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(3R,4S,5S,8S,10R,13R)-3-Hy-droxy-kaura-9(11),16-dien-18-oic acid.

Beattie KD, Bhadbhade MM, Craig DC, Leach DN - Acta Crystallogr Sect E Struct Rep Online (2012)

Bottom Line: Braun & Asch. (Asteraceae).The enanti-opure compound, a diterpene with a carbon skeleton, is composed of three six- and one five-membered rings in chair, twist-boat, half-chair and envelope conformations, respectively.The absolute configuration of the compound was assigned on the basis of optical rotation measurements.

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ABSTRACT
The title compound, C(20)H(28)O(3), was isolated during our investigation into the chemical composition and pharmacological activity of Centipeda cunninghamii (DC.) A. Braun & Asch. (Asteraceae). The enanti-opure compound, a diterpene with a carbon skeleton, is composed of three six- and one five-membered rings in chair, twist-boat, half-chair and envelope conformations, respectively. Each mol-ecule makes one intra- and one inter-molecular O-H⋯O hydrogen bond in the crystal lattice, forming hydrogen-bonded chains along [010]. The absolute configuration of the compound was assigned on the basis of optical rotation measurements.

No MeSH data available.


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Packing diagram of (I) viewed down the a axis depicting intra and inter molecular O—H···O hydrogen bonding.
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Fap2: Packing diagram of (I) viewed down the a axis depicting intra and inter molecular O—H···O hydrogen bonding.


(3R,4S,5S,8S,10R,13R)-3-Hy-droxy-kaura-9(11),16-dien-18-oic acid.

Beattie KD, Bhadbhade MM, Craig DC, Leach DN - Acta Crystallogr Sect E Struct Rep Online (2012)

Packing diagram of (I) viewed down the a axis depicting intra and inter molecular O—H···O hydrogen bonding.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3275267&req=5

Fap2: Packing diagram of (I) viewed down the a axis depicting intra and inter molecular O—H···O hydrogen bonding.
Bottom Line: Braun & Asch. (Asteraceae).The enanti-opure compound, a diterpene with a carbon skeleton, is composed of three six- and one five-membered rings in chair, twist-boat, half-chair and envelope conformations, respectively.The absolute configuration of the compound was assigned on the basis of optical rotation measurements.

View Article: PubMed Central - HTML - PubMed

ABSTRACT
The title compound, C(20)H(28)O(3), was isolated during our investigation into the chemical composition and pharmacological activity of Centipeda cunninghamii (DC.) A. Braun & Asch. (Asteraceae). The enanti-opure compound, a diterpene with a carbon skeleton, is composed of three six- and one five-membered rings in chair, twist-boat, half-chair and envelope conformations, respectively. Each mol-ecule makes one intra- and one inter-molecular O-H⋯O hydrogen bond in the crystal lattice, forming hydrogen-bonded chains along [010]. The absolute configuration of the compound was assigned on the basis of optical rotation measurements.

No MeSH data available.


Related in: MedlinePlus