Synonyms: Ethyl1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylate;Ethyl1-cyclopropyl-6,7-difluoro-8-methoxy-4-oxo-1,4-dihydro-3-quinolinecarboxylate;3-Quinolinecarboxylicacid, 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-, ethyl ester;