title: [Studies on beta-lactam antibiotics. IV. Synthesis of apalcillin (author's transl)].
mesh_terms: D001419:Bacteria / Q000187:drug effects; D004352:Drug Resistance, Microbial; D047090:beta-Lactams / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D047090:beta-Lactams