(+-)-7-(3-Amino-1-pyrrolidinyl)-1-(2,4-difluorophenyl)-6-fluoro-4-quinolone-3-carboxylic acid 102856-07-5 3-Quinolinecarboxylic acid, 1,4-dihydro-7-(3-amino-1-pyrrolidinyl)-1-(2,4-difluorophenyl)-6-fluoro-4-oxo-, (+-)- BRN 4276829