7-[3-(benzylideneamino)methyl-4-(2',3'-dimethxoybenzyloxyimino)pyrrolidin-1-yl]-1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid                                                                                                                                                                                              以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                                                        以79%的产率得到7-[3-aminomethyl-4-(2',3'-dimethxoybenzyloxyimino)pyrrolidin-1-yl]-1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naph-thyridine-3-carboxylic acid dimesylate