申请人:Lucky Limited
公开号:US05292733A1
公开(公告)日:1994-03-08
The present invention relates to a cephalosporin compound including the pharmaceutically acceptable non-toxic salts, physiologically hydrolyzable esters, hydrates and solvates thereof of the formula(I) and its isomers: ##STR1## wherein: R.sup.1 is a C.sub.1-4 alkyl, C.sub.3-4 alkenyl, C.sub.3-4 alkynyl or --C(R.sup.3)(R.sup.4)COOH wherein R.sup.3 and R.sup.4, which may be the same or different, are hydrogen, C.sub.1-4 alkyl group, or constitute a C.sub.3-7 cycloalkyl group with the carbon atoms to which R.sup.3 and R.sup.4 are attached; R.sup.2, which may be attached to N.sup.a or N.sup.b, is a C.sub.1-4 alkyl, C.sub.3-4 alkenyl, C.sub.3-7 cycloalkyl, aryl or amino group; and Q.sub.1 and Q.sub.2, which may be the same or different, are CH or N.
本发明涉及一种头孢菌素化合物,包括其药学上可接受的非毒性盐、生理水解酯、水合物和溶剂化合物,其化学式为(I)及其异构体:其中:R.sup.1是C.sub.1-4烷基,C.sub.3-4烯基,C.sub.3-4炔基或--C(R.sup.3)(R.sup.4)COOH,其中R.sup.3和R.sup.4,可以相同也可以不同,是氢,C.sub.1-4烷基,或者构成一个与R.sup.3和R.sup.4连接的碳原子形成C.sub.3-7环烷基;R.sup.2,可以连接到N.sup.a或N.sup.b,是C.sub.1-4烷基,C.sub.3-4烯基,C.sub.3-7环烷基,芳基或氨基;Q.sub.1和Q.sub.2,可以相同也可以不同,是CH或N。