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.
该发明涉及具有抗微生物活性的新型7-酰氨基-3-乙烯头霉素酸衍生物,以及从新型中间化合物制备它们的方法。公式为:其中R.sub.C是氨基或具有以下式的基团:其中R.sup.8是芳基,A.sup.12是具有以下式的低烷基:.dbd.N.about.OR.sup.4,其中R.sup.4是氢,环(低)烯基,低炔基,低烯基,低烯基取代的羧基或受保护的羧基,低烷基,或低烷基取代的一个或多个取代基,所选自羧基,受保护的羧基,氨基,受保护的氨基,氰基,磷酸基,受保护的磷酸基和可能具有适当取代基的杂环基,R.sup.a是受保护的氨基基团,R.sup.b是受保护的羧基,R.sup.c和R.sup.d结合形成氧代基或受保护的氧代基,X.sup.1是卤素,R.sup.2是羧基或受保护的羧基,但当R.sub.C是氨基时,R.sup.2是羧基或其盐。