title: Researches on antibacterial and antifungal agents. II - Synthesis of 1-ethyl-1,4-dihydro-4-oxo-7-(1-pyrrolidinyl)quinoline-3-carboxylic acid, a novel highly active, broad-spectrum antibacterial agent related to piromidic acid.
abstract: The synthesis and antibacterial activities of 1-ethyl-1,4-dihydro-4-oxo-7-(1-pyrrolidinyl)quinoline-3-carboxylic acid are reported. The new analog of nalidixic acid has been prepared by standard procedure starting from 1-(3-aminophenyl)pyrrole; it showed a broad spectrum of antibacterial activity and exhibited much higher activity than nalidixic, pipemidic and piromidic acids. The synthesis of 1-ethyl-1,4-dihydro-4-oxo-8-(1-pyrrolyl)quinoline-3-carboxylic acid is also described; this acid was inactive when tested as antibacterial agent.
mesh_terms: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents / Q000138:chemical synthesis*; D000935:Antifungal Agents / Q000138:chemical synthesis; D001758:Blastomyces / Q000187:drug effects; D002176:Candida albicans / Q000187:drug effects; D055598:Chemical Phenomena; D002621:Chemistry; D004755:Enterobacteriaceae / Q000187:drug effects; D006094:Gram-Positive Bacteria / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D009539:Nicotinic Acids / Q000494:pharmacology*; D010893:Piromidic Acid / Q000031:analogs & derivatives / Q000138:chemical synthesis / Q000494:pharmacology*; D011511:Proteus / Q000187:drug effects; D011550:Pseudomonas aeruginosa / Q000187:drug effects; D011759:Pyrrolidines / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents; D000935:Antifungal Agents; D009539:Nicotinic Acids; D011759:Pyrrolidines; D010893:Piromidic Acid