866453-60-3

4-[[(6S)-6-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-1,3,4,5,6,7-hexahydro-2,2-dioxidobenzo[c]thien-1-yl]methylene]octahydro-α,7a-dimethyl-1H-indene-1-acetaldehyde is an intermediate in the synthesis of Secalciferol (S211500), metabolite of Vitamin D, a possible anti-inflammatory steroid.