申请人:Bristol-Myers Company
公开号:US04026888A1
公开(公告)日:1977-05-31
Compounds of the formula ##STR1## wherein A is hydrogen, hydroxy, methyl or methoxy, R.sup.1 is hydrogen, sodium or potassium, R.sup.2 is carboxyl or an aliphatic, aromatic or heterocyclic radical to which there is also attached a strongly acidic group in the form of its sodium or potassium salt, and R.sup.3 is 1,2,3-triazol-5-yl, such group being unsubstituted or substituted with one or two lower alkyl groups of one to four carbon atoms are prepared by reacting the appropriate aldehyde with the corresponding amphoteric cephalosporin. A preferred product has the structure ##STR2##
化合物的公式为##STR1##其中A是氢,羟基,甲基或甲氧基,R.sup.1是氢,钠或钾,R.sup.2是羧基或脂肪,芳香或杂环基,其中也附有强酸性基团以其钠或钾盐的形式,而R.sup.3是1,2,3-三唑-5-基团,该基团未被取代或被一个或两个碳原子为一到四的低烷基取代,通过将适当的醛与相应的两性头孢菌素反应制备而成。一种优选的产物具有结构##STR2##