(2'S)-3-(1',4'-dioxa-spiro[4.5]dec-2'-yl)-prop-2-en-1-ol

(2S,3R,4R)-2,3-epoxy-4,5-(cyclohexylidenedioxy)pentan-1-ol

(2R,3R,4R)-1-[(tert-butyldiphenylsilyl)oxy]-2-cyano-4,5-(cyclohexylidenedioxy)-3-hydroxypentane

(2R,3R,4R)-1-[(tert-butyldiphenylsilyl)oxy]-2-cyano-3,4-dihydroxy-5-[(p-toluenesulfonyl)oxy]pentane

(2S,4aS,10aR)-6-acetyl-7-isopropyl-1,1,4a-trimethyl-1,2,3,4,4a,9,10,10a-octahydrophenanthren-2-yl acetate