申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US04521413A1
公开(公告)日:1985-06-04
The invention relates to cephem compounds of high antimicrobial activity, of the formula: ##STR1## wherein R.sup.1 is amino or a protected amino group; R.sup.2 is lower alkyl which may be substituted with one carboxy, lower alkenyl, lower alkynyl, cyclo (lower) alkyl or cyclo (lower) alkenyl; R.sup.3 is lower alkylamino, N-(lower) alkanoyl (lower) alkylamino, di (lower) alkylamino, sulfo (lower) alkylamino, hydroxy (lower) alkylamino, N-(lower) alkanoylhydroxy (lower) alkylamino, alkanoyloxy (lower) alkyl, alkenoyloxy (lower) alkyl, lower alkoxy (lower) alkoxy (lower) alkyl, di (lower) alkylamino (lower) alkyl, lower alkylthio (lower) alkyl, lower alkylthio, lower alkoxy, lower alkoxy (lower) alkoxy, hydroxy (lower) alkoxy, lower alkanesulfonyl (lower) alkyl, hydroxy (lower) alkylthio, di (lower) alkylamino (lower) alkylthio, tetrazolyl, tetrazolylthio, tetrazolylthio (lower) alkyl or dihydrotriazinylthio (lower) alkyl substituted with oxo, hydroxy and lower alkyl; and R.sup.4 is hydrogen or lower alkyl; and pharmaceutically acceptable salts thereof.
该发明涉及具有高抗微
生物活性的头孢类化合物,其
化学式为:##STR1## 其中R.sup.1是
氨基或受保护的
氨基基团;R.sup.2是较低的烷基,可能被取代为一个羧基,较低的烯基,较低的炔基,环(较低)烷基或环(较低)烯基;R.sup.3是较低的烷基
氨基,N-(较低)烷酰基(较低)烷基
氨基,二(较低)烷基
氨基,
磺酸(较低)烷基
氨基,羟基(较低)烷基
氨基,N-(较低)烷酰羟基(较低)烷基
氨基,酰氧(较低)烷基,烯酰氧(较低)烷基,较低的烷氧(较低)烷氧(较低)烷基,二(较低)烷基
氨基(较低)烷基,较低的烷基
硫(较低)烷基,较低的烷基
硫,较低的烷氧,较低的烷氧(较低)烷氧,羟基(较低)烷氧,较低的烷磺酰基(较低)烷基,羟基(较低)烷
硫,二(较低)烷基
氨基(较低)烷
硫,
四唑基,
四唑基
硫,
四唑基
硫(较低)烷基或二氢三嗪基
硫(较低)烷基,取代为醛基、羟基和较低烷基;R.sup.4是氢或较低烷基;以及其药学上可接受的盐。