申请人:——
公开号:US05071859A1
公开(公告)日:1991-12-10
Novel N-substituted azaheterocyclic carboxylic acids and esters thereof in which an ether group forms part of the N-substituent, the compounds thus having the general formula I ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and each represents phenyl, 2-thienyl or 3-thienyl, 2-pyrrolyl or 3-pyrrolyl, substituted with one or more substituents selected among the following atoms or groups: hydrogen, halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy or cyano; R.sup.3 and R.sup.4 each represents hydrogen or together represent a bond; m is 1 or 2 and n is 1 when m is 1 and n is 0 when m is 2; R.sup.5 and R.sup.6 each represents hydrogen or may--when m is 2--together represent a bond, and R.sup.7 is OH or C.sub.1 -C.sub.8 -alkoxy, p is 0 or 1 or 2, q is 0 or 1 or 2, R.sup.8 is H and C.sub.1 -C.sub.4 -alkyl, are potent inhibitors of GABA uptake from the synaptic cleft.
新型N-取代的氮杂环羧酸及其酯,在其中醚基形成N-取代基的一部分,因此这些化合物具有一般式I,其中R.sup.1和R.sup.2相同或不同,分别代表苯基、2-噻吩基或3-噻吩基、2-吡咯基或3-吡咯基,取代有氢、卤素、C.sub.1-C.sub.6-烷基、C.sub.1-C.sub.6-烷氧基或氰基等基团中的一个或多个基团;R.sup.3和R.sup.4各自代表氢或共同代表键;m为1或2,n为1时m为1,n为0时m为2;R.sup.5和R.sup.6各自代表氢或者当m为2时可能共同代表键;R.sup.7为OH或C.sub.1-C.sub.8-烷氧基,p为0或1或2,q为0或1或2,R.sup.8为H和C.sub.1-C.sub.4-烷基,是GABA从突触间隙中的摄取的有效抑制剂。