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抗生素市场是世界药物领域中的最大市场。引人注日的头孢菌素也已成为这个最大市场的角逐中心。1984年10月在美国华盛顿召开的24届抗菌剂和化学治疗国际会议(ICAAC)上所报道的新药,几乎大部分是头孢类抗生素。有关专家预测,八十年代末到九十年代初,头孢菌素仍是抗生素领域中的主要研究对象。第一代头孢菌素的特点是:对革兰氏阳性菌包括耐青霉素G金葡菌较第三代为强,对肠杆菌科细菌基本无效;对各种β-内酰胺
The antibiotic market is the largest market in the world of pharmaceuticals. Attracting cephalosporins has also become the center of competition for this largest market. Most of the new drugs reported at the 24th International Conference on Antibacterial Agents and Chemotherapy (ICAAC) held in October 1984 in Washington, D.C., were mostly cephalosporins. Experts predict that from the late 1980s to the early 1990s, cephalosporins remain the main research subjects in the field of antibiotics. The first generation of cephalosporins is characterized by: Gram-positive bacteria, including penicillin-resistant Staphylococcus aureus than the third generation is strong, the Enterobacteriaceae bacteria basically ineffective; various β-lactam