申请人:SS Pharmaceutical Co., Ltd.
公开号:US04450109A1
公开(公告)日:1984-05-22
The specification describes novel thiazinobenzimidazole 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 carboxylic acid or halogenide or by reacting 2-p-toluenesulfonyloxymethyl-thiazinobenzimidazole derivatives with sodium azides, thiols, phenols or amines. The above thiazinobenzimidazole derivatives wherein X is 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.
该规范描述了由通式所表示的新型噻唑苯并咪唑衍生物:## STR1 ## 其中R.sub.1,R.sub.2和X分别表示各种取代基。上述噻唑苯并咪唑衍生物可通过将相应的2-羟甲基噻唑苯并咪唑衍生物与相应的羧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叠氮化钠、硫醇、酚或胺反应制备。其中X为OH的噻唑苯并咪唑衍生物可通过还原其相应的2-烷氧羰基衍生物来制备。当X表示p-甲苯磺酰氧基时,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噻唑苯并咪唑衍生物。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可用作循环系统药物。