Cephalosporins, processes for their preparation, pharmaceutical compositions containing them and intermediates therefor
申请人:ZENECA LIMITED
公开号:EP0412763A2
公开(公告)日:1991-02-13
Cephalosporin antibiotics having a 3-position substituent of the formula:
are described, wherein X is -CO-, -SO₂- or -COCH₂-; Y is -CO-, -SO₂-or -CH₂-; Q is a benzene, pyridine or naphthalene ring, R¹ and R² are ortho with respect to each other and are independently hydroxy or of the formula O-M wherein M is a moiety and the O-M bond is cleavable in vivo and ring Q may be further substituted by a variety of atoms and groups. Processes for their preparation and use are described.
具有式中 3 位取代基的头孢菌素类抗生素:
所述,其中 X 是 -CO-、-SO₂- 或 -COCH₂-;Y 是 -CO-、-SO₂- 或 -CH₂-;Q 是苯、吡啶或萘环;R¹ 和 R² 相互正交,独立地为羟基或式 O-M,其中 M 为分子,O-M 键可活体裂解;环 Q 可进一步被各种原子和基团取代。本文介绍了其制备和使用方法。