1,6-dimethyl-2-oxo-1,2-dihydropyridin-4-yl trifluoromethanesulfonate 、
3-Aethyl-indolin 在
氩 、
丙酮 作用下,
反应 3.0h,
以to give 1,6-dimethyl-4-(3-ethylindolin-1-yl)-2-pyridone as the hemi-trifluoromethylsulphonate salt的产率得到1,6-dimethyl-4-(3-ethylindolin-1-yl)-2-pyridone