Tert-butyl 2-(4-aminobenzoyl)hydrazinecarboxylate   、                                                                                      
丁二酸单甲酯酰氯                                                                                                                                                              在
                                                                                                                                                                                 aminomethyl   、                                                                                                  
水   、                                                                                                  solid                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
吡啶                                                                                  为溶剂,
                                                                                                                                                    反应 19.0h,
                                                                                                                以The title compound (461 mg) was obtained as a white solid (63%) in 96.0% purity by HPLC (MaxPlot detection between 230 and 400 nm)的产率得到Tert-butyl 2-{4-[(4-methoxy-4-oxobutanoyl)amino]benzoyl}hydrazinecarboxylate