申请人:Takeda Chemical Industries, Ltd.
公开号:US03951989A1
公开(公告)日:1976-04-20
Novel thienopyridine-carboxylic acid derivatives, which are shown by the general formula ##SPC1## Wherein R.sup.1 represents hydrogen or a lower alkyl; R.sup.2 represents hydrogen, a lower alkyl or a halogen; or R.sup.1 and R.sup.2, taken together, may represent an alkylene to form a 5- or 6-membered ring with or without alkyl substituents; each of R.sup.4 and R.sup.5 represents hydrogen or a lower alkyl; and their pharmaceutically acceptable salts obtainable when R.sup.4 is hydrogen, which are useful medicines such as chemotherapeutic agents of bacterial infections.
新型噻吩吡啶羧酸衍生物,其一般式如下所示:其中R.sup.1代表氢或较低的烷基;R.sup.2代表氢、较低的烷基或卤素;或R.sup.1和R.sup.2一起,可以代表烷基,形成一个5-或6-成员环,有或没有烷基取代基;R.sup.4和R.sup.5中的每一个代表氢或较低的烷基;当R.sup.4为氢时,其药用可接受的盐,可用作细菌感染的化疗药物等有用药物。