(RS,RS,RS)-[3-(5-chloro-pentanoylamino)-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-2H-pyrido[2,1-a]isoquinolin-2-yl]-carbamic acid tert-butyl ester 在
sodium hydride 、 sodium iodide 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 2.0h,
以68%的产率得到(RS,RS,RS)-[9,10-dimethoxy-3-(2-oxo-piperidin-1-yl)-1,3,4,6,7,11b-hexahydro-2H-pyrido[2,1-a]isoquinolin-2-yl]-carbamic acid tert-butyl ester