申请人:SANKYO COMPANY, LIMITED
公开号:US20040248981A1
公开(公告)日:2004-12-09
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:
1
wherein R
1
represents a hydrogen atom, a halogen atom, an alkyl group or a hydroxyl group; R
2
represents a hydrogen atom, a halogen atom or an alkyl group, R
3
represents a hydrogen atom, an optionally substituted alkyl group, an aralkyl group, an optionally substituted alkanoyl group or an optionally substituted alkylsulfonyl group, R
4
and R
5
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 R
6
represents a substituted pyrrolidine group or substituted piperidine group.
公式(I)中的苯甲酰胺衍生物或其药学上可接受的盐表现出优异的抑制因子Xa的活性,可用于治疗或预防血液凝固障碍:其中R1代表氢原子,卤原子,烷基或羟基;R2代表氢原子,卤原子或烷基,R3代表氢原子,可选取代的烷基,芳基烷基,可选取代的烷酰基或可选取代的烷基磺酰基,R4和R5相同或不同,每个代表氢原子,卤原子,可选取代的烷基,烷氧基,羧基,烷氧羰基或可选取代的氨基甲酰基,而R6代表取代的吡咯烷基或取代的哌嗪烷基。