title: [Studies on pyrido (2,3-d) pyrimidine antibacterial agents].
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects; D011725:Pyridines / Q000138:chemical synthesis*; D011743:Pyrimidines / Q000138:chemical synthesis*
chemical_list: D000900:Anti-Bacterial Agents; D011725:Pyridines; D011743:Pyrimidines