申请人:Imperial Chemical Industries PLC
公开号:US04645771A1
公开(公告)日:1987-02-24
The disclosure concerns novel 1-benzyl-1,2,3,6-tetrahydropyridine derivatives of the formula: ##STR1## wherein R.sup.1 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; analogy processes for their manufacture; and methods of medical treatment employing such derivatives. The compounds of formula I are inhibitors of the aggregation of blood platelets and are of application in the treatment or prophylaxis of thrombosis or occlusive vascular disease. Representative compounds 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.
该披露涉及一种新型的1-苄基-1,2,3,6-四氢吡啶衍生物,其化学式为:##STR1## 其中R1为氢或(1-4C)-烷基基团,苯环A带有一或两个取自卤代、(1-4C)-烷基、(1-4C)-烷氧基、羟基、硝基、氰基、羧酸酰胺基、羧基、[(1-4C)-烷氧基]羰基、羟甲基、氨基、(1-4C)-烷酰胺基、(1-4C)-烷基磺酰胺基、[(1-4C)-烷氧基]羰氧基、(1-4C)-烷酰氧基和可选取代的苯甲酰氧基基团的组合,以及其药学上可接受的盐;其制药组合物;其制备的类似物工艺;以及采用这些衍生物的医疗治疗方法。公式I的化合物是血小板聚集抑制剂,适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性能的代表性化合物是1-(3,4-二氯-、4-氯-3-羟基-和4-羟基-苄基)-1,2,3,6-四氢吡啶,优选为其盐酸盐。