US 9,242,986 B2
Synthesis of carbamoylpyridone HIV integrase inhibitors and intermediatesGeneral
US 9,242,986 B2
Synthesis of carbamoylpyridone HIV integrase inhibitors and intermediates
Tech Center:
1600 Biotechnology and Organic Chemistry
Examiner:
Kahsay Habte
Art Unit:
1624 Organic Chemistry
Inventors:
Takashi KAWASUJI; Daiki NAGAMATSU
Assignee:
Priority:
12/11/08
Filed:
05/08/14
Granted:
01/26/16
Expiration:
12/11/28
Abstract
A synthesis approach providing an early ring attachment via a bromination to compound 1-1 yielding compound II-II, whereby a final product such as AA can be synthesized. In particular, the 2,4-difluorophenyl-containing sidechain is attached before creation of the additional ring Q.
Cooperative Patent Classification (CPC)
A61A61P43/00A61K31/4412A61PC07D213/803C07DY02P20/55Y02P