3-Ethyl-9,10-dimethoxy-1,6,7,11b-tetrahydro-pyrido[2,1-a]isoquinolin-4-one 在
sodium hydride 作用下,
以
四氢呋喃 为溶剂,
生成 (2S,11bS)-2-(6,7-Dimethoxy-3,4-dihydro-isoquinolin-1-ylmethyl)-3-ethyl-9,10-dimethoxy-1,2,3,6,7,11b-hexahydro-pyrido[2,1-a]isoquinolin-4-one