title: [New beta-lactam antibiotics. Derivatives of 3-hydroxy-7-amino-ceph-3-em-4-carboxylic acid].
mesh_terms: D000478:Alkylation; D000596:Amino Acids; D002264:Carboxylic Acids; D002511:Cephalosporins / Q000138:chemical synthesis*; D006900:Hydroxylation; D008722:Methods; D010084:Oxidation-Reduction; D047090:beta-Lactams / Q000138:chemical synthesis
chemical_list: D000596:Amino Acids; D002264:Carboxylic Acids; D002511:Cephalosporins; D047090:beta-Lactams
vernacular_title: Neue beta-Lactam-Antibiotika. Uber Derivate der 3-Hydroxy-7-amino-ceph-3-em-4-carbonsäure