三乙基氯硅烷 、 (3aR,5aR,6S,7Z,9R,10aR)-6-((2S,3R,4S,5R)-tetrahydro-3,4,5-trihydroxy-2H-pyran-2-yloxy)-2,3,3a,4,5,5a,6,9,10,10a-decahydro-8-(hydroxymethyl)-1-isopropyl-3a,5a-dimethylcyclohepta[e]inden-9-yl benzoate 在
TEA 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以44%的产率得到(3aR,5aR,6S,9R,10aR,Z)-6-((2S,3R,4S,5R)-4,5-dihydroxy-3-triethylsilyloxy-tetrahydro-2H-pyran-2-yloxy)-8-((triethylsilyloxy)methyl)-1-isopropyl-3a,5a-dimethyl-2,3,3a,4,5,5a,6,9,10,10a-decahydrocyclohepta[e]inden-9-yl benzoate