申请人:Santen Pharmaceutical Co., Ltd.
公开号:US06329547B1
公开(公告)日:2001-12-11
The present invention provides compounds represented by the following general formula [I] and salts thereof, which are useful as therapeutic agents for glaucoma,
wherein R1 is H, lower alkyl or phenyl, and the phenyl can be substituted by lower alkyl, hydroxy, lower alkoxy, halogen, nitro or phenyl; R2 and R3, being the same or different, are H, halogen or lower alkyl; R4 and R5, being the same or different, are H, lower alkyl or carboxyl or ester thereof; and R6 is carboxyl or phosphono or ester thereof.
本发明提供了以下一般式I及其盐所代表的化合物,这些化合物可用作青光眼的治疗剂,
其中R1为H、较低的烷基或苯基,苯基可由较低的烷基、羟基、较低的烷氧基、卤素、硝基或苯基取代;R2和R3,相同或不同,为H、卤素或较低的烷基;R4和R5,相同或不同,为H、较低的烷基或羧基或其酯;R6为羧基或磷酸酯或其酯。