(1R,3aR,6aS)-1-[(E,3S)-3-[tert-butyl(dimethyl)silyl]oxyoct-1-enyl]-5',5'-dimethylspiro[1,3,3a,4,6,6a-hexahydropentalene-5,2'-1,3-dioxane]-2-one 在
sodium tetrahydroborate 作用下,
以
乙醇 为溶剂,
反应 7.0h,
以134 mg的产率得到(-)-(3a'S,4'R,6a'R)-4'-((S,E)-3-(tert-butyldimethylsilyloxy)oct-1-enyl)-5,5-dimethyldihydro-1'H-spiro[[1,3]dioxane-2,2'-pentalene]-5'-ol