Cephalosporin derivatives, processes for their preparation and antibacterial agents
申请人:Banyu Pharmaceutical Co., Ltd.
公开号:EP0241901A2
公开(公告)日:1987-10-21
l. A compound having the formula:
wherein R is a straight chain or branched chain lower alkyl, cyclic lower alkyl, lower alkenyl (except for I-carboxy-l-vinyl), lower alkynyl, aralkyl, phenyl or 2-pyrrolidon-3-yl group which may be substituted, and Q is
(wherein R' is a hydrogen atom or an acetyl group, R2 is a hydrogen atom, a carboxyl group or a carboxymethyl group, Y is a sulfur atom or an oxygen atom, Z is a sulfur atom, an oxygen atom or an imino group which may be substituted by a lower alkyl group); or a pharmaceutically acceptable salt, physiologically hydrolyzable ester or solvate thereof.
l. 具有以下式子的化合物: 其中 R 是可被取代的直链或支链低级烷基、环状低级烷基、低级烯基(I-羧基-l-乙烯基除外)、低级炔基、芳基、苯基或 2-吡咯烷-3-基,Q 是(其中 R' 是氢原子或乙酰基,R2 是氢原子、羧基或羧甲基,Y 是硫原子或氧原子,Z 是硫原子、氧原子或可被低级烷基取代的亚氨基);或其药学上可接受的盐、生理上可水解的酯或溶液。