(3aS,6aS,7S,8S,10R,11S,11aS,11bS)-7,11-Bis-benzyloxy-8-but-3-enyl-10-(tert-butyl-dimethyl-silanyloxy)-2,2,9,9-tetramethyl-6-methylene-dodecahydro-1,3-dioxa-cycloocta[de]naphthalen-8-ol 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
以95%的产率得到(3aS,6aS,7S,8S,10R,11R,11aS,11bS)-7,11-Bis-benzyloxy-8-but-3-enyl-2,2,9,9-tetramethyl-6-methylene-dodecahydro-1,3-dioxa-cycloocta[de]naphthalene-8,10-diol