申请人:Takeda Chemical Industries, Ltd.
公开号:EP0368670A1
公开(公告)日:1990-05-16
Novel trisubstituted piperazine compounds of the formula (I):
wherein A is an optionally substituted phenyl group, an optionally substituted condensed polycyclic hydrocarbon group, an optionally substituted hetero-cyclic group or a styryl group of the formula:
Ar - CR4 = CRS - wherein Ar is an optionally substituted phenyl group, and R4 and R5 are independently hydrogen or a lower alkyl group, X is methylene group, carbonyl group or thiocarbonyl group, G is a group of the formula:
(CH2)nZ-R6 wherein n is an integer of 0 to 2, Z is a chemical bond, 0, S, SO, S02, CO, COO, CONR7 or NR7 (wherein R7 is hydrogen, a lower alkyl group, a lower haloalkyl group, a lower alkenyl group or a lower alkoxycarbonyl group), and R6 is hydrogen, a lower alkyl group, a lower haloalkyl group or a lower alkenyl group, provided that, when n is 0 and Z is chemical bond, R6 is not hydrogen or a lower alkyl group, and R1, R2 and R3 are independently a lower alkyl group, and salts thereof, are useful as a platelet activating factor antagonist.
公式(I)的新型三取代哌嗪类化合物:
其中A为可选取代的苯基、可选取代的紧缩多环碳氢基、可选取代的杂环基或式Ar-CR4=CRS-的苯乙烯基,其中Ar为可选取代的苯基,R4和R5独立地为氢或较低的烷基,X为亚甲基、羰基或硫代羰基,G为式(CH2)nZ-R6的基团,其中n为0到2之间的整数,Z为化学键、0、S、SO、SO2、CO、COO、CONR7或NR7(其中R7为氢、较低的烷基、较低的卤代烷基、较低的烯基或较低的烷氧羰基基团),R6为氢、较低的烷基、较低的卤代烷基或较低的烯基,但当n为0且Z为化学键时,R6不为氢或较低的烷基,且R1、R2和R3独立地为较低的烷基。此外,该化合物及其盐可用作血小板活化因子拮抗剂。