A Disubstituted piperidine compounds of formula (I), wherein R.sub.1 is hydrogen; bromo; chloro; a linear or branched C.sub.1 -C.sub.5 alkyl group; a linear or branched C.sub.1 -C.sub.5 alkoxy group; or an optionally substituted phenyl group; R.sub.2 is hydrogen, a linear or branched C.sub.1 -C.sub.5 alkyl group or an optionally substituted phenyl group; X is CH.sub.2, C.dbd.O, CHOH or C.dbd.NOH; R.sub.3 is hydrogen or a linear or branched C.sub.1 -C.sub.5 alkyl group; Y is a (CH.sub.2).sub.n group in which n is an integer from 0 to 4, CHOH, C.dbd.O or CH-A wherein A is an optionally substituted phenyl group; A is an optionally substituted phenyl group; W is hydrogen or hydroxy; stereoisomers thereof and their pharmaceutically acceptable salts. The compounds possess selective neuroprotective activity and are useful in the treatment of an acute or a degenerative CNS disease. A process is described for preparing the compounds and pharmaceutical compositions containing them.
一种公式为(I)的二取代
哌啶化合物,其中R.sub.1为氢;
溴;
氯; 线性或支链C.sub.1-C.sub.5烷基; 线性或支链C.sub.1-C.sub.5烷氧基; 或者是可选取代的苯基; R.sub.2为氢,线性或支链C.sub.1-C.sub.5烷基或可选取代的苯基; X为CH.sub.2,C.dbd.O,CHOH或C.dbd.NOH; R.sub.3为氢或线性或支链C.sub.1-C.sub.5烷基; Y为(CH.sub.2).sub.n基团,其中n是0到4的整数,CHOH,C.dbd.O或CH-A,其中A是可选取代的苯基; A是可选取代的苯基; W为氢或羟基; 其立体异构体及其药学上可接受的盐。该化合物具有选择性神经保护活性,可用于治疗急性或退行性中枢神经系统疾病。描述了制备该化合物和含有它们的制药组合物的过程。