4-氯苯甲醛   、                                                                                      4-Hydrazino-6-methyl-2-oxo-1,2-dihydro-pyrimidine-5-carboxylic acid (2-hydroxy-1-hydroxymethyl-1-methyl-ethyl)-amide                                                                                                                                                                                              以
                                                                                         
乙醇   、                                                                                         
二甲基亚砜                                                                                  为溶剂,
                                                                                                                                                    反应 0.17h,
                                                                                                                以62%的产率得到5-(1,3-Dihydroxy-2-methylpropyl-2)carbamoyl-4-(4-chlorobenzylidene)hydrazino-6-methyl-2-oxo-1,2-dihydropyrimidine