乙酸酐   、                                                                                      
4-[3-(3-fluoro-4-hydrazinocarbonylphenoxy)propyl]piperidine-1-carboxylic acid isopropyl ester                                                                                                                                                                                              以
                                                                                         
吡啶                                                                                  为溶剂,
                                                                                                                                                    反应 72.0h,
                                                                                                                以to afford crude 4-{3-[4-(N′-acetyl-hydrazinocarbonyl)-3-fluorophenoxy]propyl}piperidine-1-carboxylic acid isopropyl ester which的产率得到4-{3-[4-(N'-acetyl-hydrazinocarbonyl)-3-fluorophenoxy]propyl}piperidine-1-carboxylic acid isopropyl ester