申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US04452851A1
公开(公告)日:1984-06-05
This invention relates to novel cephem compounds of high antimicrobial activity of the formula: ##STR1## wherein R.sup.1 is amino substituted thiazolyl selected from the group consisting of 2-aminothiazol-4-yl, 2-aminothiazol-5-yl, 4-aminothiazol-2-yl, 2-amino-5-halothiazol-4-yl, 2-amino-4-halothiazol-5-yl, and 4-amino-5-halothiazol-2-yl, protected amino substituted thiazolyl selected from said group, lower alkylamino substituted thiazolyl, amino substituted thiadiazolyl, protected amino substituted thiadiazolyl, amino substituted pyridyl, protected amino substituted pyridyl, furyl, thiazolyl, thiadiazolyl, phenyl, or naphthyl, R.sup.2 is carboxy(lower)alkyl or protected carboxy(lower)alkyl, R.sup.3 is lower alkylthio, and R.sup.4 is carboxy or protected carboxy, and pharmaceutically acceptable salts thereof.
本发明涉及具有高抗菌活性的新颖头孢烯化合物,其通式为:##STR1##其中R1为选自以下组的氨基取代的噻唑基:2-氨基-4-噻唑基、2-氨基-5-噻唑基、4-氨基-2-噻唑基、2-氨基-5-卤代-4-噻唑基、2-氨基-4-卤代-5-噻唑基、4-氨基-5-卤代-2-噻唑基,以及该组中的保护氨基取代的噻唑基、低级烷基氨基取代的噻唑基、氨基取代的噻二唑基、保护氨基取代的噻二唑基、氨基取代的吡啶基、保护氨基取代的吡啶基、呋喃基、噻唑基、噻二唑基、苯基或萘基;R2为羧基(低级)烷基或保护的羧基(低级)烷基;R3为低级烷硫基;R4为羧基或保护的羧基,以及其药学上可接受的盐。