申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US04423213A1
公开(公告)日:1983-12-27
The invention relates to novel 7-acylamino-3-vinylcephalosporanic acid derivatives of antimicrobial activity, and to methods of preparation thereof from novel intermediate compounds of the formula: ##STR1## in which R.sub.C is amino or a group of the formula: ##STR2## wherein R.sup.8 is aryl, A.sup.12 is lower alkylene having a group of the formula: .dbd.N.about.OR.sup.4, wherein R.sup.4 is hydrogen, cyclo(lower) alkenyl, lower alkynyl, lower alkenyl, lower alkenyl substituted by carboxy or a protected carboxy group, lower alkyl, or lower alkyl substituted by one or more substituent(s) selected from carboxy, a protected carboxy group, amino, a protected amino group, cyano, phosphono, a protected phosphono group and a heterocyclic group which may have suitable substituent(s), R.sup.a is a protected amino group, R.sup.b is a protected carboxy group, R.sup.c and R.sup.d are combined to form oxo or a protected oxo group, and X.sup.1 is halogen, and R.sup.2 is carboxy or a protected carboxy group, provided that, when R.sub.C is amino, then R.sup.2 is carboxy, or a salt thereof.
本发明涉及一种新型抗微生物活性的7-酰基氨基-3-乙烯头孢菌素酸衍生物,以及从新型中间化合物的制备方法,其中该中间化合物的化学式为:##STR1## 其中R.sub.C是氨基或式子:##STR2## 其中R.sup.8是芳基,A.sup.12是具有式子:.dbd.N.about.OR.sup.4的低位烷基,其中R.sup.4是氢,环(低)烯基,低炔基,低烯基,由羧基或受保护的羧基基团取代的低烯基,低烷基,或由一个或多个选自羧基,受保护的羧基基团,氨基,受保护的氨基基团,氰基,磷酸酯,受保护的磷酸酯基团和可能具有适当取代基团的杂环基团的取代基团取代的低烯基,R.sup.a是受保护的氨基基团,R.sup.b是受保护的羧基基团,R.sup.c和R.sup.d结合形成氧或受保护的氧基团,X.sup.1是卤素,R.sup.2是羧基或受保护的羧基基团,但当R.sub.C是氨基时,R.sup.2是羧基或其盐。