申请人:Mochida Pharmaceutical Co., Ltd.
公开号:US04880798A1
公开(公告)日:1989-11-14
The present invention relates to novel cephalosporin derivatives, processes for preparing thereof, compositions for preventing and/or treating infectious diseases which comprise the novel cephalosporin derivatives as active components, and the intermediate compounds in the synthesis of cephalosporin derivatives and processes for producing thereof. The present invention is based on the selection of groups containing a condensed heterocyclic ring, particularly a triazolopyrimidine ring, as substitutents at the 3-position of the cephem skeleton, and of groups containing a carboxyl and hydroxy substituted phenylmethyloxyimino moiety, particularly a (carboxy substituted catechol)methyloxyimino moiety, as substituents at the 7-position of the cephem skeleton. The compounds of the present invention containing the aforementioned substituents have a strong antibacterial activity against Gram-negative bacteria and also against Gram-positive bacteria including methicillin-resistant Staphylococcus aureus. These compounds are extremely useful for the treatment of infectious diseases.
本发明涉及新型头孢菌素衍生物、其制备过程、用作活性成分预防和/或治疗传染病的组合物,以及头孢菌素衍生物合成中的中间化合物和其生产过程。本发明基于在头孢菌素骨架的3位选择含有紧缩杂环环,特别是三唑嘧啶环的取代基,以及在头孢菌素骨架的7位选择含有羧基和羟基取代的苯甲氧基亚胺基团,特别是含有(羧基取代的邻苯二酚)甲氧基亚胺基团的取代基。本发明中含有上述取代基的化合物对革兰氏阴性菌和包括耐甲氧西林金黄色葡萄球菌在内的革兰氏阳性菌具有强烈的抗菌活性。这些化合物对于治疗传染病非常有用。