2-{4-[6-(tert-Butyl-dimethyl-silanyloxy)-2,2-dioxo-2,3,4,5,6,7-hexahydro-1H-2l6-benzo[c]thiophen-1-ylmethylene]-7a-methyl-octahydro-inden-1-yl}-propan-1-ol

(βS,1R,3aS,4E,7aR)-4-[[(6S)-6-[[(tert-Butyldimethylsilyloxy]-1,3,4,5,6,7-hexahydro-2,2-dioxidobenzo[c]thien-1-yl]methylene]octahydro-β,7a-dimethyl-1H-Indene-1-ethanol is an intermediate in the synthesis of Secalciferol (S211500), metabolite of Vitamin D, a possible anti-inflammatory steroid.