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Open AccessArticle10.1107/s1600536810046362

(3<i>R</i>,6<i>R</i>,12<i>R</i>,20<i>S</i>,24<i>S</i>)-20,24-Epoxydammarane-3,6,12,25-tetraol dihydrate

Qingguo Meng,Lian-Dong Liu,Huan-Mei Guo,Yi Bi,Liang Wang-2010-11-16-Acta Crystallographica Section E Structure Reports Online

TL;DRAbstract

The title compound, C(30)H(52)O(5)·2H(2)O, 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 tetra-hydro-furan ring has a conformation inter-mediate between half-chair and envelope. In the crystal, inter-molecular O-H⋯O hydrogen bonds link mol-ecules into a three-dimensional network. Intra-molecular O-H⋯O hydrogen bonds also occur.

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The title compound, C(30)H(52)O(5)·2H(2)O, 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 tetra-hydro-furan ring has a conformation inter-mediate between half-chair and envelope. In the crystal, inter-molecular O-H⋯O hydrogen bonds link mol-ecules into a three-dimensional network. Intra-molecular O-H⋯O hydrogen bonds also occur.

Keywords

Ring (chemistry)Hydrogen bondChemistryEnvelope (radar)FuranCrystal (programming language)Cyclohexane conformationCrystallography

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