申请人:HOECHST-ROUSSEL
PHARMACEUTICALS INCORPORATED
公开号:EP0471296A1
公开(公告)日:1992-02-19
This invention relates to compounds of the formula
wherein
R₁is hydrogen, loweralkyl, arylloweralkyl, loweralkenyl or loweralkynyl;
R₂is hydrogen, lowralkyl, loweralkenyl, formyl or cyano;
Xis hydrogen, halogen, nitro, amino, loweralkyl, loweralkoxy or hydroxy;
Yis hydrogen, loweralkyl, loweralkoxy, arylloweralkoxy, hydroxy, halogen, nitro or amino;
the pharmaceutically acceptable acid addition salts thereof, and, where applicable, the geometric and optical isomers and racemic mixtures thereof. The compounds of the invention are useful for the treatment of various memory dysfunctions characterized by a decreased cholinergic function, such as Alzheimer's disease.
本发明涉及式如下的化合物
式中
R₁是
氢、低级烷基、芳基低级烷基、低级
烯基或低级炔基;
R₂ 是
氢、低级烷基、低级
烯基、甲酰基或
氰基;
X是
氢、卤素、硝基、
氨基、低级烷基、低级烷
氧基或羟基;
Y 是
氢、低级烷基、低级烷
氧基、芳基低级烷
氧基、羟基、卤素、硝基或
氨基;
其药学上可接受的酸加成盐,以及(如适用)其几何异构体、光学异构体和外消旋混合物。本发明的化合物可用于治疗以
胆碱能功能下降为特征的各种记忆功能障碍,如阿尔茨海默病。