(3,4-dihydro-6,7-dimethoxyisoquinolin-1-yl)acetonitrile 、
Ethyl 2-cyano-3-(4-piperidin-1-ylphenyl)prop-2-enoate 在
哌啶 作用下,
以
乙腈 为溶剂,
以85 %的产率得到9,10-dimethoxy-4-oxo-2-(4-(piperidin-1-yl)phenyl)-6,7-dihydro-4H-pyrido[2,1-a]isoquinoline-1,3-dicarbonitrile