(-)-7-((1R*,2R*,6R*)-2-amino-8-azabicyclo(4.3.0.)-non-3-en-8-yl)-1-cyclopropyl-6,8-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid
(-)-7-((1r*,2r*,6r*)-2-amino-8-azabicyclo(4.3.0.)-non-3-en-8-yl)-1-cyclopropyl-6,8-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid