申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US04560765A1
公开(公告)日:1985-12-24
Antibiotic cephalosporin compounds, method of making and pharmaceutical composition thereof represented by the general formula ##STR1## wherein R.sup.1 is amino, lower alkylamino, a protected amino, a protected lower alkylamino, hydroxy or lower alkoxy, R.sup.2 is hydrogen, acyloxy, pyridium or a heterocyclicthio group which may have suitable substituent(s), R.sup.3 is carboxy or its derivative, A is carbonyl, hydroxy(lower)alkylene or a protected hydroxy(lower)alkylene and R.sup.4 is hydrogen or halogen, or R.sup.2 and R.sup.3 are linked together to represent a group of the formula --COO--, this divisional application being directed to intermediate compounds of the formula: ##STR2##
抗生素头孢菌素化合物、制备方法和药物组合物,其通式为##STR1##其中R.sup.1是氨基、低烷基氨基、保护的氨基、保护的低烷基氨基、羟基或低烷氧基,R.sup.2是氢、酰氧、吡啶或含有适当取代基的杂环硫基,R.sup.3是羧基或其衍生物,A是羰基、羟基(低)烷基或保护的羟基(低)烷基,R.sup.4是氢或卤素,或R.sup.2和R.sup.3连接在一起表示公式--COO--的基团,本分案涉及通式的中间化合物:##STR2##