申请人:SMITHKLINE BECKMAN CORPORATION
公开号:EP0066456A1
公开(公告)日:1982-12-08
-Substituted azaheterocyclic carboxylic acids and their esters, of the formula:-
wherein:
n is a positive whole integer 2, 3 or 4;
m is zero;
R4 is hydrogen, or lower alkyl of from 1 to 4 carbon atoms;
the dotted line represents an optional bond;
R5 is hydrogen, or hydroxy, or when the dotted line forms a double bond, hydrogen;
B is
wherein R, is hydrogen, fluorine, chlorine, methyl or methoxy;
Y is -C(A)=C(R3)- -CH
-CHR3- in which case n is 3 or 4, or -C=C-, wherein R2 is hydrogen, fluorine, chlorine, methyl or methoxy, R3 is hydrogen or methyl, and A is
2-thienyl, 3-thienyl or cyclohexyl;
or B-Y is (cyclohexyl)2C=C(R3)-;
or when Y is a -C(A)=C(R3)- m may also be one: or a pharmaceutically acceptable acid addition salt thereof, useful as inhibitors of GABA uptake, are prepared by reacting an appropriate N-alkylating derivative with an ester of an N-unsubstituted azaheterocyclic carboxylic acid followed by hydrolysis of the ester.
-式中的取代杂杂环羧酸及其酯类
其中
n 为正整数 2、3 或 4;
m 为零;
R4 是氢或 1 至 4 个碳原子的低级烷基;
虚线代表任选键;
R5 是氢、或羟基、或当虚线形成双键时是氢;
B 是
其中 R 是氢、氟、氯、甲基或甲氧基;
Y 是-C(A)=C(R3)--CH
-其中 R2 是氢、氟、氯、甲基或甲氧基,R3 是氢或甲基,而 A 是
2-噻吩基、3-噻吩基或环己基;
或 B-Y 是 (环己基)2C=C(R3)-;
或当 Y 是-C(A)=C(R3)-时,m 也可以是一个:或其药学上可接受的酸加成盐,可作为 GABA 吸收抑制剂,通过将适当的 N-烷基化衍生物与 N-未取代杂杂环羧酸的酯反应,然后水解该酯制备。