7-[2-(t-Butoxycarbonyl)-8-(methoxyimino)-2,6-diazaspiro[3,4]oct-6-yl]-1-cyclopropyl-5-amino-6,8-difluoro-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid (HCID 54349663)|Huagongshe