(2R,6S)-6-((3S,8S,9S,10R,13S,14S,16S,17R)-10,13-Dimethyl-16-((methylsulfonyl)oxy)-3-(pivaloyloxy)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-methylheptyl Pivalate is an intermediate in the synthesis of (25R)-26-Hydroxy-cholest-4-en-3-one (H917940), which is an oxygenated sterol which has many important biological activities. (25R)-26-Hydroxy-cholest-4-en-3-one has been used as a reactant for the synthesis of other sterols.