申请人:Hoffmann-La Roche Inc.
公开号:US04091211A1
公开(公告)日:1978-05-23
Cephalosporins represented by the formula X-S-Y wherein X is a deacetoxycephalosporinyl group and Y is a 6-membered heterocyclic group containing 1-3 nitrogens at least one of which is substituted and at least one of which is adjacent to a carbonyl group, said heterocyclic group containing one or more ring substituents and being characterized by being non-aromatic and not enolizable to an aromatic form.
头孢菌素的结构式为X-S-Y,其中X是去乙酰头孢菌素基团,Y是含有1-3个氮原子的6元杂环基团,其中至少一个被取代,至少一个邻近一个羰基,所述杂环基团含有一个或多个环取代基,其特点是非芳香性且不能转变为芳香形式。