1-ethyl-6-fluoro-7-piperazin-1-yl-2,3-dihydroquinolin-4-one

N-羟基诺氟沙星

培氟沙星

琥诺沙星

1-ethyl-6-fluoro-4-oxo-7-[4-(2-oxopropyl)piperazin-1-yl]quinoline-3-carboxylic acid