Disubstituted N,N'-piperazinyl derivatives are disclosed wherein one substituent is heteroaryl and the other is alkylene attached to the ring nitrogen of substituted 2,5-pyrrolidinedion-1-yl moieties. The substitution pattern of the pyrrolidinedione ring involves either geminal disubstitution, including spiro ring fusion, or 3,4-phenyl ring fusion to give phthalimide derivatives. Heteroaryl substitution on the other piperazine nitrogen comprises pyridine, pyrimidine, and benzisothiazole ring systems. Representative examples of these compounds demonstrate useful central nervous system effects.
二取代N,N'-
哌嗪衍
生物被披露,其中一个取代基是杂环烷基,另一个是连接到取代的2,5-
吡咯烷二酮-1-基团的环氮的烷基。
吡咯烷二酮环的取代模式涉及伽美烷二取代,包括螺环融合,或3,4-苯环融合以给出邻苯二
酰亚胺衍
生物。另一个
哌嗪氮上的杂环烷基取代包括
吡啶,
嘧啶和苯并
异噻唑环系统。这些化合物的代表性示例展示了有用的中枢神经系统效应。