[New  -lactam antibiotics. Preparation of 7-aminocephalocillanic acid].
D002511:Cephalosporins / Q000138:chemical synthesis*; D003500:Cyclization; D004952:Esters / Q000138:chemical synthesis; D007769:Lactams / Q000138:chemical synthesis; D008722:Methods
D002511:Cephalosporins; D004952:Esters; D007769:Lactams
Neue  -Lactam-Antibiotika. Uber die Darstellung der 7-Aminocephalocillansäure.