Blood platelet aggregation inhibitory pyridine derivatives, pharmaceutical compositions thereof, and processes for their manufacture
申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0004727A2
公开(公告)日:1979-10-17
The invention concerns novel 1-benzyl-1,2,3,6-tetrahydropyridine derivatives of the general formula:-
wherein R' is hydrogen or a (1-4C)-alkyl radical, and benzene ring A bears one or two substituents selected from combinations of halogeno, (1-4C)-alkyl, (1-4C)-alkoxy, hydroxy, nitro, cyano, carboxamido, carboxyl, [(1-4C)-alkoxy]carbonyl, hydroxymethylene, amino, (1-4C)-alkanoylamino, (1-4C)-alkylsulphonamido, [(1-4C)-alkoxy]carbonyloxy, (1-4C)-alkanoyloxy and optionally substituted benzoyloxy radicals, and their pharmaceutically acceptable salts; pharmaceutical compositions thereof; and analogy proceases for their manufacture.
The tetrahydropyridine derivatives of formula I are preferably employed as their acid-addition salts and are inhibitors of the aggregation of blood platelets and as such may be of application in the treatment or prophylaxis of thrombosis or occlusive vascular disease. Representative compounds of formula I possessing particularly good blood platelet aggregation inhibitory properties are 1-(3,4-dichloro-,4-chloro-3-hydroxy-, and 4-hydroxy-benzyl)-1,2,3,6-tetrahydropyridine, preferably as their hydrochloride salts.
本发明涉及通式为:- 的新型 1-苄基-1,2,3,6-四氢
吡啶衍生物。
(1-4C)-烷基、(1-4C)-烷氧基、羟基、硝基、
氰基、羧酰胺基、羧基、[(1-4C)-烷氧基]羰基、
羟基亚甲基、
氨基、(1-4C)-烷酰
氨基、(1-4C)-烷基磺酰胺基、[(1-4C)-烷氧基]羰氧基、(1-4C)-烷酰氧基和任选取代的苯甲酰氧基的组合,以及它们的药学上可接受的盐;它们的药物组合物;以及生产它们的类似工艺。
式 I 的四氢
吡啶衍生物最好作为其酸加成盐使用,它们是血小板聚集的
抑制剂,因此可用于治疗或预防血栓形成或闭塞性血管疾病。具有特别好的血小板聚集抑制特性的代表性式 I 化合物是 1-(3,4-二
氯-、4-
氯-3-羟基-和
4-羟基-苄基)-
1,2,3,6-四氢吡啶,最好是它们的盐酸盐。