[EN] 5-THIAZOLE SUBSTITUTED 2-PYRROLIDINE-CARBOXYLIC ACIDS<br/>[FR] ACIDES 2-PYRROLIDINE-CARBOXYLIQUES A SUBSTITUTION 5-THIAZOLE
申请人:GLAXO GROUP LTD
公开号:WO2004060889A1
公开(公告)日:2004-07-22
Anti-viral agents of Formula (1a) wherein: RA represents hydroxy; RB represents 4-tert-butylbenzoyl further substituted in the meta-position by halo or C1-3alkoxy; RC represents 2-thiazolyl, 5-methylthiazol-2-yl, or 4-thiazolyl; RD represents methyl; X represents isobutyl; and salts, solvates and esters thereof; provided that when RA is esterified to form -OR where R is selected from straight or branched chain alkyl, arakyl, aryloxyalkyl, or aryl, then R is other than tert-butyl; processes for their preparation and their use in HCV treatment are provided.