title: Development of antipseudomonal beta-lactam antibiotics having 2, 3-dioxopiperazine group.
mesh_terms: D000818:Animals; D002438:Cefoperazone / Q000494:pharmacology*; D002626:Chemistry, Pharmaceutical; D004285:Dogs; D051379:Mice; D010878:Piperacillin / Q000494:pharmacology*; D011549:Pseudomonas / Q000187:drug effects*; D051381:Rats
chemical_list: D002438:Cefoperazone; D010878:Piperacillin