2-CARBOXY THIOPHENE DERIVATIVES AS ANTI VIRAL AGENTS
申请人:Grimes Richard Martin
公开号:US20090274655A1
公开(公告)日:2009-11-05
Anti-viral agents of compounds of Formula (I): wherein A, R
1
, R
2
and R
3
are as defined in the specification, processes for their preparation and their use in HCV treatment are provided.