methyl 6-(3-chloro-2-fluorobenzyl)-5-fluoro-1-(4-fluorobenzyl)-4-oxo-1,4-dihydroquinoline-3-carboxylate

6-(3-chloro-2-fluorobenzyl)-5-fluoro-1-(2-fluorobenzyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid