7-(4-((1-tertbutyl-1H-tetrazol-5-yl)(phenyl)methyl)piperazin-1-yl)-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
7-(4-((1-tert-butyl-1H-tetrazol-5-yl)(4-isopropylphenyl)methyl)piperazin-1-yl)-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
7(4-((1-tert-butyl-1H-tetrazol-5-yl)(4-fluorophenyl)methyl)piperazin-1-yl)-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
7-(4-((1-cyclohexyl-1H-tetrazol-5-yl)(phenyl)methyl)piperazin-1-yl)-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
7-(4-((1-cyclohexyl-1H-tetrazol-5-yl)(pyridin-4-yl)methyl)piperazin-1-yl)-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid