2-羟基-5-甲氧基苯甲醛   、                                                                                      
1-amino-3-[1-(2,5-dimethylthiophen-3-yl)ethylidene]-4-isopropylidenepyrrolidine-2,5-dione                                                                                                                                                                                              以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 26.0h,
                                                                                                                以80%的产率得到1-[(2-hydroxy-5-methoxybenzylidene)amino]-3-[1-(2,5-dimethylthiophen-3-yl)ethylidene]-4-isopropylidenepyrrolidine-2,5-dione