1-Cyclopropyl-6,7,8-trifluoro-5-chloro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid C??? ??, ??, ??

1-Cyclopropyl-6,7,8-trifluoro-5-chloro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid ?? ?? ? ???

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1-Cyclopropyl-6,7,8-trifluoro-5-chloro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid ?? ??