(1'R,4R,4'R,4aS,7S,7'R,7aR,12bS)-3-benzyl-9-methoxyspiro[2,4,5,6,7a,13-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinoline-7,3'-2,5,8-trioxa-10-azatricyclo[5.2.1.04,10]decane]-4a-ol 在
丙烷-1-硫醇 、
potassium tert-butylate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以71%的产率得到(1'R,4R,4'R,4aS,7S,7'R,7aR,12bS)-3-benzylspiro[2,4,5,6,7a,13-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinoline-7,3'-2,5,8-trioxa-10-azatricyclo[5.2.1.04,10]decane]-4a,9-diol