(3aR,4r,4aS,7aS,8r,8aR)-8-((tert-butyldimethylsilyl)oxy)-2,2,6,6-tetramethylhexahydrobenzo[1,2-d:4,5-d']bis([1,3]dioxole)-4-yl benzoate 、 [(1S,2S,6R,7S,8S,9R)-8-[tert-butyl(dimethyl)silyl]oxy-4,4,11,11-tetramethyl-3,5,10,12-tetraoxatricyclo[7.3.0.02,6]dodecan-7-yl] benzoate 在
sodium methylate 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 3.0h,
生成
(3aR,4s,4aS,7aR,8r,8aS)-8-((tert-butyldimethylsilyl)oxy)-2,2,6,6-tetramethylhexahydrobenzo[1,2-d:4,5-d']bis([1,3]dioxole)-4-ol 、 (1S,2R,6S,7S,8R,9R)-8-[tert-butyl(dimethyl)silyl]oxy-4,4,11,11-tetramethyl-3,5,10,12-tetraoxatricyclo[7.3.0.02,6]dodecan-7-ol