2-(3 pyrrolidinyl)benzenemethanamine 、
1-(2,4-difluorophenyl)-6,7-difluoro-1,4-dihydro-5-methyl-4-oxo-3-quinolinecarboxylic acid 以provided the title compound (0.40 g, 72%) as a beige solid, mp 283°-285° C. (dec)的产率得到7-[3-[2-(Aminomethyl)phenyl]-1-pyrrolidinyl]-1-(2,4-difluorophenyl)-6-fluoro-1,4-dihydro-5-methyl-4-oxo-3-quinolinecarboxylic acid