6-Fluoro-2-oxo-1-(2-oxo-2-phenyl-ethyl)-4-[4-(thiophene-2-carbonyl)-piperazin-1-yl]-1,2-dihydro-[1,8]-naphthyridine-3-carboxylic Acid Ethyl Ester (HCID 59699619)|Huagongshe