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.
该发明涉及高抗微生物活性的头孢菌素化合物,其化学式为:##STR1## 其中R.sup.1是氨基或保护的氨基基团; R.sup.2是较低的烷基,可以用一个羧基,较低的烯基,较低的炔基,环(较低)烷基或环(较低)烯基取代; 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)烷酰基羟基(较低)烷基氨基,烷酰氧(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)烷基硫,二(较低)烷基氨基(较低)烷基硫,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,取代了氧代、羟基和较低的烷基; R.sup.4是氢或较低的烷基;以及其药学上可接受的盐。