英文别名Ethyl 6,7-difluoro-2-ethylmercapto-4-hydroxyquinoline-3-carboxylate; Prulifloxacin Intermediate PL-7; 3-quinolinecarboxylicacid, 2-(ethylthio)-6,7-difluoro-4-hydroxy-,ethyl ester; PL-7; 2-(ethylthio)-6,7-difluoro-4-oxo-1H-quinoline-3-carboxylic acid ethyl ester; Ethyl 2-ethylsulfanyl-6,7-difluoro-4-oxo-1H-quinoline-3-carboxylate; Ethyl 2-(ethylsulfanyl)-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate 
