8-chloro-6-fluoro-1-[(1R,2S)-2-fluorocyclopropyl]-7-[(7S)-7-[({7-[(7S)-7-amino-5-azaspiro[2.4]heptan-5-yl]-8-chloro-6-fluoro-1-[(1R,2S)-2-fluorocyclopropyl]-4-oxoquinolin-3-yl}carbonyl)amino]-5-azaspiro[2.4]heptan-5-yl]-4-oxoquinoline-3-carboxylic acid hydrochloride