title: [Studies on beta-lactam antibiotics. III. Synthesis of 6-[D(--)-alpha-(acylamino)-phenylacetamido]penicillanic acids and antibacterial activity (author's transl)].
mesh_terms: D000667:Ampicillin / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects*; D010403:Penicillin Resistance; D013329:Structure-Activity Relationship
chemical_list: D000667:Ampicillin