Claims for Patent: 8,461,333

Summary for Patent: 8,461,333

Title:	Salts of prodrugs of piperazine and substituted piperidine antiviral agents
Abstract:	This invention provides for prodrug Compounds I, pharmaceutical compositions thereof, and their use in treating HIV infection. wherein: X is C or N with the proviso that when X is N, R1 does not exist; W is C or N with the proviso that when W is N, R2 does not exist; V is C; E is hydrogen or a pharmaceutically acceptable salt thereof; and Y is selected from the group consisting of Also, this invention provides for intermediate Compounds II useful in making prodrug Compounds I. wherein: L and M are independently selected from the group consisting of C1-C6 alkyl, phenyl, benzyl, trialkylsilyl, -2,2,2-trichloroethoxy and 2-trimethylsilylethoxy.
Inventor(s):	Yasutsugu Ueda, Timothy P. Connolly, John F. Kadow, Nicholas A. Meanwell, Tao Wang, Chung-Pin H. Chen, Kap-Sun Yeung, Zhongxing Zhang, David Kenneth Leahy, Shawn K. Pack, Nachimuthu Soundararajan, Pierre Sirard, Kathia Levesque, Dominique Thoraval
Assignee:	ViiV Healthcare UK No 4 Ltd
Application Number:	US13/429,838
Patent Claims:	1. A pharmaceutically acceptable salt of the compound 1-benzoyl-4-[2-[4-methoxy-7-(3-methyl-1H-1,2,4-triazol-1-yl)-1-[(phosphonooxy)methyl]-1H-pyrrolo[2,3-c]pyridin-3-yl]-1,2-dioxoethyl]-piperazine, having the following structure: 2. The pharmaceutically acceptable salt of claim 1, wherein said salt is a mono tromethamine (TRIS) salt.