[New beta-lactam antibiotics. Cephem derivatives with electron withdrawing substituents at position 3 (author's transl)].
D002264:Carboxylic Acids; D002511:Cephalosporins / Q000138:chemical synthesis*; D008722:Methods; D010084:Oxidation-Reduction
D002264:Carboxylic Acids; D002511:Cephalosporins
Neue beta-Lactam-Antibiotika. Cephem-Derivate mit elektronen-anziehenden Substituenten in 3-Stellung