 13(f) of the Act.

Each  attorney-in-fact  is hereby  authorized and empowered to perform all other
acts and deeds, which he or she in his or her sole discretion deems necessary or
appropriate  to carry out to the fullest  extent the terms and the intent of the
foregoing.  All  prior  acts  of each  attorney-in-fact  in  furtherance  of the
foregoing are hereby ratified and confirmed.

IN WITNESS WHEREOF, the Company has caused this document to be execute this 23rd
day of May, 1996.

                                        QUANTUM INDUSTRIAL PARTNERS LDC


                                        ---------------------------------------
                                        Curacao Corporation Company N.V.
                                        Managing Director




                                                             Page 29 of 50 Pages

                                    EXHIBIT E

                         TRIANGLE PHARMACEUTICALS, INC.

                         COMMON STOCK PURCHASE AGREEMENT



               This Common Stock Purchase Agreement (the "Agreement") is made as
of June __,  1997,  by and among  Triangle  Pharmaceuticals,  Inc.,  a  Delaware
corporation  (the  "Company") with its principal  office at 4 University  Place,
4611 University Drive, Durham, North Carolina,  27707, (919) 493-5925 (fax), and
the entities  listed on the Schedule of Investors  attached  hereto as Exhibit A
                                                                       ---------
(the  "Purchasers").  Unless otherwise  defined herein,  capitalized  terms used
herein  and  not  defined  herein  shall  have  the  meanings  given  to them in
Regulation S ("Regulation  S") under the Securities Act of 1933, as amended (the
"Securities Act").

                                    Section 1

                     Authorization and Sale of Common Stock
                     --------------------------------------

               1.1  Authorization.  The  Company  has  authorized  the  sale and
                    -------------
issuance of 2,000,000 shares of its Common Stock pursuant to this Agreement (the
"Shares").

               1.2 Sale of Common.  Subject to the terms and  conditions of this
                   --------------
Agreement,  the  Company  agrees  to issue and sell to each  Purchaser  and each
Purchaser severally agrees to purchase from the Company the number of Shares set
forth  opposite  each  Purchaser's  name on Exhibit A for $15.00 per share.  The
                                            --------- 
Company  shall be  responsible  for any  transfer  or stamp  taxes in respect of
issuing the Shares.

                                    Section 2

                             Closing Date; Delivery
                             ----------------------

               2.1 Closing  Date.  The closing of the  purchase  and sale of the
                   -------------
Shares  hereunder  (the  "Closing")  shall be held at the  offices  of  Brobeck,
Phleger & Harrison LLP, 1633 Broadway,  47th Floor,  New York, New York 10019 at
2:00 p.m. Eastern Daylight Savings Time on June ___, 1997, or at such other time
and place upon which the Company and the  Purchasers  purchasing the majority of
the Shares shall agree.  The date of the Closing is  hereinafter  referred to as
the "Closing Date."

               2.2  Delivery.  At the Closing,  the Company will deliver to each
                    -------- 
Purchaser a certificate,  registered in the Purchaser's name as shown on Exhibit
                                                                         -------
A,  representing  the number of Shares to be  purchased by the  Purchaser.  Such
- -
delivery  shall be against  payment of the purchase  price  therefor by check or
wire transfer to the Company in the amount set forth on Exhibit A. It is agreed
                                                        ---------
among all parties  that the  issuance  and sale of the Shares to the  Purchasers
shall occur as one simultaneous transaction at the Closing.


<PAGE>


                                                             Page 30 of 50 Pages


                                    Section 3

                  Representations and Warranties of the Company
                  ---------------------------------------------

               The Company  represents  and warrants to the Purchasers as of the
Closing as follows:

               3.1 Organization and Standing.  The Company is a corporation duly
                   -------------------------
organized and validly existing under, and by virtue of, the laws of the State of
Delaware  and is in good  standing as a domestic  corporation  under the laws of
said state.

               3.2 Corporate Power; Authorization. The Company has all requisite
                   ------------------------------
legal  and  corporate  power and has taken  all  requisite  corporate  action to
execute and deliver  this  Agreement,  to sell and issue the Shares and to carry
out and perform all of its  obligations  under this  Agreement.  This  Agreement
constitutes the legal, valid and binding obligation of the Company,  enforceable
in accordance  with its terms,  except (i) as limited by applicable  bankruptcy,
insolvency,  reorganization  or  similar  laws  relating  to  or  affecting  the
enforcement  of  creditors'  rights  generally  and (ii) as limited by equitable
principles generally. The execution and delivery of this Agreement does not, and
the performance of this Agreement and the compliance with the provisions  hereof
and the  issuance,  sale and  delivery  of the Shares by the  Company  will not,
materially  conflict  with,  or result in a material  breach or violation of the
terms,  conditions or provisions of, or constitute a material  default under, or
result in the creation or  imposition of any material lien pursuant to the terms
of, the  Certificate of  Incorporation  or Bylaws of the Company or any statute,
law, rule or regulation or any state or federal order, judgment or decree or any
indenture,  mortgage,  lease or other material  agreement or instrument to which
the Company or any of its properties is subject.

               3.3 Issuance and Delivery of the Shares. The Shares,  when issued
                   -----------------------------------   
and paid  for in  accordance  with the  provisions  of this  Agreement,  will be
validly issued and outstanding,  fully paid and nonassessable.  The issuance and
delivery of the Shares is not subject to preemptive or any other similar  rights
of the stockholders of the Company or any liens or encumbrances.

               3.4 SEC  Documents;  Financial  Statements.  Each report or proxy
                   --------------------------------------
statement  delivered  to the  Purchasers  is a true  and  complete  copy of such
document as filed by the Company with the  Securities  and  Exchange  Commission
(the "SEC").  The Company has  delivered to each  Purchaser its Annual Report on
Form 10-K for the year  ended  December  31,  1996  (the  "1996  10-K")  and its
Quarterly  Report on Form 10-Q for the quarter  ended March 31, 1997 (the "March
10-Q").  The Company has filed in a timely manner all documents that the Company
was  required  to file with the SEC under  Sections  13,  14(a) and 15(d) of the
Securities  Exchange Act of 1934,  as amended (the  "Exchange  Act"),  since its
initial public  offering.  As of their  respective  filing dates,  all documents
filed by the Company with the SEC (the "SEC Documents") complied in all material
respects with the  requirements  of the Exchange Act or the  Securities  Act, as
applicable. None of the SEC Documents as of their respective dates contained any
untrue  statement of material  fact or omitted to state a material fact required
to be stated therein or necessary to make the statements made therein,  in light


                                        2

<PAGE>


                                                             Page 31 of 50 Pages

of the circumstances  under which they were made, not misleading.  The financial
statements  of  the  Company  included  in the  SEC  Documents  (the  "Financial
Statements")  comply  as to  form  in  all  material  respects  with  applicable
accounting  requirements and with the published rules and regulations of the SEC
with respect thereto.  The Financial Statements have been prepared in accordance
with generally accepted accounting  principles  consistently  applied and fairly
present the consolidated  financial position of the Company and any subsidiaries
at the dates  thereof  and the  consolidated  results  of their  operations  and
consolidated  cash flows for the  periods  then ended  (subject,  in the case of
unaudited statements, to normal, recurring adjustments).

               3.5  Governmental  Consents.  No  consent,   approval,  order  or
                    ----------------------
authorization of, or registration,  qualification,  designation,  declaration or
filing with, any federal,  state, or local governmental authority on the part of
the Company is required in connection with the  consummation of the transactions
contemplated  by this  Agreement  except for (a) such  filings as have been made
prior to the Closing,  except that any notices of sale required to be filed with
the SEC under Regulation D of the Securities Act, or such  post-closing  filings
as may be required under  applicable state securities laws, which will be timely
filed within the applicable  periods therefor,  and (b) the filing of the Nasdaq
National Market Notification Form with the Nasdaq National Market.

               3.6 No Material  Adverse  Change.  Except as otherwise  disclosed
                   ----------------------------
herein or as disclosed to the Purchasers in writing prior to the Closing,  since
March 31,  1997,  there have not been any  changes in the  assets,  liabilities,
financial  condition,  business prospects or operations of the Company from that
reflected in the March 10-Q and the Financial  Statements  except changes in the
ordinary course of business which have not been,  either  individually or in the
aggregate, materially adverse.

               3.7 Authorized Capital Stock. The authorized capital stock of the
                   ------------------------ 
Company  consists of (i) 75,000,000  shares of Common Stock, of which 17,585,108
shares are outstanding,  and (ii) 5,000,000  shares of Preferred Stock,  none of
which is outstanding.  Except as set forth in the March 10-Q or the 1996 10-K or
as disclosed to the  Purchasers in writing prior to the Closing,  and except for
the  grant of  options  to  purchase  a total of 15,500  shares of Common  Stock
granted on May 1, 1997,  there are no  outstanding  options,  warrants  or other
securities  exercisable  for,  or  convertible  into,  or  commitments  to issue
securities exercisable for or convertible into, capital stock of the Company, or
other commitments to issue any capital stock of the Company.

               3.8 No  Dividends.  The  Company  has not  declared  or paid  any
                   -------------
dividends, or authorized or made any distribution or established any record date
for the issuance of any dividend or other  distribution  upon or with respect to
any class or series of its  capital  stock and will not do any of the  foregoing
until  after  Purchasers  have  been  listed  as record  holders  of the  Shares
purchased at the Closing.

               3.9 Litigation.  Except as disclosed in the SEC Documents,  there
                   ----------
are no actions, suits,  proceedings or investigations pending or, to the best of


                                        3

<PAGE>


                                                             Page 32 of 50 Pages

the Company's knowledge, threatened against the Company or any of its properties
before  or by any  court or  arbitrator  or any  governmental  body,  agency  or
official  in which  there is a  reasonable  likelihood  (in the  judgment of the
Company) of an adverse decision that (a) could have a material adverse effect on
the  Company's  properties or assets or the business of the Company as presently
conducted  or proposed to be  conducted  or (b) could  impair the ability of the
Company to perform in any material respect its obligations under this Agreement.

               3.10 Real Property  Holding  Corporation.  The Company is not and
                    ----------------------------------- 
will not  voluntarily  become a real  property  holding  corporation  within the
meaning  of  Internal  Revenue  Code  Section   897(c)(2)  and  any  regulations
promulgated thereunder.

               3.11 Regulation S Representations.
                    ---------------------------- 

               (a)  Neither the Company  nor any of its  affiliates  (within the
meaning of Rule 144 under the  Securities  Act) nor any person  acting on its or
their  behalf has  engaged or will  engage in any  Directed  Selling  Efforts in
connection with the offer and sale of the Shares.

               (b)  The  Company is a  Reporting  Issuer  within the  meaning of
Regulation S.

               (c)  The Company has not offered the Shares to any persons  other
than the Purchasers.

               (d)  The offer and sale of the Shares to the  Purchasers  are not
part of a plan or  scheme  on the  part of the  Company,  any of its  affiliates
(within the meaning of Rule 144 under the  Securities  Act) or any person acting
on its or their behalf to evade the  registration  provisions of the  Securities
Act.

               3.12  Amendment  to  Rights  Agreement.  The First  Amendment  to
                     --------------------------------
Restated  Investors'  Rights  Agreement  (the  "Rights  Amendment")  in the form
attached hereto as Exhibit B. has been executed by the persons and entities that
                   --------- 
are required to effectively amend the Restated Investors' Rights Agreement dated
June 11, 1996 among the  Company  and the persons  listed in Schedule A attached
                                                             ----------
thereto (the "Rights Agreement"),  and the Rights Amendment constitutes a legal,
valid and binding obligation of the Company.

                                    Section 4

           Representations, Warranties and Covenants of the Purchasers
           -----------------------------------------------------------

               Each Purchaser  hereby  severally  represents and warrants to the
Company as of the Closing Date, and agrees in favor of the Company,  as follows,
except  that  Duquesne  Fund,  L.P.  ("Duquesne")  does  not  make  any  of  the
representations or warranties contained in Section 4.5(a), (b) or (f):

               4.1  Authorization.  Purchaser  represents  and  warrants  to the
                    -------------
Company that: (i) Purchaser has been duly formed and is validly existing in good


                                        4

<PAGE>


                                                             Page 33 of 50 Pages

standing under the laws of the jurisdiction of its formation; (ii) Purchaser has
all requisite  legal and corporate or other power and capacity and has taken all
requisite  corporate or other action to execute and deliver this  Agreement,  to
purchase  the Shares to be  purchased  by it and to carry out and perform all of
its obligations under this Agreement;  and (iii) this Agreement  constitutes the
legal, valid and binding obligation of the Purchaser,  enforceable in accordance
with its terms,  except (a) as limited  by  applicable  bankruptcy,  insolvency,
reorganization,  or similar laws  relating to or affecting  the  enforcement  of
creditors'  rights  generally  and  (b)  as  limited  by  equitable   principles
generally.

               4.2 Independent  Investment Decision.  Purchaser understands that
                   --------------------------------
no United  States  federal or state  agency has passed on,  reviewed or made any
recommendation  or endorsement of the Shares. In making the decision to purchase
the Shares in accordance with this  Agreement,  Purchaser has relied solely upon
independent  investigations made by it and not upon any representations  made by
the Company other than those made pursuant to this Agreement.

               4.3 Investment Intent. Purchaser is purchasing the Shares for its
                   -----------------
own account, for investment purposes only, and not with a view to a distribution
thereof.  Purchaser  further  understands that its acquisition of the Shares has
not been  registered  under the Securities Act or registered or qualified  under
any state  securities law in reliance on specific  exemptions  therefrom,  which
exemptions  may  depend  upon,  among  other  things,  the bona  fide  nature of
Purchaser's  investment intent as expressed  herein.  Duquesne is an "accredited
investor"  as such term is  defined  in Rule  501(a) of  Regulation  D under the
Securities  Act, and has such knowledge and experience in financial and business
matters that it is capable of evaluating  the merits and risks of the investment
in the Shares to be made by it hereunder.

               4.4  Registration or Exemption  Requirements.  Purchaser  further
                    ---------------------------------------
acknowledges  and understands that the Shares have not been registered under the
Securities  Act and may not be  resold  or  otherwise  transferred  except  in a
transaction registered under the Securities Act or unless an exemption from such
registration is available.

               4.5 Regulation S Representations.
                   ----------------------------

               (a)  Purchaser  is not a U.S.  Person  and is not  acquiring  the
Shares for the account or benefit of any U.S.  Person,  and  Purchaser is not an
affiliate  (within  the  meaning  of Rule 144 under the  Securities  Act) of the
Company.

               (b)  At the time the buy orders for the Shares  were  originated,
Purchaser was located outside the United States.

               (c)  Neither  Purchaser  nor  any of its  affiliates  nor  anyone
acting on its or their behalf has engaged or will engage in any Directed Selling
Efforts in connection with the offer and sale of the Shares.


                                        5

<PAGE>


                                                             Page 34 of 50 Pages

               (d)  Purchaser:

               will not, prior to the later of the end of the Restricted  Period
and November 1, 1997, offer or sell any of the Shares (or create or maintain any
derivative  position  equivalent  thereto) in reliance on  Regulation S and will
only  offer or sell any of the  Shares (or  create or  maintain  any  derivative
position  equivalent  thereto) during such period pursuant to registration under
the Securities Act or pursuant to an available exemption from registration other
than  Regulation  S and,  in any  case,  in  accordance  with  applicable  state
securities laws and the provisions of this Agreement;  and will,  after November
1, 1997, offer or sell the Shares (or create or maintain any derivative position
equivalent  thereto)  only in  accordance  with the  provisions of Regulation S,
pursuant to  registration  under the Securities Act, or pursuant to an available
exemption  from  registration  and, in any case, in accordance  with  applicable
state  securities laws and the provisions of this Agreement.  Purchaser  further
agrees  that  unless  the  transfer  is  pursuant  to a  registration  under the
Securities  Act,  prior to the transfer (A) Purchaser will notify the Company of
the proposed transfer and will furnish the Company with a detailed  statement of
the  circumstances  surrounding  the proposed  transfer,  and (B) if  reasonably
requested by the Company,  Purchaser will furnish the Company with an opinion of
counsel,  reasonably  satisfactory  to the  Company and its  counsel,  that such
transfer will not require  registration  of the Shares under the Securities Act.
Purchaser agrees to provide an opinion of counsel for all transfers  pursuant to
Regulation S.

               (e)  Neither  Purchaser's offer to buy the Shares nor Purchaser's
acquisition  of the Shares is part of a plan or scheme on the part of Purchaser,
any of its  affiliates  or any person acting on its or their behalf to evade the
registration requirements of the Securities Act.

               (f)  Purchaser's  offer  to  buy  the  Shares  constituted,   and
Purchaser's acquisition of the Shares will constitute, an Offshore Transaction.

               (g)  In addition to, and without in any way  limiting,  the other
restrictions   contained  in  this  Agreement,   during  any  Restricted  Period
applicable to the Shares,  neither  Purchaser nor any of its  affiliates nor any
person acting on its or their behalf will engage in any Directed Selling Efforts
with respect to such Shares.

               4.6 No Legal,  Tax or Investment  Advice.  Purchaser  understands
                   ------------------------------------
that nothing in this Agreement or any other materials  presented to Purchaser in
connection with the purchase and sale of the Shares  constitutes  legal,  tax or
investment  advice.  Purchaser  has  consulted  such legal,  tax and  investment
advisors as it, in its sole  discretion,  has deemed necessary or appropriate in
connection with its purchase of the Shares.

               4.7 Legends. To the extent applicable,  each certificate or other
                   -------
document  evidencing  any of the Shares  shall be endorsed  with the legends set
forth in  Sections  4.7(a) and (b) below  (other  than the Shares  purchased  by
Duquesne,  which shall be endorsed with the legends set forth in Sections 4.7(b)
and (c) below),  and the  Purchaser  covenants  that,  except to the extent such


                                        6

<PAGE>


                                                             Page 35 of 50 Pages

restrictions  are waived by the Company,  the  Purchaser  shall not transfer the
shares   represented  by  any  such  certificate   without  complying  with  the
restrictions on transfer described in the legends endorsed on such certificate:


               "THE  SECURITIES  REPRESENTED BY THIS  CERTIFICATE  HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES  ACT"),
AND HAVE BEEN SOLD IN RELIANCE ON THE EXEMPTION  FROM  REGISTRATION  PROVIDED BY
REGULATION S UNDER THE  SECURITIES  ACT  ("REGULATION  S"). PRIOR TO NOVEMBER 1,
1997, THE SECURITIES REPRESENTED BY THIS CERTIFICATE MAY NOT BE OFFERED OR SOLD,
DIRECTLY OR INDIRECTLY, EXCEPT PURSUANT TO REGISTRATION UNDER THE SECURITIES ACT
OR PURSUANT TO AN AVAILABLE EXEMPTION FROM REGISTRATION OTHER THAN REGULATION S.
AFTER NOVEMBER 1, 1997, THE SECURITIES  REPRESENTED BY THIS  CERTIFICATE MAY NOT
BE  OFFERED OR SOLD,  DIRECTLY  OR  INDIRECTLY,  EXCEPT IN  ACCORDANCE  WITH THE
PROVISIONS OF REGULATION S, PURSUANT TO  REGISTRATION  UNDER THE SECURITIES ACT,
OR PURSUANT TO AN AVAILABLE EXEMPTION FROM REGISTRATION."

               "THE SHARES REPRESENTED HEREBY ARE SUBJECT TO THE RESTRICTIONS ON
TRANSFER CONTAINED IN A CERTAIN COMMON STOCK PURCHASE AGREEMENT, AS AMENDED FROM
TIME TO TIME.  THE  COMPANY  WILL UPON  WRITTEN  REQUEST  FURNISH A COPY OF SUCH
AGREEMENT TO THE HOLDER HEREOF WITHOUT CHARGE."

               "THE SHARES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE
SECURITIES  ACT OF 1933,  AS  AMENDED  (THE  "SECURITIES  ACT"),  AND MAY NOT BE
OFFERED OR SOLD ABSENT AN EFFECTIVE  REGISTRATION  THEREOF UNDER THE  SECURITIES
ACT OR COMPLIANCE WITH RULE 144 PROMULGATED  UNDER THE SECURITIES ACT OR ANOTHER
AVAILABLE EXEMPTION THEREFROM,  OR UNLESS THE COMPANY HAS RECEIVED AN OPINION OF
COUNSEL,  REASONABLY  SATISFACTORY  TO THE  COMPANY AND ITS  COUNSEL,  THAT SUCH
REGISTRATION IS NOT REQUIRED."

               (d)  Any other legend required by law.

               4.8 HSR Filings. No filing under the Hart-Scott-Rodino  Antitrust
                   -----------
Improvements  Act of 1976,  as  amended,  is or will be  required  by any of the
Purchasers in connection with the acquisition of the Shares by the Purchasers.

                                        7

<PAGE>


                                                             Page 36 of 50 Pages

                                    Section 5

                       Conditions to Closing of Purchasers
                       -----------------------------------

               Each Purchaser's obligation to purchase the Shares at the Closing
is, at the option of such  Purchaser,  subject to the  fulfillment or waiver (in
its sole discretion) on or before the Closing Date of the following conditions:

               5.1  Representations  and  Warranties.  The  representations  and
                    --------------------------------
warranties of the Company  contained in Section 3 shall be true on and as of the
Closing with the same effect as though such  representations  and warranties had
been made on and as of the date of such Closing.

               5.2 Covenants. The Company shall have performed and complied with
                   ---------
all agreements,  obligations and conditions contained in this Agreement that are
required to be performed or complied with by it on or before the Closing.

               5.3 Qualifications. All authorizations, approvals, or permits, if
                   -------------- 
any, of any governmental authority or regulatory body of the United States or of
any state that are  required  as of the  Closing in  connection  with the lawful
issuance and sale of the Shares  pursuant to this Agreement shall have been duly
obtained and shall be effective as of the Closing.

               5.4  Amendment to Rights  Agreement.  The Company and the persons
                    ------------------------------
whose  signatures are required to effectively  amend the Rights  Agreement shall
have executed the First Amendment to Restated Investors' Rights Agreement in the
form attached hereto as Exhibit B.

                                    Section 6

                        Conditions to Closing of Company
                        --------------------------------

               The  Company's  obligation  to sell and issue  the  Shares at the
Closing is, at the option of the Company,  subject to the  fulfillment or waiver
of the following conditions:

               6.1  Representations  and  Warranties.  The  representations  and
                    --------------------------------
warranties of the  Purchasers  contained in Section 4 shall be true on and as of
the Closing with the same effect as though such  representations  and warranties
had been made on and as of the date of such Closing.

               6.2 Covenants.  The Purchasers  shall have performed and complied
                   ---------
with all agreements, obligations and conditions contained in this Agreement that
are required to be performed or complied with by the Purchasers on or before the
Closing.

               6.3 Qualifications. All authorizations, approvals, or permits, if
                   -------------- 
any, of any governmental authority or regulatory body of the United States or of


                                        8

<PAGE>


                                                             Page 37 of 50 Pages

any state that are  required  as of the  Closing in  connection  with the lawful
issuance and sale of the Shares  pursuant to this Agreement shall have been duly
obtained and shall be effective as of the Closing.

               6.4 Amendment to Rights Agreement. The Purchasers and the persons
                   -----------------------------
whose  signatures are required to effectively  amend the Rights  Agreement shall
have executed the First Amendment to Restated Investors' Rights Agreement in the
form attached hereto as Exhibit B.

                                    Section 7

                      Affirmative Covenants of the Company
                      ------------------------------------

               The Company hereby covenants and agrees as follows:

               7.1  Financial  Information.  The Company will mail the following
                    ----------------------
reports to each Purchaser until such Purchaser  transfers,  assigns or sells the
Shares purchased by such Purchaser pursuant to this Agreement:

               (a)  Within one  hundred  (100) days after the end of each fiscal
year, a copy of its Annual Report on Form 10-K.

               (b)  Within  fifty-five  (55) days  after  the end of the  first,
second  and  third  quarterly  accounting  periods  of each  fiscal  year of the
Company, a copy of its Quarterly Report on Form 10-Q.

               (c)  Within ten (10) days  after the  Company  files any  Current
Report on Form 8-K with the SEC, such Current Report on Form 8-K.

               7.2 Registration Requirements.
                   ------------------------- 

               (a)  As soon as practicable after the Company becomes eligible to
file a registration  statement on Form S-3 registering the resale of the Shares,
or,  in the  event  that the  Company  is not  eligible  to file a  registration
statement on Form S-3  registering the resale of the Shares by November 1, 1997,
then on a subsequent  date as soon as practicable  after the Purchasers  holding
more than fifty  percent  (50%) of the Shares  then  outstanding  may request in
writing,  the Company shall prepare and file a  registration  statement with the
SEC under the  Securities  Act to  register  the resale of the  Shares  (and the
additional  789,500 shares of the Company's  Common Stock held by the Purchasers
as of the date hereof) by the Purchasers (the "Registration  Statement") and use
its best efforts to cause such registration  statement to be declared effective.
All Purchasers shall deliver to the Company an executed copy of the Registration
Statement  Questionnaire in the form attached hereto as Exhibit C as a condition
precedent to the Company's  obligation to file the  Registration  Statement with
the SEC and in any event within ten (10) days of the Company's request therefor.
Each  Purchaser  will  promptly  notify  the  Company  of  any  changes  in  the
information set forth in the Registration  Statement regarding such Purchaser or
such Purchaser's "Plan of Distribution."

                                        9

<PAGE>


                                                             Page 38 of 50 Pages


               (b)  The Company shall pay all Registration  Expenses (as defined
below)  in  connection  with  any  registration,   qualification  or  compliance
hereunder,  and each Purchaser shall pay all Selling Expenses (as defined below)
and other  expenses that are not  Registration  Expenses  relating to the Shares
resold by such  Purchaser.  "Registration  Expenses"  shall  mean all  expenses,
except for  Selling  Expenses,  incurred by the  Company in  complying  with the
registration  provisions herein described,  including,  without limitation,  all
registration,  qualification and filing fees,  printing  expenses,  escrow fees,
fees and  disbursements  of counsel for the Company,  blue sky fees and expenses
and the  expense of any  special  audits  incident  to or  required  by any such
registration.   "Selling   Expenses"   shall  mean  all   selling   commissions,
underwriting discounts and stock transfer taxes applicable to the Shares and all
fees and disbursements of counsel for any Purchaser.

               (c)  In the  case of the  registration  effected  by the  Company
pursuant to these registration provisions, the Company will use its best efforts
to: (i) keep such registration effective until the earliest of (A) nineteen (19)
months after the initial  effective date of the  Registration  Statement,  which
date shall be extended  by the period  (not to exceed five (5) months)  equal to
the  period,  if any,  that the  Purchasers  are  unable to sell any Shares as a
result of any withdrawal of the  Registration  Statement by the Company pursuant
to Section  7.2(f) below  (other than a withdrawal  in response to any Notice of
Sale (as defined in Section 7.2(f) below) that  indicates any Purchaser  desires
to sell no more than 50,000 Shares)(the  "Effective Period"),  and (B) such date
as all of the Shares have been resold in  transactions  in which the  Purchasers
have not assigned their benefits and  obligations  under Section 7 in accordance
with the  provisions  of Section 8.5 below;  (ii)  prepare and file with the SEC
such amendments and supplements to the Registration Statement and the prospectus
used in connection with the Registration Statement as may be necessary to comply
with the provisions of the Securities Act with respect to the disposition of all
securities covered by the Registration  Statement;  (iii) furnish such number of
prospectuses and other documents incident thereto, including any amendment of or
supplement to the  prospectus,  as a Purchaser  from time to time may reasonably
request;  (iv) cause all Shares  registered as described  herein to be listed on
each securities  exchange and quoted on each quotation  service on which similar
securities  issued by the  Company  are then  listed or  quoted;  (v)  provide a
transfer  agent  and  registrar  for  all  Shares  registered  pursuant  to  the
Registration Statement and a CUSIP number for all such Shares; and (vi) file the
documents required of the Company and otherwise use its best efforts to maintain
requisite blue sky clearance in (A) all jurisdictions in which any of the Shares
are  originally  sold  and  (B) all  other  states  specified  in  writing  by a
Purchaser,  provided as to clause (B),  however,  that the Company  shall not be
required to qualify to do  business  or to file a general  consent to service of
process  in any  state  in  which  it is  not  now so  qualified  or has  not so
consented.

               (d)  The Company shall furnish to each  Purchaser  upon request a
reasonable  number  of  copies  of a  supplement  to or  an  amendment  of  such
prospectus as may be necessary in order to  facilitate  the public sale or other
disposition of all or any of the Shares held by the Purchaser.


                                       10

<PAGE>


                                                             Page 39 of 50 Pages

               (e)  With a view  to  making  available  to  the  Purchasers  the
benefits of Rule 144  promulgated  under the Securities Act ("Rule 144") and any
other rule or  regulation  of the SEC that may at any time permit a Purchaser to
sell Shares to the public without  registration or pursuant to the  Registration
Statement,  the  Company  covenants  and  agrees  to:  (i) make and keep  public
information  available,  as those terms are  understood and defined in Rule 144,
until the earlier of (A) the end of the Effective Period or (B) such date as all
of the Shares have been resold in  transactions in which the Purchasers have not
assigned their benefits and  obligations  under Section 7 in accordance with the
provisions  of Section 8.5 below;  (ii) file with the SEC in a timely manner all
reports and other documents required of the Company under the Securities Act and
Exchange Act; and (iii) furnish to any  Purchaser  upon request,  as long as the
Purchaser  owns any Shares,  (A) a written  statement by the Company that it has
complied with the reporting  requirements of the Securities Act and the Exchange
Act, (B) a copy of the most recent  annual or  quarterly  report of the Company,
and (C) such other information as may be reasonably  requested in order to avail
any  Purchaser of any rule or  regulation of the SEC that permits the selling of
any such Shares without registration or pursuant to the Registration Statement.

               (f)  In the event any Purchaser  desires to sell the  Purchaser's
Shares  pursuant to the  Registration  Statement,  the Purchaser  shall give the
Company three (3) business days' notice (which notice, if given orally,  will be
confirmed in writing  within 24 hours) of its desire to sell in reliance on such
Registration  Statement  including  an estimate of whether its desire is to sell
more than 50,000 Shares (the "Notice of Sale"). The Company may refuse to permit
a  Purchaser  to resell  any  Shares  pursuant  to the  Registration  Statement;
provided,  however,  that in order to  exercise  this right,  the  Company  must
deliver a certificate in writing to the Purchaser within three (3) business days
following  the  Company's  receipt  of the  Notice  of Sale to the  effect  that
withdrawal of such  Registration  Statement is necessary because a sale pursuant
to the  Registration  Statement  in its  then-current  form could  constitute  a
violation of the federal  securities  laws. In such an event,  the Company shall
use its best efforts to amend the Registration Statement if necessary as soon as
practicable and in any event within sixty (60) days after the Company's  receipt
of the Notice of Sale,  and shall notify the  Purchasers  promptly  after it has
determined that such sale has become  permissible  under the federal  securities
laws.   Notwithstanding   the  foregoing,   the  Company  shall  not  under  any
circumstances  be entitled to exercise  its right to refuse to permit the resale
of any Shares pursuant to the Registration  Statement more than two (2) times in
any twelve (12) month period, except that the Company's exercise of its right to
refuse to permit the resale of any Shares pursuant to the Registration Statement
in response to any Notice of Sale that  indicates the Purchaser  desires to sell
no more than 50,000  Shares shall not count toward its limit of two (2) refusals
in any twelve  (12) month  period.  The period  during  which such  Registration
Statement  may be  withdrawn  shall not exceed sixty (60) days.  Each  Purchaser
hereby  covenants  and agrees  that it will not sell any Shares  pursuant to the
Registration   Statement  during  the  periods  the  Registration  Statement  is
withdrawn as set forth in this Section 7.2(f).

                                       11

<PAGE>


                                                             Page 40 of 50 Pages

               7.3 Indemnification and Contribution.
                   -------------------------------- 

               (a)  The  Company  agrees to  indemnify  and hold  harmless  each
Purchaser  and its  affiliates  (within  the  meaning  of  Rule  144  under  the
Securities Act) from and against any losses,  claims, damages or liabilities (or
actions or  proceedings  in respect  thereof)  to which they may become  subject
(under the Securities Act or otherwise) insofar as such losses,  claims, damages
or liabilities  (or actions or proceedings in respect  thereof) arise out of, or
are based upon,  (x) any untrue  statement of a material  fact  contained in the
Registration Statement, on the effective date thereof, including any preliminary
prospectus  or  final  prospectus   contained   therein  or  any  amendments  or
supplements  thereto,  (y) the omission or alleged  omission to state  therein a
material fact required to be stated therein, or necessary to make the statements
therein not misleading, or (z) any violation or alleged violation by the Company
of the Securities  Act, the Exchange Act, or any rule or regulation  promulgated
under the Securities Act or the Exchange Act, or arise out of any failure by the
Company to fulfill any undertaking included in the Registration  Statement,  and
the Company will, as incurred,  reimburse  such Purchaser for any legal or other
expenses reasonably incurred in investigating,  defending or preparing to defend
any such loss,  claim,  damage or liability  (or action or proceeding in respect
thereof);  provided,  however,  that the Company shall not be liable in any such
case to the extent  that such loss,  claim,  damage or  liability  (or action or
proceeding  in  respect  thereof)  arises out of, or is based upon (i) an untrue
statement made in such Registration Statement in reliance upon and in conformity
with  written  information  furnished  to the  Company  by or on  behalf of such
Purchaser  specifically  for use in preparation of the  Registration  Statement,
including any preliminary  prospectus or final prospectus  contained  therein or
any  amendments or  supplements  thereto,  (ii) the failure of such Purchaser to
comply with the covenants  and  agreements  contained in Section 7.3 hereof,  or
(iii) any untrue statement in any Prospectus that is corrected in any subsequent
Prospectus  that was delivered to the Purchaser  prior to the pertinent  sale or
sales by the Purchaser.

               (b)  Each  Purchaser,   severally  and  not  jointly,  agrees  to
indemnify and hold harmless the Company and its  affiliates  (within the meaning
of Rule 144 under the  Securities  Act) from and  against  any  losses,  claims,
damages or liabilities  (or actions or proceedings in respect  thereof) to which
the Company may become subject  (under the Securities Act or otherwise)  insofar
as such losses,  claims,  damages or  liabilities  (or actions or proceedings in
respect thereof) arise out of, or are based upon (i) an untrue statement made in
such  Registration  Statement in reliance  upon and in  conformity  with written
information  furnished  to  the  Company  by  or on  behalf  of  such  Purchaser
specifically for use in preparation of the Registration Statement, including any
preliminary  prospectus or final prospectus  contained therein or any amendments
or supplements thereto, provided,  however, that no Purchaser shall be liable in
any  such  case  for any  untrue  statement  included  in any  Prospectus  which
statement has been corrected, in writing, by such Purchaser and delivered to the
Company before the sale from which such loss occurred,  (ii) the failure of such
Purchaser to comply with the covenants and  agreements  contained in Section 7.3
hereof, or (iii) any untrue statement in any Prospectus that is corrected in any
subsequent Prospectus that was delivered to the Purchaser prior to the pertinent
sale or sales by the Purchaser,  and each Purchaser,  severally and not jointly,


                                       12


<PAGE>


                                                             Page 41 of 50 Pages


will,  as  incurred,  reimburse  the  Company  for any  legal or other  expenses
reasonably incurred in investigating,  defending or preparing to defend any such
loss,  claim,  damage or liability (or action or proceeding in respect thereof);
provided, however, that no Purchaser shall be liable for any amount in excess of
the amount by which the net amount  received by the  Purchaser  from the sale of
the Shares to which such loss  relates  exceeds the amount of any damages  which
such  Purchaser has  otherwise  been required to pay by reason of such untrue or
alleged untrue statement or omission or alleged omission.

               (c)  Promptly after receipt by any indemnified person of a notice
of a claim or the beginning of any action in respect of which indemnity is to be
sought  against an  indemnifying  person  pursuant  to this  Section  7.3,  such
indemnified person shall notify the indemnifying person in writing of such claim
or  of  the  commencement  of  such  action,  and,  subject  to  the  provisions
hereinafter  stated,  in case  any  such  action  shall be  brought  against  an
indemnified person and the indemnifying person shall have been notified thereof,
the indemnifying  person shall be entitled to participate  therein,  and, to the
extent  that it  shall  wish,  to  assume  the  defense  thereof,  with  counsel
reasonably  satisfactory  to the  indemnified  person.  After  notice  from  the
indemnifying  person to such  indemnified  person of the  indemnifying  person's
election to assume the defense  thereof,  the  indemnifying  person shall not be
liable to such indemnified person for any legal expenses  subsequently  incurred
by such  indemnified  person in connection with the defense  thereof;  provided,
however,  that if there exists or shall exist a conflict of interest  that would
make it inappropriate in the reasonable  judgment of the indemnified  person for
the same counsel to represent both the indemnified  person and such indemnifying
person or any affiliate or associate  thereof,  the indemnified  person shall be
entitled to retain its own counsel at the expense of such indemnifying person.

               (d)  If the  indemnification  provided for in this Section 7.3 is
unavailable  to or  insufficient  to hold  harmless an  indemnified  party under
subsection  (a) or (b)  above in  respect  of any  losses,  claims,  damages  or
liabilities (or actions or proceedings in respect thereof)  referred to therein,
then each  indemnifying  party shall contribute to the amount paid or payable by
such  indemnified  party  as  a  result  of  such  losses,  claims,  damages  or
liabilities (or actions in respect thereof) in such proportion as is appropriate
to reflect the relative  fault of the Company on the one hand and the Purchasers
on the other in connection  with the  statements or omissions  which resulted in
such losses,  claims, damages or liabilities (or actions in respect thereof), as
well as any other relevant equitable considerations. The relative fault shall be
determined by reference  to, among other  things,  whether the untrue or alleged
untrue statement of a material fact or the omission or alleged omission to state
a material fact relates to  information  supplied by the Company on the one hand
or a Purchaser on the other and the parties' relative intent, knowledge,  access
to information and opportunity to correct or prevent such statement or omission.
The Company and the Purchasers  agree that it would not be just and equitable if
contribution  pursuant  to this  subsection  (d)  were  determined  by pro  rata
allocation  (even if the Purchasers were treated as one entity for such purpose)
or by any  other  method  of  allocation  which  does  not take  account  of the
equitable  considerations  referred to above in this  subsection (d). The amount
paid or  payable  by an  indemnified  party as a result of the  losses,  claims,
damages,  or liabilities  (or actions in respect  thereof)  referred to above in
this  subsection  (d)  shall be deemed to  include  any legal or other  expenses
reasonably  incurred by such indemnified party in connection with  investigating


                                       13

<PAGE>


                                                             Page 42 of 50 Pages

or defending any such action or claim.  Notwithstanding  the  provisions of this
subsection  (d), no  Purchaser  shall be required  to  contribute  any amount in
excess of the amount by which the net amount  received by the Purchaser from the
sale of the Shares to which such loss relates  exceeds the amount of any damages
which such Purchaser has otherwise been required to pay by reason of such untrue
or alleged untrue statement or omission or alleged omission. No person guilty of
fraudulent  misrepresentation  (within  the  meaning  of  Section  11(f)  of the
Securities  Act) shall be entitled to  contribution  from any person who was not
guilty of such fraudulent misrepresentation. The Purchasers' obligations in this
subsection (d) to contribute are several in proportion to their respective sales
of Shares to which such loss relates and not joint.

               (e)  The obligations of the Company and the Purchasers under this
Section  7.3 shall be in  addition  to any  liability  which the Company and the
respective  Purchasers may otherwise have and shall extend,  upon the same terms
and  conditions,  to each  person,  if any,  who  controls  the  Company  or any
Purchaser within the meaning of the Act.

               7.4 Nomination  for Election to Company Board of Directors.  Upon
                   ------------------------------------------------------
the request of the record holders of more than fifty percent (50%) of the Shares
then  outstanding and held by Purchasers (the "Majority  Holders"),  the Company
shall use its best efforts to cause its Board of Directors to nominate and elect
or have elected after June 24, 1997, an individual  designated in writing by the
Majority  Holders,  which  individual must also be acceptable to the Chairman of
the Company's Board of Directors,  to serve on the Company's Board of Directors;
provided,  however,  that the Company's  obligation pursuant to this Section 7.4
shall terminate on the earlier of (i) the second anniversary of the Closing Date
and (ii) the date when the aggregate  number of shares of the  Company's  Common
Stock held by the  Purchasers is less than ten percent (10%) of the total number
of outstanding shares of the Company's Common Stock.

               7.5 Public  Statements.  Neither the  Company nor the  Purchasers
                   ------------------ 
shall  use the name of the  other in any press  release  or filing  with the SEC
(excluding Schedule 13Ds and Forms 3, 4 and 5) without the prior approval of the
other  party,  which  approval  may not be  unreasonably  withheld  or  delayed;
provided, however, that to the extent such prior approval is impracticable,  the
- --------  -------
party  issuing the press release or making the filing with the SEC shall provide
a copy of such press  release or SEC filing to the other  party as  promptly  as
practicable thereafter; and provided,  further, that if the other party does not
                            --------   ------- 
approve such press release or SEC filing, the party issuing the press release or
making the filing  with the SEC may still use the name of the other party in any
press  release or SEC filing  without  the prior  written  approval of the other
party,  if the party issuing the press release or making the filing with the SEC
is advised by counsel that such disclosure is required to comply with applicable
law.

                                       14


<PAGE>


                                                             Page 43 of 50 Pages

                                    Section 8

                                  Miscellaneous
                                  -------------

               8.1  Waivers  and  Amendments.  With the  exception  of Section 7
                    ------------------------
hereof,  the terms of this  Agreement  may be waived or amended with the written
consent of the Company  and each  Purchaser.  With  respect to Section 7 hereof,
with the  written  consent of the  Company  and the record  holders of more than
fifty percent (50%) of the Shares then  outstanding and held by Purchasers,  the
terms of  Section 7 of this  Agreement  may be waived  or  amended  and any such
amendment or waiver shall be binding upon the Company and all holders of Shares.

               8.2 Placement  Agent's Fee. Each Purchaser  acknowledges that the
                   ----------------------
Company intends to pay to George  McFadden or an entity  designated by him a fee
of  $500,000 in respect of the sale of the  Shares.  Each of the parties  hereto
hereby  represents that, on the basis of any actions and agreements by it, there
are no other brokers or finders  entitled to compensation in connection with the
sale of the Shares to the Purchasers.

               8.3  Governing  Law.  This  Agreement  shall be  governed  in all
                    --------------
respects by and construed in  accordance  with the laws of the State of Delaware
without any regard to conflicts of laws principles.

               8.4  Survival.  The  representations,  warranties,  covenants and
                    --------
agreements  made in this Agreement shall survive any  investigation  made by the
Company or the Purchasers and the Closing.

               8.5 Successors and Assigns.  The provisions hereof shall inure to
                   ----------------------
the benefit of, and be binding upon, the successors,  assigns,  heirs, executors
and  administrators  of the  parties  to  this  Agreement.  Notwithstanding  the
foregoing,  no Purchaser  shall assign this Agreement  without the prior written
consent of the Company, which consent may be withheld by the Company in its sole
discretion for any or no reason;  provided, that the benefits and obligations of
any Purchaser  under  Section 7 may be  transferred  by a Purchaser  without the
prior written consent of the Company to any person that acquires at least 51% of
the Shares acquired by such Purchaser at the Closing,  so long as the transferee
agrees in writing to be bound by the  provisions of Section 7 to the same extent
as the Purchaser from whom it acquired the Shares.

               8.6 Entire  Agreement.  This Agreement  constitutes  the full and
                   ----------------- 
entire  understanding  and  agreement  between  the  parties  with regard to the
subjects hereof.

               8.7 Notices,  etc. All notices and other communications  required
                   -------------
or permitted  under this  Agreement  shall be in writing and may be delivered in
person,  by  facsimile,  overnight  delivery  service or registered or certified
United States mail, addressed to the Company or the Purchasers,  as the case may
be, at their  respective  addresses set forth at the beginning of this Agreement
or on Exhibit A, and in the case of all notices and other  communications to the
      ---------
Purchasers,  a copy will be delivered to Soros Fund  Management LLC, 888 Seventh


                                       15

<PAGE>


                                                             Page 44 of 50 Pages

Avenue,  Suite 3300, New York, New York 10106, Attn: Sean Warren, (212) 541-7751
(fax),  or at such other  address as the  Company or the  Purchasers  shall have
furnished  to the other party in writing.  All notices and other  communications
shall be effective upon the earlier of actual  receipt  thereof by the person to
whom notice is directed or (i) in the case of notices and communications sent by
personal  delivery  or  facsimile,   one  business  day  after  such  notice  or
communication  arrives at the applicable address or was successfully sent to the
applicable facsimile number, (ii) in the case of notices and communications sent
by overnight  delivery service,  at noon (local time) on the second business day
following the day such notice or  communication  was sent, and (iii) in the case
of notices and communications  sent by United States mail, seven days after such
notice or communication shall have been deposited in the United States mail.

               8.8  Severability  of this  Agreement.  If any  provision of this
                    --------------------------------
Agreement   shall  be   judicially   determined   to  be  invalid,   illegal  or
unenforceable,  the  validity,  legality  and  enforceability  of the  remaining
provisions shall not in any way be affected or impaired thereby.

               8.9 Counterparts. This Agreement may be executed in any number of
                   ------------
counterparts,  each of which  shall be an  original,  but all of which  together
shall constitute one instrument.

               8.10 Further  Assurances.  Each party to this Agreement shall use
                    -------------------
its best efforts to cause the Closing to occur and shall do and perform or cause
to be done and  performed all such further acts and things and shall execute and
deliver all such other  agreements,  certificates,  instruments and documents as
the other party hereto may  reasonably  request in order to carry out the intent
and  accomplish  the  purposes of this  Agreement  and the  consummation  of the
transactions contemplated hereby.

               8.11 Expenses.  The Company shall bear its own expenses  incurred
                    -------
on its behalf with respect to the execution of this Agreement and the Closing of
the transactions  contemplated hereby,  including fees of its legal counsel, and
will,  promptly after receipt of an invoice  therefor,  reimburse the reasonable
fees and costs of one special  counsel for the Purchasers up to a maximum amount
of $15,000. 

               8.12  Currency.  All  references  to  "dollars"  or "$"  in  this
                     --------
Agreement shall be deemed to refer to United States dollars.


                                       16

<PAGE>


                                                             Page 45 of 50 Pages


               8.13  Attorneys'  Fees.  If any  action  at law or in  equity  is
                     ----------------
necessary to enforce or interpret the terms of this  Agreement,  the  prevailing
party shall be entitled  to  reasonable  attorneys'  fees,  costs and  necessary
disbursements  in  addition  to any  other  relief  to which  such  party may be
entitled.

               The foregoing  agreement is hereby  executed as of the date first
above written.

                                   "COMPANY"

                                   TRIANGLE PHARMACEUTICALS, INC.,
                                   a Delaware corporation


                                   By:  /S/ DAVID W. BARRY
                                        ---------------------------------------
                                   Title:Chairman and Chief Executive Officer


                                   "PURCHASERS"

                                   QUANTUM PARTNERS LDC,
                                   a Cayman Islands limited duration company


                                   By:  /S/ SEAN C. WARREN
                                        ---------------------------------------
                                   Title:    Attorney-in-Fact


                                   QUANTUM INDUSTRIAL PARTNERS LDC, 
                                   a Cayman Islands limited duration company


                                   By:  /S/ SEAN C. WARREN
                                        ---------------------------------------
                                   Title:    Attorney-in-Fact


                                   DUQUESNE FUND, L.P.

                                   By:  Duquesne Capital Management, L.L.C., 
                                        its investment advisor


                                        By:  /S/ GERLAD KERNER
                                             ----------------------------------
                                             Gerald Kerner, Managing Director

                                       17


                                                             Page 46 of 50 Pages

                                    EXHIBIT G

             FIRST AMENDMENT TO RESTATED INVESTORS' RIGHTS AGREEMENT


               This First Amendment to Restated Investors' Rights Agreement (the
"Amendment")  is made as of this ____ day of June,  1997, by and among  Triangle
Pharmaceuticals,  Inc., a Delaware  corporation (the  "Company"),  the investors
executing  this  Amendment on the signature  pages hereto under the heading "The
Investors,"  and the investors  executing this Amendment on the signature  pages
hereto under the heading "The New  Investors"  (the "Soros  Funds"),  and amends
certain portions of the Restated Investors' Rights Agreement dated June 11, 1996
(the "Agreement"),  among the Company and the individuals and entities listed on
Schedule A to the Agreement (the "Existing  Investors").  Capitalized  terms not
- ----------
otherwise defined herein will have the meanings given to them in the Agreement.

                                    RECITALS

               WHEREAS,  the  Company  desires  to sell and  issue to the  Soros
Funds, and the Soros Funds desire to purchase from the Company, 2,000,000 shares
of the  Company's  Common  Stock (the  "Shares")  pursuant  to the Common  Stock
Purchase Agreement dated of even date herewith (the "Stock Purchase Agreement"),
the form of which is attached hereto as Exhibit A.
                                        --------- 

               WHEREAS,  the  Existing  Investors  desire for the Soros Funds to
purchase the Shares and, as a condition  thereof and to induce such  investment,
the Existing  Investors  are willing to enter into this  Amendment to permit the
Soros Funds to become parties to certain  sections of the Agreement,  as amended
by this Amendment (the "Amended Agreement").

               WHEREAS,  the  Existing  Investors  are  holders of a  sufficient
number of Registrable Securities to effectively amend the Agreement.

               NOW, THEREFORE, for good and valuable consideration,  the receipt
and  adequacy  of which are hereby  acknowledged,  the parties  hereto  agree as
follows:

               1.   Amendments to Agreement.  The Agreement is hereby amended as
                    -----------------------
follows:

                    1.1  Section  1.1(f).  Section  1.1(f) is hereby amended and
                         ---------------
restated in its entirety  to read as follows:



                    "(f) The term "Registrable  Securities" means (i) the Common
          Stock  issuable  or issued upon  conversion  of the Series A Preferred
          Stock, (ii) the Common Stock issuable or issued upon conversion of the
          Series B Preferred  Stock,  (iii) the 2,000,000 shares of Common Stock
          purchased by the Soros Funds on June ___,  1997 (the "Soros  Shares"),
          and (iv) any Common Stock of the Company  issued as (or issuable  upon
          the  conversion  or exercise of any warrant,  right or other  security
          which is issued as) a dividend or other  distribution with respect to,
          or in exchange for or in replacement of the shares  referenced in (i),
          (ii) or (iii) above;  excluding in all cases, however, any Registrable
          Securities  sold by a person or entity in a  transaction  in which its
          rights under this Section 1 are not assigned;  and provided,  however,
                                                             --------   ------- 
          that notwithstanding anything herein to the contrary, the Soros Shares
          and any  shares of Common  Stock  referenced  in (iv)  above  that are
          issued in  respect  of any  Soros  Shares  shall  not be  "Registrable
          Securities"  for purposes of Sections 1.2, 1.6, 1.11, 1.12 (only as it
          relates to the right of the Holders to request that the Company effect
          a registration on Form S-3) or 1.14."



<PAGE>


                                                             Page 47 of 50 Pages

               1.2  Section  1.1(g).   Section  1.1(g)  is  hereby  amended  and
                    ---------------
restated in its entirety to read as follows:

                    "(g) The number of shares of  "Registrable  Securities  then
          outstanding"  means the number of shares of Common  Stock  outstanding
          which are, and the number of shares of Common Stock issuable  pursuant
          to then exercisable or convertible  securities which are,  Registrable
          Securities for purposes of the Section of this  Agreement  pursuant to
          which such calculation is made."

               1.3  Section 1.1(i).  A new section 1.1(i) is hereby added to the
                    --------------
Agreement as  follows:

                    "(i) The term "Soros  Funds"  shall mean the  entities  that
          acquired the Soros Shares  pursuant to a certain Common Stock Purchase
          Agreement dated as of June ___, 1997."

               1.4 Section  3.7.  Section 3.7 is hereby  amended and restated in
                   ------------
its entirety to read as follows:

                    "3.7 Amendments and Waivers.  Any term of this Agreement may
                         ----------------------
          be amended and the  observance  of any term of this  Agreement  may be
          waived  (either  generally  or in a  particular  instance  and  either
          retroactively or prospectively),  only with the written consent of the
          Company and the holders of a majority  of the  Registrable  Securities
          then outstanding for purposes of the Section of the Agreement to which
          the amendment or waiver  relates.  Any amendment or waiver effected in
          accordance  with this  paragraph  shall be binding upon each holder of
          any Registrable Securities then outstanding, each future holder of all
          such Registrable Securities, and the Company."

               1.5 Schedule A. Schedule A to the Agreement is hereby amended and
                   ----------  ----------
restated in its entirety with Schedule A attached to this Amendment.
                              ----------

                                        2

<PAGE>


                                                             Page 48 of 50 Pages

               2. Consent and Waiver.  Pursuant to Sections  1.14 and 3.7 of the
                  ------------------
Agreement,  each  Existing  Investor,  on behalf of itself  and all of the other
Existing  Investors  under the Agreement,  hereby (a) consents to (i) adding the
Soros Funds as parties to the Amended Agreement,  (ii) granting the registration
rights  to the  Soros  Funds as set  forth in the  Amended  Agreement  and (iii)
granting  the  registration  rights to the Soros Funds as set forth in the Stock
Purchase Agreement  (including  preparing,  filing and having declared effective
the  registration  statement  contemplated  thereby  at  the  time  contemplated
thereby),  and (b) waives any rights the Existing  Investors  may have under the
Agreement or  otherwise  to cause the Company to register any of the  Investors'
Registrable  Securities as part of the  registration  of the resale of the Soros
Shares  in  accordance  with the  provisions  of the Stock  Purchase  Agreement.
Notwithstanding  Section  3.7 of the Amended  Agreement,  the consent and waiver
contained in this Section 2 may not be amended,  modified or restricted  without
the written consent of each Purchaser.

               3. Effect of Amendment; Conflicts. Except as specifically amended
                  ------------------------------
by this Amendment, the Agreement shall continue in full force and effect. In the
event of any conflict  between the terms of the  Agreement and the terms of this
Amendment, the terms of this Amendment shall govern and control.

               4. Counterparts.  This Amendment may be executed in any number of
                  ------------
counterparts,  each of  which  will be  deemed  an  original,  and all of  which
together shall constitute one instrument.






                [REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]


                                        3

<PAGE>


                                                             Page 49 of 50 Pages

               IN WITNESS  WHEREOF,  this Amendment is hereby executed as of the
date first above written.

                                   THE COMPANY:

                                   TRIANGLE PHARMACEUTICALS, INC., 
                                   a Delaware corporation


                                   By:  /S/ DAVID W. BARRY
                                        ---------------------------------------
                                   Its: Chairman and Chief Executive Officer
                                        ---------------------------------------


                                   THE NEW INVESTORS:

                                   QUANTUM PARTNERS LDC, 
                                   a Cayman Islands limited duration company


                                   By:  /S/ SEAN C. WARREN
                                        ---------------------------------------
                                   Title: Attorney-in-Fact
                                        ---------------------------------------


                                   QUANTUM INDUSTRIAL PARTNERS LDC, 
                                   a Cayman Islands limited duration company


                                   By:  /S/ SEAN C. WARREN
                                        ---------------------------------------
                                   Title: Attorney-in-Fact
                                        ---------------------------------------


                                   DUQUESNE FUND, L.P.

                                   By:  Duquesne Capital Management, L.L.C., 
                                        its investment advisor


                                        By:  /S/ GERALD KERNER
                                             ----------------------------------
                                             Gerald Kerner, Managing Director



                      [SIGNATURE PAGE TO FIRST AMENDMENT TO
                      RESTATED INVESTORS' RIGHTS AGREEMENT]

                                        4

<PAGE>


                                                             Page 50 of 50 Pages



                                   THE INVESTORS:


                                   By:  /S/ [EACH INVESTOR]
                                        ---------------------------------------
                                   Its:
                                        ---------------------------------------







                      [SIGNATURE PAGE TO FIRST AMENDMENT TO
                      RESTATED INVESTORS' RIGHTS AGREEMENT]

                                        5


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission