申请人:Meiji Seika Kabushiki Kaisha
公开号:US05663162A1
公开(公告)日:1997-09-02
Compounds represented by the following formula (I), that is, cephem derivatives having substituted or unsubstituted imidazo[5,1-b]thiazolium-6-yl as a substituent at the 3-position of the cephem ring: ##STR1## wherein X represents CH or N, R.sup.1 represents H, alkyl, alkenyl or the like, and R.sup.2, R.sup.3, R.sup.4 and R.sup.5 represent H, alkyl, carbamoyl, amino or the like. The above compounds have excellent antibacterial activity, and useful as medicines for the treatment of various infectious diseases caused by bacteria.
具有下述通式(I)表示的化合物,即头孢烯环的3位上具有取代或未取代的咪唑并[5,1-b]噻唑鎓-6-基作为取代基的头孢烯衍生物:##STR1## 其中X代表CH或N,R1代表H、烷基、烯基等,R2、R3、R4和R5代表H、烷基、氨甲酰基、氨基等。上述化合物具有优异的抗菌活性,可作为治疗由细菌引起的各种感染性疾病的药物。