Acetic acid (1R,3S,5R,6R,8S,9S,10S,13R,14S,17R)-17-((R)-1,5-dimethyl-hexyl)-5-hydroxy-10,13-dimethyl-1-(2-trimethylsilanyl-ethoxymethoxy)-3-(2-trimethylsilanyl-ethoxymethoxymethyl)-hexadecahydro-cyclopenta[a]phenanthren-6-yl ester 在
二异丁基氢化铝 作用下,
以
四氢呋喃 为溶剂,
反应 2.0h,
以84.5%的产率得到1β-SEMO-3β-SEMOCH2-cholestan-5α,6β-diol