申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US04242510A1
公开(公告)日:1980-12-30
Cephalosporin compounds of the formula (I): ##STR1## wherein R.sup.1 is a group of the formula: ##STR2## in which X is sulfur, oxygen or substituted or unsubstituted imino, M is sulfur or oxygen, R.sup.2 is hydrogen, or a saturated or unsaturated aliphatic hydrocarbon residue, R.sup.3 is hydrogen or lower alkyl, R.sup.4 is hydrogen, halogen, lower alkyl, acyloxymethyl or heterocyclic-thiomethyl which may be substituted with lower alkyl, and R.sup.5 is carboxy or its derivative, and nontoxic, pharmaceutically salt thereof.
头孢菌素化合物的化学式(I):其中R.sup.1是以下化学式的基团:其中X是硫、氧或取代或未取代的亚胺,M是硫或氧,R.sup.2是氢,或饱和或不饱和的脂肪烃基,R.sup.3是氢或较低的烷基,R.sup.4是氢、卤素、较低烷基、乙酰氧甲基或杂环硫甲基,可以用较低烷基取代,R.sup.5是羧基或其衍生物,以及其无毒、药用盐。