四甲基甲烷二胺 、 2-(3'-cyano-4',6'-dimethylpyridyl-2')-thiomethyl-3-ethoxycarbonyl-5-hydroxybenzofuran 以
1,4-二氧六环 为溶剂,
反应 3.0h,
以43.5%的产率得到2-(3-Cyano-4,6-dimethyl-pyridin-2-ylsulfanylmethyl)-4-dimethylaminomethyl-5-hydroxy-benzofuran-3-carboxylic acid ethyl ester