申请人:LUCKY LTD.
公开号:EP0508375A2
公开(公告)日:1992-10-14
The present invention relates to a cephalosporin compound including the pharmaceutically acceptable non-toxic salts, physiologically hydrolyzable esters, hydrates and solvates thereof of the formula(I) and its isomers:
wherein:
R¹is a C₁₋₄ alkyl, C₃₋₄ alkenyl, C₃₋₄alkynyl or -C(R³)(R⁴)COOH wherein R³ and R⁴, which may be the same or different, are hydrogen, C₁₋₄ alkyl group, or constitute a C₃₋₇ cycloalkyl group with the carbon atoms to which R³ and R⁴ are attached;
R²,which may be attached to Na or Nb, is a C₁₋₄ alkyl, C₃₋₄ alkenyl, C₃₋₇ cycloalkyl, aryl or amino group; and
Q₁ and Q₂,which may be the same or different, are CH or N.
本发明涉及一种头孢菌素化合物,包括式(I)及其异构体的药学上可接受的无毒盐、生理上可水解的酯、水合物和溶液:
其中
R¹ 是 C₁₋₄烷基、C₃₋₄ 烯基、C₃₋₄ 烷基或 -C(R³)(R⁴)COOH 其中 R³ 和 R⁴ 可以相同或不同、是氢、C₁₋₄ 烷基或与 R³ 和 R⁴ 所连接的碳原子构成 C₃₋₇ 环烷基;
可连接至 Na 或 Nb 的 R² 是 C₁₋₄ 烷基、C₃₋₄ 烯基、C₃₋₇ 环烷基、芳基或氨基;以及
Q₁ 和 Q₂(可以相同或不同)是 CH 或 N。