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1?,6?,7?,14?,15?-Penta-hydr-oxy-7?,20-ep-oxy-ent-kaur-16-ene.

ABSTRACT: The title compound, enmenol, C(20)H(30)O(6), a natural ent-kaurane diterpenoid, comprises five fused rings, four of which are six-membered. Cyclo-hexane ring A adopts a chair conformation, rings B and C adopt boat conformations, while ring D has an envelope conformation, and two intramolecular O-H?O interactions occur. In the crystal, inter-molecular O-H?O hydrogen bonds generate a two dimensional network.

SUBMITTER: Feng C

PROVIDER: S-EPMC2980239 | biostudies-literature | 2009 Dec

REPOSITORIES: biostudies-literature

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1α,6β,7β,14β,15β-Penta-hydr-oxy-7α,20-ep-oxy-ent-kaur-16-ene.

Feng Chuang C Yan Fu-Lin FL Di Xue-Mei XM Sun Peng-Li PL

Acta crystallographica. Section E, Structure reports online 20091212 Pt 1

The title compound, enmenol, C(20)H(30)O(6), a natural ent-kaurane diterpenoid, comprises five fused rings, four of which are six-membered. Cyclo-hexane ring A adopts a chair conformation, rings B and C adopt boat conformations, while ring D has an envelope conformation, and two intramolecular O-H⋯O interactions occur. In the crystal, inter-molecular O-H⋯O hydrogen bonds generate a two dimensional network. ...[more]

PMID: 21579994

Similar Datasets

1α,6β,7β,11α,15β-Penta-hydr-oxy-7α,20-ep-oxy-ent-kaur-16-ene.

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6?,15?-Diacet-oxy-1?,7?,13?-trihydr-oxy-7?,20-ep-oxy-ent-kaur-16-ene.

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1?,11?,15?-Triacet-oxy-7?-hydroxy-7?,20-ep-oxy-ent-kaur-16-en-6-one.

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3?-Hydr-oxy-ent-atis-16-en-14-one.

Project description:The title compound, C(20)H(30)O(2), is an ent-atisane diterpenoid which was isolated from the roots of Euphorbia kansuensis. The mol-ecule contains five six-membered rings, among which three six-membered rings of the bicyclo-[2.2.2]octane unit adopt boat conformations and two cyclo-hexane rings adopt chair conformations. In the crystal structure, mol-ecules are connected by inter-molecular O-H?O hydrogen bonds, forming zigzag chains propagating parallel to [001].

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16?,17?-Ep-oxy-5?-hydr-oxy-6?-nitrooxy-20-oxopregnan-3?-yl acetate.

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4,5,7,8,17-Penta-hydr-oxy-14,18-dimethyl-6-methyl-ene-3,10-dioxapenta-cyclo-[9.8.0.0.0.0]nona-dec-14-ene-9,16-dione methanol solvate dihydrate.

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10-Hydr-oxy-2-aza-penta-cyclo-[10.8.0.0.0.0]icosa-1(12),4(9),5,7,13,15(20),16,18-octa-ene-3,11-dione.

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1?,15?-Dihy-droxy-16?,17-ep-oxy-pregn-4-ene-3,20-dione.

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