申请人:YAMANOUCHI PHARMACEUTICAL CO. LTD.
公开号:EP0160546A2
公开(公告)日:1985-11-06
This invention relates to antibacterial cephalosporin compounds, to the production of these compounds, and to medical compositions containing them. The compounds of this invention are those of the general formula I and salts thereof:
wherein
R1 represents a lower alkyl group which may be substituted by a carboxyl group;
R2 and R3, which may be the same or different, each represents an amino group, a lower alkyl group, a lower alkylthio group, or a lower alkoxy group which may be substituted by hydroxyl group(s) and or amino group(s), or R2 and R3 combine to form
wherein
R4 represents a hydrogen atom, a hydroxyl group, or a lower alkoxy group; A represents a direct linkage or a carbonyl group; and m represents an integer of 1 to 2.
本发明涉及抗菌头孢菌素化合物、这些化合物的生产以及含有这些化合物的医用组合物。本发明的化合物为通式 I 及其盐类:
其中
R1 代表可被羧基取代的低级烷基;
R2和R3可以相同或不同,各自代表氨基、低级烷基、低级烷硫基或可被羟基和或氨基取代的低级烷氧基,或R2和R3结合形成
其中
R4 代表氢原子、羟基或低级烷氧基;A 代表直接连接或羰基;m 代表 1 至 2 的整数。