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