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(3R,6R,12R,20S,24S)-20,24-Ep-oxy-dammarane-3,6,12,25-tetraol dihydrate.

ABSTRACT: 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.

SUBMITTER: Meng QG

PROVIDER: S-EPMC3011509 | biostudies-literature | 2010 Nov

REPOSITORIES: biostudies-literature

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(3R,6R,12R,20S,24S)-20,24-Ep-oxy-dammarane-3,6,12,25-tetraol dihydrate.

Meng Qing-Guo QG Liu Lian-Dong LD Guo Huan-Mei HM Bi Yi Y Wang Liang L

Acta crystallographica. Section E, Structure reports online 20101117 Pt 12

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 a ...[more]

PMID: 21589503

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

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(1S,3R,8R,9R,10S)-2,2-Dibromo-3,7,7,10-tetra-methyl-9β,10β-ep-oxy-3,7,7,10-tetra-methyl-tricyclo-[6.4.0.0(1,3)]dodeca-ne.

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Ep-oxy-cytochalasin H methanol solvate.

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