7-<(1R,4R,6R)-5-(phenylmethyl)-6-methyl-2,5-diazabicyclo<2.2.1>heptan-2-yl>-1-(1,1-dimethylethyl)-6-fluoro-1,4-dihydro-4-oxo-1,8-napthyridine-3-carboxylic acid ethyl ester                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
盐酸   、                                                                                                  
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 2.0h,
                                                                                                                以99.3%的产率得到7-<(1R,4R,6R)-6-methyl-2,5-diazabicyclo<2.2.1>heptan-2-yl>-1-(1,1-dimethylethyl)-6-fluoro-1,4-dihydro-4-oxo-1,8-napthyridine-3-carboxylic acid ethyl ester hydrochloride