title: Pyridonecarboxylic acids as antibacterial agents. V. Synthesis of 1-vinyl-1,4-dihydro-4-oxo-1,8- and 1,6-naphthyridine-3-carboxylic acids.
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis*; D001419:Bacteria / Q000187:drug effects*; D055598:Chemical Phenomena; D002621:Chemistry; D009287:Naphthyridines / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D009287:Naphthyridines