(3R,6R,12R,20S,24R)-20,24-Ep-oxy-dammarane-3,6,12,25-tetra-ol

Acta Crystallogr Sect E Struct Rep Online. 2011 Apr 1;67(Pt 4):o846. doi: 10.1107/S1600536811008609. Epub 2011 Mar 12.

Abstract

In the title compound, C(30)H(52)O(5), the three six-membered rings are in chair conformations, the five-membered ring is in an envelope form and the tetra-hydro-furan ring has a conformation inter-mediate between half-chair and sofa. Intra-molecular O-H⋯O hydrogen bonds may influence the conformation of the mol-ecule. In the crystal, mol-ecules are linked by inter-molecular O-H⋯O hydrogen bonds, forming a three-dimensional network.