<(7R,8S,9R)-9-acetoxy-3',4,5'-trimethoxy-7,8-dimethyl-2,3-methylenedioxy-6,7,8,9-tetrahydrospiro<5H-benzocycloheptene-5,1'-cyclohexa-2',5'-dien>-4'-one> 在
sodium hydroxide 作用下,
以
乙醇 为溶剂,
反应 0.5h,
生成
<(7R,8S,9R)-9-hydroxy-3',4,5'-trimethoxy-7,8-dimethyl-2,3-methylenedioxy-6,7,8,9-tetrahydrospiro<5H-benzocycloheptene-5,1'-cyclohexa-2',5'-dien>-4'-one>