2-<4-(1-benzhydryl-4-piperidinyl)phenyl>ethyl alcohol   、                                                                                      
methyl 5-chlorocarbonyl-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carboxylate                                                                                                                                                                                              以
                                                                                         
氯仿   、                                                                                         
N,N-二甲基甲酰胺                                                                                  为溶剂,
                                                                                                                                                                                        以48%的产率得到5-O-[2-[4-(1-benzhydrylpiperidin-4-yl)phenyl]ethyl] 3-O-methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate