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; andQ₁ 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,包括其药学上可接受的非毒性盐、生理上可
水解的酯、
水合物和溶剂化合物,其
化学式(I)及其异构体:其中:R¹是C₁₋₄烷基、C₃₋₄烯基、C₃₋₄炔基或-C(R³)(R⁴)COOH,其中R³和R⁴可以相同也可以不同,分别是氢、C₁₋₄烷基,或构成与R³和R⁴连接的碳原子形成的C₃₋₇环烷基;R²,可以连接到Na或Nb,是C₁₋₄烷基、C₃₋₄烯基、C₃₋₇环烷基、芳基或
氨基;以及Q₁和Q₂,可以相同也可以不同,是CH或N。