申请人:Merck & Co., Inc.
公开号:EP0099580A1
公开(公告)日:1984-02-01
Disclosed are new 2-atkyl-1-oxa-1-dethiacephalosporin derivatives of the general formula:
and pharmaceutically acceptable salts or esters thereof, wherein R represents a group of the formula:
in which R1 is a 2-thienyl or 3-thienyl group and R2 is a hydrogen atom or a carboxyl group, or R-represents a group of the formula:
in which R3 is a hydrogen atom, a lower alkyl or carboxyllower alkyl group; R4 represents a hydrogen atom or a methoxy group, R5 represents a lower alkyl group; Rs represents hydrogen, azido, halo, cyano, quaternary ammonium, hydroxy, carbamoyloxy, N-loweralkyl carbamoyloxy, N,N-di- loweralkyl carbamoyloxy, amino, mercapto, loweralkylthio, loweralkanoyloxy, aroyloxy, or a 5- or 6-membered optionally substituted heterocyclic thio radical. Those compounds exhibit antibacterial activity.
本发明公开了通式如下的新型 2-烷基-1-氧杂-1-二硫代头孢菌素衍生物:
及其药学上可接受的盐或酯,其中 R 代表式中的基团:
其中 R1 是 2-噻吩基或 3-噻吩基,R2 是氢原子或羧基,或 R 代表式中的一个基团:
其中 R3 是氢原子、低级烷基或羧基低级烷基;R4 代表氢原子或甲氧基,R5 代表低级烷基;Rs 代表氢、叠氮基、卤代基、氰基、季铵基、羟基、氨基甲酰氧基、N-低级烷基氨基甲酰氧基、N,N-二低级烷基氨基甲酰氧基、氨基、巯基、低级烷硫基、低级烷酰氧基、酰氧基或 5 或 6 元任选取代的杂环硫基。这些化合物具有抗菌活性。