Methyl 1-(2,4-dimethoxybenzyl)-5-ethyl-6-(1-methyl-2-(2-(methylsulfonyloxy)ethyl)-1H-indol-5-yl)-2-oxo-1,2-dihydropyridine-3-carboxylate 、
四氢吡咯 、
碳酸氢钠 在
二氯甲烷 、
氯化钠 、
Sodium sulfate-III 作用下,
以
乙腈 为溶剂,
反应 1.5h,
以to afford methyl 1-(2,4-dimethoxybenzyl)-5-ethyl-6-(1-methyl-2-(2-(pyrrolidin-1-yl)ethyl)-1H-indol-5-yl)-2-oxo-1,2-dihydropyridine-3-carboxylate (0.140 g) in 62% yield的产率得到methyl 1-(2,4-dimethoxybenzyl)-5-ethyl-6-(1-methyl-2-(2-(pyrrolidin-1-yl)ethyl)-1H-indol-5-yl)-2-oxo-1,2-dihydropyridine-3-carboxylate