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US4496561A Cephalosporin derivative 失效
头孢菌素衍生物

Cephalosporin derivative
摘要:
A cephalosporin derivative having an antibacterial activity similar to a cephalosporin antibiotic in living bodies without affecting the intestinal bacterial colonies, a method for preparing the derivative and a pharmaceutical composition in a dosage unit form containing the derivative as an active ingredient are disclosed.
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