3-Ethyl-2-(2-thioxo-3-ω-isopropoxycarbonylpentyl-4-oxothiazolidin-5-ylidene)-5-acetanilinomethylenethiazolidin-4-one 、
1-Ethyl-4-methyl-6-trifluoromethylsulfinylquinolinium toluenesulfonate 在
三乙胺 作用下,
以
吡啶 为溶剂,
反应 0.5h,
以50%的产率得到6-{(Z)-3-Ethyl-5-[2-[1-ethyl-6-trifluoromethanesulfinyl-1H-quinolin-(4Z)-ylidene]-eth-(E)-ylidene]-4,4'-dioxo-2'-thioxo-[2,5']bithiazolidinyliden-3'-yl}-hexanoic acid isopropyl ester