巯基乙酸   、                                                                                      
2-{N'-[1-(4-Dimethylamino-phenyl)-meth-(E)-ylidene]-hydrazino}-4-(4-methoxy-phenyl)-1-methyl-6-oxo-1,6-dihydro-pyrimidine-5-carbonitrile                                                                                                                                                                                                                                                                      反应 12.0h,
                                                                                                                以39%的产率得到2-[2-(4-Dimethylamino-phenyl)-4-oxo-thiazolidin-3-ylamino]-4-(4-methoxy-phenyl)-1-methyl-6-oxo-1,6-dihydro-pyrimidine-5-carbonitrile