UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date:
November 21, 2008 12:00 P.M.
Form:
S-4
CIK:
0000356830
Company Name:
OSCIENT PHARMACEUTICALS CORP
File Number:
333-153394
CIK:
0001443593
Company Name:
Guardian II Acquisition CORP
File Number:
333-153394-01