Date Published: April 01, 2011
Publisher: International Union of Crystallography
Author(s): Lei Zhang, Huan-Mei Guo, Wen-Juan Li, Yi-Jun Gao, Qing-Guo Meng.
In the title compound, C30H52O5, the three six-membered rings are in chair conformations, the five-membered ring is in an envelope form and the tetrahydrofuran ring has a conformation intermediate between half-chair and sofa. Intramolecular O—H⋯O hydrogen bonds may influence the conformation of the molecule. In the crystal, molecules are linked by intermolecular O—H⋯O hydrogen bonds, forming a three-dimensional network.
The title compound was prepared from 20(S)-protopanaxatriol which was degraded from Panax quinquefolium saponin. For background to and the medicinal properties of Panax ginseng and Panax quinquefolium, see: Shibata et al. (1985 ▶); Takano et al. (1999 ▶); Yu et al. (2007 ▶); Wang et al. (2010 ▶). For related structures, see: Shi et al. (1992 ▶); Meng et al. (2010 ▶).