申请人:Lucky, Ltd.
公开号:US05202315A1
公开(公告)日:1993-04-13
The present invention relates to new cephalosporin compounds of the formula(I), pharmaceutically acceptable non-toxic salts thereof, and physiologically hydrolyzable esters and solvates thereof, which have potent and broad antibacterial activities ##STR1## wherein R.sup.1 is a C.sub.1.about.4 alkyl, C.sub.3.about.4 alkenyl, C.sub.3.about.4 alkynyl group, or --C(R.sup.a)(R.sup.b)CO.sub.2 H.sub.1 wherein R.sup.a and R.sup.b are the same or different, and each is a hydrogen atom or a C.sub.1.about.4 alkyl group, or R.sup.a and R.sup.b form a C.sub.3.about.7 cycloalkyl group with the carbon atom to which they are linked; R.sup.2 is a C.sub.1.about.4 alkyl, C.sub.3.about.4 alkenyl or C.sub.3.about.4 cycloalkyl group, a substituted or unsubstituted amino group, or a substituted or unsubstituted phenyl group; R.sup.3 is hydrogen or a C.sub.1.about.4 alkyl group; and Q is N or CH. The invention further relates to a process for preparing said compounds, and to pharamaceutical compositions containing said compounds.
本发明涉及新的头孢菌素化合物的公式(I),其药学上可接受的非毒性盐,以及具有强大和广谱抗菌活性的生理水解酯和溶剂化合物。其中R.sup.1是C.sub.1到4烷基,C.sub.3到4烯基,C.sub.3到4炔基,或--C(R.sup.a)(R.sup.b)CO.sub.2 H.sub.1,其中R.sup.a和R.sup.b相同或不同,且每个都是氢原子或C.sub.1到4烷基,或R.sup.a和R.sup.b形成与它们连接的碳原子的C.sub.3到7环烷基;R.sup.2是C.sub.1到4烷基,C.sub.3到4烯基或C.sub.3到4环烷基,一个取代或未取代的氨基团,或一个取代或未取代的苯基;R.sup.3是氢或C.sub.1到4烷基;Q是N或CH。该发明还涉及制备所述化合物的方法,以及含有所述化合物的药物组合物。