(5Z,7E)-(1S,3R,23R)-1,3-bis[(t-butyldimethylsilyl)oxy]-26,26,26,27,27,27-hexafluoro-25-methoxymethoxy-9,10-seco-5,7,10(19)-cholestatrien-23-ol

(5Z,7E)-(1S,3R,23R)-1,3-bis[(t-butyldimethylsilyl)oxy]-26,26,26,27,27,27-hexafluoro-25-methoxymethoxy-23-(methylthiothiocarbonyloxy)-9,10-seco-5,7,10(19)-cholestatriene