α,α-dimethyl-4-(3,4,8,9-tetrahydro-6-methoxy-3,3,8,8-tetramethylfuro[2,3-h]isoquinolin-1-yl)benzeneacetamide 、
碘甲烷 以
6-Butoxy-3,4,8,9-tetrahydro-3,3,8,8-tetramethyl-1-phenylfuro[2,3-h]isoquinoline 为溶剂,
以31%的产率得到N,α,α-Trimethyl-4-(3,4,8,9-tetrahydro-6-methoxy-3,3,8,8-tetramethylfuro[2,3-h]isoquinolin-1-yl)benzeneacetamide