Benzopyran compounds, processes for their production and pharmaceutical compositions
申请人:Kaken Pharmaceutical Co., Ltd.
公开号:EP0412531A1
公开(公告)日:1991-02-13
A compound of the formula (I):
or a pharmaceutically acceptable salt thereof, wherein:
R1 is a hydrogen atom, a substituted or unsubstituted C1-6 alkyl group, a C2-6 alkenyl group, a C2-6 alkynyl group or a R7-CO- group (wherein R7 is a C1-6 alkyl group, a phenyl group, a C2-6 alkenyl group which may be substituted by a phenyl group, or a C1-6 alkoxy group);
R2 is a hydrogen atom, a substituted or unsubstituted C1 -8 alkyl group, or a phenyl group;
R3 is a hydrogen atom, and R4 is a hydroxyl group, or R3 and R4 together form a bond; each of R5 and R6 is a C1-4 alkyl group; and
Y is a cyano group, a halogen atom, a nitro group, a C1-6 alkyl group, a C2-6 alkynyl group, a C1-6 alkylcarbonyl group, a C1-6 alkoxy group, a di-C1-6 alkylaminocarbonyl group, an aryl group, a C1-6 alkoxycarbonyl group, a carboxyl group or a morpholinocarbonyl group.
式(I)化合物
或其药学上可接受的盐,其中
R1 是氢原子、取代或未取代的 C1-6 烷基、C2-6 烯基、C2-6 炔基或 R7-CO- 基团(其中 R7 是 C1-6 烷基、苯基、可被苯基取代的 C2-6 烯基或 C1-6 烷氧基);
R2 是氢原子、取代或未取代的 C1 -8 烷基或苯基;
R3 是氢原子,R4 是羟基,或 R3 和 R4 共同形成一个键;R5 和 R6 各是一个 C1-4 烷基;以及
Y 是氰基、卤素原子、硝基、C1-6 烷基、C2-6 炔基、C1-6 烷基羰基、C1-6 烷氧基、二-C1-6 烷氨基羰基、芳基、C1-6 烷氧基羰基、羧基或吗啉羰基。