rac-(4R,4aS,5S,7aR,12bS)-5-butyl-9-methoxy-3-methyl-4a-((trimethylsilyl)oxy)-2,3,4,4a,5,6-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7(7aH)-one 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
以96%的产率得到rac-(4R,4aS,5S,7aR,12bS)-5-butyl-4a-hydroxy-9-methoxy-3-methyl-2,3,4,4a,5,6-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7(7aH)-one