ethyl 7-(3-amino-1-pyrrolidinyl)-6-fluoro-1,4-dihydro-4-oxo-1-(2-thiazolyl)methyl-1,8-naphthyridine-3-carboxylate                                                                                                                                                              在
                                                                                                                                                                                 10percent aq. HCl                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                以60%的产率得到7-(3-Amino-pyrrolidin-1-yl)-6-fluoro-4-oxo-1-thiazol-2-ylmethyl-1,4-dihydro-[1,8]naphthyridine-3-carboxylic acid; hydrochloride