Abstract
The title compound, C30H52O5·2H2O, was degraded from pseudoginsenoside F11 which was extracted and seperated from Panax quinquefolium saponin. The three six-membered rings are in chair conformations. The five-membered ring is in an envelope conformation and the tetrahydrofuran ring has a conformation intermediate between half-chair and envelope. In the crystal, intermolecular O—H⋯O hydrogen bonds link molecules into a three-dimensional network. Intramolecular O—H⋯O hydrogen bonds also occur.
Highlights
The title compound, C30H52O5Á2H2O, was degraded from pseudoginsenoside F11 which was extracted and seperated from Panax quinquefolium saponin
The three six-membered rings are in chair conformations
The five-membered ring is in an envelope conformation and the tetrahydrofuran ring has a conformation intermediate between half-chair and envelope
Summary
Key indicators: single-crystal X-ray study; T = 298 K; mean (C–C) = 0.004 A; R factor = 0.042; wR factor = 0.108; data-to-parameter ratio = 8.9. The title compound, C30H52O5Á2H2O, was degraded from pseudoginsenoside F11 which was extracted and seperated from Panax quinquefolium saponin. The three six-membered rings are in chair conformations. The five-membered ring is in an envelope conformation and the tetrahydrofuran ring has a conformation intermediate between half-chair and envelope. Intermolecular O—HÁ Á ÁO hydrogen bonds link molecules into a three-dimensional network. Intramolecular O—HÁ Á ÁO hydrogen bonds occur. Related literature For background and the medicinal properties of Panax ginseng and Panax quinquefolium, see: Iljin et al (1982); Shi et al (1992); Shibata et al (1985); Takano et al (1999); Yu et al (2007).
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