申请人:SS Pharmaceutical Co., Ltd.
公开号:US04369309A1
公开(公告)日:1983-01-18
The specification describes novel thiazinobenzmidazole derivatives represented by the general formula: ##STR1## wherein R.sub.1, R.sub.2 and X represent a wide variety of substituent groups respectively. The above thiazinobenzimidazole derivatives may be prepared by reacting corresponding 2-hydroxymethyl thiazinobenzimidazole derivatives with corresponding reactive derivatives of carbonylic acid or halogenide or by reacting 2-p-toluenesulfonyloxymethyl-thiazinobenzimidazole derivatives with sodium azides, thiols, phenols or amines. The above thiazinobenzimidazole derivatives wherein X in OH may be prepared by reducing their corresponding 2-alkoxycarbonyl derivatives. Where X represents a p-toluenesulfonyloxy group, the thiazinobenzimidazole derivatives may be obtained by reacting corresponding 2-hydroxymethyl-thiazinobenzimidazole derivatives with p-toluenesulfonyl chloride. Where X stands for an N-substituted 2-(homo)piperazinomethyl group, 2-(homo)piperazinomethyl-thiazinobenzimidazole derivatives are reacted with reactive compounds to introduce the desired substituent groups. The thiazinobenzimidazole derivatives according to this invention are useful as medicament for circulatory systems.
该规范描述了新型噻唑苯并咪唑衍生物,其通式为:##STR1## 其中R.sub.1,R.sub.2和X分别代表各种取代基团。上述噻唑苯并咪唑衍生物可以通过将相应的2-羟甲基噻唑苯并咪唑衍生物与相应的羰基酸或卤代衍生物反应,或通过将2-p-甲苯磺酰氧甲基噻唑苯并咪唑衍生物与氮化钠,硫醇,酚或胺反应来制备。其中X为OH的噻唑苯并咪唑衍生物可以通过还原其相应的2-烷氧羰基衍生物来制备。当X代表p-甲苯磺酰氧基时,噻唑苯并咪唑衍生物可以通过将相应的2-羟甲基噻唑苯并咪唑衍生物与p-甲苯磺酰氯反应来获得。当X代表N-取代的2-(同)哌嗪甲基基团时,2-(同)哌嗪甲基噻唑苯并咪唑衍生物会与反应性化合物反应,以引入所需的取代基团。根据本发明的噻唑苯并咪唑衍生物在循环系统药物中有用。