3-Hydroxy-4-[(2-hydroxy-4,4-dimethyl-6-oxo-cyclohex-1-enyl)-(3-nitro-phenyl)-methyl]-1-p-tolyl-pyrrole-2,5-dione                                                                                                                                                              在
                                                                                                                                                                                 ammonium acetate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
溶剂黄146                                                                                  为溶剂,
                                                                                                                                                    反应 2.0h,
                                                                                                                以53%的产率得到6,6-Dimethyl-9-(3-nitro-phenyl)-2-p-tolyl-5,6,7,9-tetrahydro-4H-pyrrolo[3,4-b]quinoline-1,3,8-trione