2,10-diacetyl-6-[(4-chloro-phenyl)-hydrazono]-3,9-bis-(4-hydroxy-3-methoxy-phenyl)-5,7-dioxo-undecanedioic acid diethyl ester                                                                                                                                                              在
                                                                                                                                                                                 ammonium acetate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
溶剂黄146                                                                                  为溶剂,
                                                                                                                                                                                        以39%的产率得到ethyl-6-{2-(4-chloro-phenyl)hydrazono}[4-(4-hydroxy-3-methoxy-phenyl)-6-1,4-dihydropyridin-2-yl]-4-(4-hydroxy-3-methoxy-phenyl)-2-methyl-1,4-dihydropyridine-3-carboxylate