申请人:Sankyo Company, Limited
公开号:US06555556B1
公开(公告)日:2003-04-29
Benzamidine derivatives of formula (I) or pharmaceutically acceptable salts thereof exhibit excellent inhibitory activity against factor Xa and are useful for treating or preventing blood coagulation disorders:
wherein R1 represents a hydrogen atom, a halogen atom, an alkyl group or a hydroxyl group; R2 represents a hydrogen atom, a halogen atom or an alkyl group, R3 represents a hydrogen atom, an optionally substituted alkyl group, an aralkyl group, an optionally substituted alkanoyl group or an optionally substituted alkylsulfonyl group, R4 and R5 are the same as or different from each other and each represent a hydrogen atom, a halogen atom, an optionally substituted alkyl group, an alkoxy group, a carboxyl group, an alkoxycarbonyl group or an optionally substituted carbamoyl group, and R6 represents a substituted pyrrolidine group or substituted piperidine group.
Benzamidine衍生物的化学式(I)或其药学上可接受的盐对Xa因子表现出优异的抑制活性,并且可用于治疗或预防血液凝固紊乱:其中R1代表氢原子、卤素原子、烷基或羟基;R2代表氢原子、卤素原子或烷基,R3代表氢原子、可选择取代的烷基、芳基烷基、可选择取代的烷酰基或可选择取代的烷基磺酰基,R4和R5彼此相同或不同,各自代表氢原子、卤素原子、可选择取代的烷基、烷氧基、羧基、烷氧羰基或可选择取代的氨基羰基,R6代表取代的吡咯烷基或取代的哌啶基。