申请人:Pfizer Inc.
公开号:US05260309A1
公开(公告)日:1993-11-09
The present invention relates to compounds of the formula ##STR1## wherein the broken line represents a saturated or an olefinic bond, R.sup.1 and R.sup.4 are each hydrogen or C.sub.1 to C.sub.6 alkyl, and R.sup.2 and R.sup.3 are each hydrogen, C.sub.1 to C.sub.6 alkyl, halogen, C.sub.1 to C.sub.6 alkoxy or C.sub.1 to C.sub.6 alkylthio, and pharmaceutically acceptable salts thereof, pharmaceutical compounds containing the same, methods of preparing the foregoing compounds, and to novel intermediates in the preparation of the foregoing compounds. These compounds are useful as agents in the prevention of neuronal damage in the brain following cerebral ischemia and during the progression of Alzheimer's disease and also as anticonvulsants.
本发明涉及式子##STR1##的化合物,其中断线表示饱和或烯烃键,R.sup.1和R.sup.4分别是氢或C.sub.1到C.sub.6烷基,R.sup.2和R.sup.3分别是氢,C.sub.1到C.sub.6烷基,卤素,C.sub.1到C.sub.6烷氧基或C.sub.1到C.sub.6烷基硫醚,以及其药学上可接受的盐,含有这些化合物的制药化合物,制备上述化合物的方法,以及制备上述化合物的新中间体。这些化合物可用作在脑缺血后预防神经元损伤以及在阿尔茨海默病进展期间和抗癫痫药物的代理。