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Crystal structure of a bioactive sesquiterpene isolated from Artemisia reticulata.

ABSTRACT: The title compound, C15H24O2 {systematic name: 1-[6-hy-droxy-7-(propan-2-yl)-4-methyl-idene-2,3,3a,4,5,6,7,7a-octa-hydro-1H-inden-1-yl]ethanone} was iso-la-ted from A. reticulata by column chromatography over silica gel by gradient solvent elution. The mol-ecule comprises a bi-cyclo-[4.3.0]nonane ring bearing acet-oxy, hy-droxy and isopropyl substituents, and an exocyclic double bond on the cyclo-hexane ring. In the bicyclic skeleton, the cyclo-hexane ring adopts a chair conformation ring and the cyclo-pentane ring is in an envelope conformation. In the crystal, mol-ecules are linked by O-H?O hydrogen bonds, forming chains along [010]. These chains are cross-linked by C-H?O hydrogen bonds.

SUBMITTER: Bauri AK

PROVIDER: S-EPMC4910329 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature

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Crystal structure of a bioactive sesquiterpene isolated from Artemisia reticulata.

Bauri A K AK Foro Sabine S Do Nhu Quynh Nguyen NQ

Acta crystallographica. Section E, Crystallographic communications 20160304 Pt 4

The title compound, C15H24O2 {systematic name: 1-[6-hy-droxy-7-(propan-2-yl)-4-methyl-idene-2,3,3a,4,5,6,7,7a-octa-hydro-1H-inden-1-yl]ethanone} was iso-la-ted from A. reticulata by column chromatography over silica gel by gradient solvent elution. The mol-ecule comprises a bi-cyclo-[4.3.0]nonane ring bearing acet-oxy, hy-droxy and isopropyl substituents, and an exocyclic double bond on the cyclo-hexane ring. In the bicyclic skeleton, the cyclo-hexane ring adopts a chair conformation ring and th ...[more]

PMID: 27375864

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