FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * DellaCamera Capital Management, LLC   2. Issuer Name and Ticker or Trading Symbol OSCIENT PHARMACEUTICALS CORP [OSCI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 461 FIFTH AVENUE, 10TH FLOOR 3. Date of Earliest Transaction (Month/Day/Year) 05/13/2009 (Street) NEW YORK, NY 10017 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 05/13/2009   S   416,391 D $ 0.2509 576,392 D (1) (2) (3)   Common Stock 05/13/2009   S   108,162 D $ 0.2304 468,230 D (1) (2) (3)   Common Stock 05/14/2009   S   468,230 D $ 0.2096 0 D (1) (2) (3)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

12.50% Convertible Guaranteed Senior Notes due 2011

$ 1.1 (4)

05/13/2009

S

$ 500,000

(5)

(5)

Common Stock

454,545 (4)

$ 20

$ 4,500,291

D (1) (2) (3)

12.50% Convertible Guaranteed Senior Notes due 2011

$ 1.1 (4)

05/14/2009

S

$ 500,000

(5)

(5)

Common Stock

454,545 (4)

$ 20

$ 4,000,291

D (1) (2) (3)

12.50% Convertible Guaranteed Senior Notes due 2011

$ 1.1 (4)

05/14/2009

S

$ 1,000,000

(5)

(5)

Common Stock

909,090 (4)

$ 19

$ 3,000,291

D (1) (2) (3)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
DellaCamera Capital Management, LLC 461 FIFTH AVENUE 10TH FLOOR NEW YORK, NY 10017		X

Signatures

Vincent Spinnato, Managing Member		05/15/2009
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Reflects the securities of the issuer owned directly by DellaCamera Capital Master Fund, Ltd. (the "Master Fund").
(2)	DellaCamera Capital Management, LLC ("DCM") acts as the investment manager of the Master Fund. DellaCamera Capital Fund, Ltd. (the "Offshore Fund") is the controlling shareholder of the Master Fund. Ralph DellaCamera, Jr., Andrew Kurtz and Vincent Spinnato are the controlling persons of DCM (collectively, Messrs. DellaCamera, Kurtz and Spinnato shall be referred to as the "Controlling Persons").
(3)	DCM, the Offshore Fund and each Controlling Person may each be deemed to indirectly beneficially own the securities reported herein held by the Master Fund. For purposes of this Form 4, DCM, the Offshore Fund and each Controlling Person each disclaims ownership of the securities reported herein owned by the Master Fund, except to the extent of their pecuniary interest therein.
(4)	The initial conversion rate of the issuer's 12.50% Convertible Guaranteed Senior Notes due 2011 (the "Notes") is 909.0909 shares per $1,000 principal amount of Notes (equal to a conversion price of approximately $1.10 per share).
(5)	The Notes are immediately convertible into shares of common stock. These Notes mature on January 15, 2011, unless earlier converted or repurchased.

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