(-)-7(3-(R)-amino-2-(S)-methyl-1-azetidinyl)-1-(2,4- difluorophenyl)-1,4-dihydro-6-fluoro-4-oxo-3-quinolinecarboxylic acid tosylate
(-)-7(3-(r)-amino-2-(s)-methyl-1-azetidinyl)-1-(2,4- difluorophenyl)-1,4-dihydro-6-fluoro-4-oxo-3-quinolinecarboxylic acid tosylate