(23 R,231 S,25 S)-231,26-Ep-oxy-23-ethyl-furost-20(22)-en-3β-ol

IUCrdata. 2023 Apr 21;8(Pt 4):x230344. doi: 10.1107/S2414314623003449. eCollection 2023 Apr.

Abstract

The title compound, C29H46O3, is a steroid synthesized through a rearrangement of a sarsasapogenin derivative in acidic medium. The newly formed ring F is a tetra-hydro-2H-pyran heterocycle substituted by two methyl groups placed in equatorial positions. This ring displays a chair conformation, while di-hydro-furan ring E, to which it is bonded, has an envelope conformation. The mol-ecules are associated by weak O-H⋯O hydrogen bonds to form chains running in the [101] direction in the crystal.

Keywords: crystal structure; hydrogen bond; rearrangement reaction; sarsasapogenin; tetra­hydro­pyran.

Grants and funding

Funding for this research was provided by: Consejo Nacional de Ciencia y Tecnología (grant Nos. 168178 and 171508).