Pyrazole derivatives and their pharmaceutical use as smooth muscle cell growth inhibitors
申请人:JAPAN ENERGY CORPORATION
公开号:EP0810217A1
公开(公告)日:1997-12-03
The present invention relates to a pyrazole derivative represented by formula ( I ) or (II) :
wherein R1 is hydrogen C2-C6 alkyl, benzyl or phenyl;
each of R2 and R3 is hydrogen, C1-C6 alkyl or benzyl;
each of R4 and R5 is hydrogen, C1-C6 alkyl, C3-C6 alkenyl, C3-C8 cycloalkyl, benzyl or phenyl;
X is oxygen or sulfur;
R5 is hydrogen, C2-C6 alkyl, C3-C6 alkenyl, C3-C8 cycloalkyl or benzyl when R1 is benzyl, R2 is ethyl, R3 is hydrogen, and R4 is hydrogen, and its pharmaceutical use.
本发明涉及一种由式(I)或(II)表示的吡唑衍生物:
其中 R1 是氢 C2-C6 烷基、苄基或苯基;
R2 和 R3 各为氢、C1-C6 烷基或苄基
R4 和 R5 各为氢、C1-C6 烷基、C3-C6 烯基、C3-C8 环烷基、苄基或苯基;
X 是氧或硫;
当 R1 是苄基、R2 是乙基、R3 是氢和 R4 是氢时,R5 是氢、C2-C6 烷基、C3-C6 烯基、C3-C8 环烷基或苄基,及其制药用途。