、
2,6-Dimethyl-4-methylcarbamoyl-1,4-dihydro-pyridine-3,5-dicarboxylic acid diethyl ester 在
2,4,5,6-四(9H-咔唑-9-基)异酞腈 、 copper(II) bis(trifluoromethanesulfonate) 作用下,
以
氯仿 为溶剂,
以73 %的产率得到2-(1-ethyl-3-methyl-2,4-dioxo-1,2,3,4-tetrahydroquinolin-3-yl)-N-methylacetamide