127254-11-9

DU 6856 SitafloxacinisomerⅠ(SSR) Sitafloxacin Impurity 23 sitafloxacin isomer I(SSR) Sitafloxacin Isomer Impurity 1 sitafloxacin hydrate Impurity 23 Sitafloxacin Isomer Impurity 3(SSR) 7-((R)-7-amino-5-azaspiro[2.4]heptan-5-yl) 7-[(7S)-7-Amino-5-azaspiro[2.4]hept-5-yl]-8-chloro-6-fluoro-1-[(1S,2R)-2-fluorocyclopropyl]-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid 7-((S)-7-amino-5-azaspiro[2.4]heptan-5-yl)-8-chloro-6-fluoro-1-((1S,2R)-2-fluorocyclopropyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid 3-Quinolinecarboxylic acid, 7-[(7S)-7-aMino-5-azaspiro[2.4]hept-5-yl]-8-chloro-6-fluoro-1-[(1S,2R)-2-fluorocyclopropyl]-1,4-dihydro-4-oxo-