title: [Studies on beta-lactam antibiotics for medicinal purpose. II. Synthesis of D(-)-alpha-[dioxo-1-piperazinecarboxamido]benzylpenicillins and structure-antibacterial activity (author's transl)].
mesh_terms: D001419:Bacteria / Q000187:drug effects; D010400:Penicillin G / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000494:pharmacology; D010403:Penicillin Resistance; D013329:Structure-Activity Relationship
chemical_list: D010400:Penicillin G