申请人:Sankyo Company Limited
公开号:EP0266922A1
公开(公告)日:1988-05-11
Compounds of formula (I):
in which:
Ar represents a phenyl group having at least one substituent selected from nitro, C1 -C4 haloalkyl, C1 -C4 haloalkoxy and cyano groups and halogen atoms;
R represents a C1 -C16 alkyl group, a C3 -C6 cycloalkyl group, a C1 -C4 alkyl group having a C3 -C6 cycloalkyl substituent, a C2 -C4 alkenyl group, a cinnamyl group or a C1 -C16 alkyl group having at least one substituent selected from hydroxy, C1 -C4 alkoxy and C1 -C4 alkylthio groups;
R1 represents a hydrogen atom or a C1-C3 alkyl group;
R2a and R2b are the same or different and each represents an unsubstituted phenyl group or a substituted phenyl group having at least one substituent selected from C1 -C4 alkyl, C1 -C4 alkoxy and C1 -C4 haloalkyl groups and halogen atoms;
one of R3 and R4 represents a methyl group and the other represents an amino group; and
n is an integer from 1 to 3;
These compounds have a variety of valuable activities, including antihypertensive and Ca++-blocking activities, leading to their use for the treatment of circulatory and coronary disorders. They may be prepared by condensation of appropriate substituted benzylideneacetoacetic acid esters with appropriate amidinoacetic acid esters.
式(I)化合物:
其中
Ar 代表苯基,其至少一个取代基选自硝基、C1 -C4 卤代烷基、C1 -C4 卤代烷氧基、氰基和卤素原子;
R 代表 C1 -C16 烷基、C3 -C6 环烷基、具有 C3 -C6 环烷基取代基的 C1 -C4 烷基、C2 -C4 烯基、肉桂基或具有至少一个选自羟基、C1 -C4 烷氧基和 C1 -C4 烷硫基的取代基的 C1 -C16 烷基;
R1 代表氢原子或 C1-C3 烷基;
R2a 和 R2b 相同或不同,各自代表未取代的苯基或至少具有一个选自 C1-C4 烷基、C1-C4 烷氧基、C1-C4 卤代烷基和卤素原子的取代基的取代苯基;
R3 和 R4 中的一个代表甲基,另一个代表氨基;以及
n 是 1 到 3 的整数;
这些化合物具有多种有价值的活性,包括抗高血压和 Ca++ 阻断活性,因此可用于治疗循环系统和冠状动脉疾病。这些化合物可通过适当的取代亚苄基乙酰乙酸酯与适当的脒基乙酸酯缩合制备。