(E)-diethyl 2,6-dimethyl-4-(4-(2-oxo-2-(2-(thiophen-3-ylmethylene)hydrazinyl)ethoxy)phenyl)-1,4-dihydropyridine-3,5-dicarboxylate 、
巯基乙酸 在
zinc(II) chloride 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以52%的产率得到diethyl 2,6-dimethyl-4-(4-(2-oxo-2-(4-oxo-2-(thiophen-3-yl)thiazolidin-3-ylamino)ethoxy)phenyl)-1,4-dihydropyridine-3,5-dicarboxylate