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6,8-Dihy-droxy-8a-methyl-3,5-dimethyl-idenedeca-hydro-naphtho-[2,3-b]furan-2(3H)-one.

ABSTRACT: The title compound, C(15)H(20)O(4), is a eudesmanolide isolated from the Chinese medicinal plant Carpesium tris-te Maxim. The mol-ecule contains three rings, viz. two fused six-membered rings in chair conformations and a five-membered ring in a flattened envelope conformation. In the crystal, two hy-droxy groups are involved in the formation of intra- and inter-molecular O-H?O hydrogen bonds. The H atoms in these groups are split, with site-occupation factors of 0.5. The inter-molecular hydrogen bonds link mol-ecules into chains propagating in [010].

SUBMITTER: Liu TT

PROVIDER: S-EPMC3515328 | biostudies-literature | 2012 Nov

REPOSITORIES: biostudies-literature

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6,8-Dihy-droxy-8a-methyl-3,5-dimethyl-idenedeca-hydro-naphtho-[2,3-b]furan-2(3H)-one.

Liu Ting-Ting TT Wu Hai-Bo HB Wang Wen-Shu WS

Acta crystallographica. Section E, Structure reports online 20121031 Pt 11

The title compound, C(15)H(20)O(4), is a eudesmanolide isolated from the Chinese medicinal plant Carpesium tris-te Maxim. The mol-ecule contains three rings, viz. two fused six-membered rings in chair conformations and a five-membered ring in a flattened envelope conformation. In the crystal, two hy-droxy groups are involved in the formation of intra- and inter-molecular O-H⋯O hydrogen bonds. The H atoms in these groups are split, with site-occupation factors of 0.5. The inter-molecular hydrogen ...[more]

PMID: 23284548

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