申请人:TAISHO PHARMACEUTICAL CO. LTD
公开号:EP0365364A2
公开(公告)日:1990-04-25
2-Azetizinone derivatives, useful as blood platelet aggregation inhibiting agents, are those of the formula:
in which R1 is a halogen atom a C1-C4 alkyl group, a C1-C4 alkoxy group or an alkoxycarbonyl group in which the alkoxy group is a C1-C4 alkoxy group; R2 is a group of the formula:
(in which R3 and R4 are the same or different and each is a hydrogen atom, a C1-C5 alkenyl group, a phenyl group or a benzyl group), a group of the formula:
(in which R5 is a hydrogen atom, a phenyl group substituted by a halogen atom or a C1-C4 alkoxy group, a phenyl group, a C1-C4 alkyl group or a pyridyl group), a group of the formula:
(in which R6 is a hydrogen atom, a Ci-C4 alkyl group or a benzyl group and R7 is a hydrogen atom or a C1-C4 alkyl group), a group of the formula:
(in which R8 and R9 are the same or different and each is a hydrogen atom or C1-C4 alkyl group), a pyrrolidinyl group or a tetrahydroazepinyl group; and n is an integer of from 2 to 10; and salts thereof.
可用作血小板聚集抑制剂的 2-氮杂环丁酮衍生物是式中的衍生物:
其中 R1 是卤素原子、C1-C4 烷基、C1-C4 烷氧基或烷氧基羰基,其中烷氧基是 C1-C4 烷氧基;R2 是式中的一个基团:
(其中 R3 和 R4 相同或不同,且各自为氢原子、C1-C5 烯基、苯基或苄基)、式中的基团:
(其中 R5 为氢原子、被卤素原子或 C1-C4 烷氧基取代的苯基、苯基、C1-C4 烷基或吡啶基)、式中的一个基团:
(其中 R6 为氢原子、Ci-C4 烷基或苄基,R7 为氢原子或 C1-C4 烷基)、式中的一个基团:
(其中 R8 和 R9 相同或不同,且各自为氢原子或 C1-C4 烷基)、吡咯烷基团或四氢氮杂卓基团;以及 n 为 2 至 10 的整数;及其盐类。