氯乙酸乙酯 、 N-methylmorpholinium 5-[2-cyanoethyl-1-(4-hydroxy-3-methoxyphenyl)-2-thiocarbamoyl]-2,2-dimethyl-6-oxo-1,3-dioxa-4-cyclohexen-4-olate 以
乙醇 为溶剂,
反应 0.03h,
以77%的产率得到5-cyano-6-ethoxycarbonylmethylthio-4-(4-hydroxy-3-methoxyphenyl)-1,2,3,4-tetrahydropyridin-2-one