Piperazine derivative, processes for preparing the same and therapeutic compositions containing it
申请人:Tanabe Seiyaku Co., Ltd.
公开号:EP0034284A2
公开(公告)日:1981-08-26
A piperazine derivative of the formula:
wherein R1 is hydrogen, alkyl (C1-8), alkyl (C1-4)-sulfonyl or an acyl group of the formula: R3CO- (wherein R' is hydrogen, alkyl (C1-7), halogenoalkyl (C1-4), alkoxy (C1-4)-carbonyl- alkyl(C1-4), cycloalkyl (C3-6), alkenyl (C2-5), alkoxy(C1-4), amino, alkyl (C1-4)-amino or anilino), R2 is hydrogen, alkyl (C1-4), alkoxy (C1-4)-carbonyl-alkyl(C1-4), carboxy-alkyl (C1-4), alkenyl (C2-5) or alkyl (Cl-4)-sulfonyl, or R1 and R2 are combined together to form succinyl group, Ring A is phenyl, alkyl (C1- 4)-phenyl or halogenophenyl, and n is an integer of2 2 to 6, or a pharmaceutically acceptable acid addition salt thereof. The piperazine derivative (l) has an intracranial pressure-lowering activity. Said derivative also has a depressing effect on central nervous system.
式中的哌嗪衍生物
其中 R1 是氢、烷基(C1-8)、烷基(C1-4)-磺酰基或式中的酰基:R3CO-(其中 R'是氢、烷基(C1-7)、卤代烷基(C1-4)、烷氧基(C1-4)-羰基-烷基(C1-4)、环烷基(C3-6)、烯基(C2-5)、烷氧基(C1-4)、氨基、烷基(C1-4)-氨基或苯胺基),R2 是氢、烷基(C1-4)、烷氧基(C1-4)-羰基-烷基(C1-4)、羧基-烷基(C1-4)、烯基(C2-5)或烷基(Cl-4)-磺酰基,或 R1 和 R2 结合在一起形成琥珀酰基,环 A 是苯基、烷基(C1-4)-苯基或卤素苯基,n 是 2 2 至 6 的整数,或其药学上可接受的酸加成盐。哌嗪衍生物(l)具有降低颅内压的活性。上述衍生物还具有抑制中枢神经系统的作用。