Acetic acid (1R,5R,6R,8S,9S,10S,13R,14S,17R)-17-((R)-1,5-dimethyl-hexyl)-3-formyl-5-hydroxy-10,13-dimethyl-1-(2-trimethylsilanyl-ethoxymethoxy)-hexadecahydro-cyclopenta[a]phenanthren-6-yl ester 在
sodium tetrahydroborate 作用下,
以
四氢呋喃 、
乙醇 为溶剂,
反应 0.5h,
以63.2%的产率得到1β-SEMO-6β-acetoxy-3β-hydroxymethylcholestan-5α-ol