1-(4-Bromo-phenyl)-4-hydroxy-5-oxo-2-phenyl-2,5-dihydro-1H-pyrrole-3-carboxylic acid (4-methoxy-phenyl)-amide   、                                                                                      
二苯基重氮甲烷                                                                                                                                                                                              以
                                                                                         
1,4-二氧六环                                                                                  为溶剂,
                                                                                                                                                    反应 24.0h,
                                                                                                                以69%的产率得到4-Benzhydryloxy-1-(4-bromo-phenyl)-5-oxo-2-phenyl-2,5-dihydro-1H-pyrrole-3-carboxylic acid (4-methoxy-phenyl)-amide