Crystal structure of (1R3aR7aR)-1-{(S)-1-(2R5S)-5-(3-hy­droxy­pentan-3-yl)tetra­hydro­furan-2-yleth­yl}-7a-methyl-233a45677a-octa­hydro-1H-inden-4-one

摘要

The title compound, C21H36O3, contains an oxolane ring, and six defined stereocentres and may serve as a useful synthon for the synthesis of calcitriol analogues. The configurations of the chiral C atoms of the side chain were unambiguously established in the refinement. In the crystal, C—H⋯O and extremely weak O—H⋯O hydrogen bonds arising from the sterically hindered alcohol group link the mol­ecules into a three-dimensional network.