title: [Investigations about the antibacterial activity of quinolonecarboxylic acids. II. Synthesis of I-ethyl-4-quinolone-3-carboxylic acids with fused five-membered heterocyclic rings].
mesh_terms: D000890:Anti-Infective Agents / Q000138:chemical synthesis*; D002264:Carboxylic Acids / Q000138:chemical synthesis*; D005663:Furans; D007659:Ketones; D011758:Pyrroles; D011804:Quinolines / Q000138:chemical synthesis*; D013876:Thiophenes
chemical_list: D000890:Anti-Infective Agents; D002264:Carboxylic Acids; D005663:Furans; D007659:Ketones; D011758:Pyrroles; D011804:Quinolines; D013876:Thiophenes
vernacular_title: Untersuchungen über die antibakterielle Aktivität von Chinoloncarbonsäuren. II. Synthese von 1-Athyl-4-chinolon-3-carbonsäuren mit anellierten heterocyclischen Fünfringen.