7-[(1S,2R,5S,6S)-6-Amino-2-methyl-3-azabicyclo[3.1.0]hex-3-yl]-1-(2,4-difluorophenyl)-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid AIDS-185008 AIDS185008