(3aR,3bS,5aS,6S,8aS,8bS,10aS)-6-tert-Butoxy-10a-hydroxymethyl-3a,5a-dimethyl-tetradecahydro-1-oxa-dicyclopenta[a,f]naphthalen-2-one 在
吡啶 、
4-二甲氨基吡啶 、
三氟化硼乙醚 作用下,
以
甲苯 为溶剂,
反应 5.0h,
生成 Acetic acid (3aR,3bS,5aS,6S,8aS,8bS,10aS)-6-hydroxy-3a,5a-dimethyl-2-oxo-tetradecahydro-1-oxa-dicyclopenta[a,f]naphthalen-10a-ylmethyl ester