Acta Cryst. (2006). E62, o306-o308  [ doi:10.1107/S1600536805039693 ]

7-Acetyl-12-methoxyhorminone from Jamaican Hyptis verticillata (Labiatae)

M. Bakir, D. A. C. Biggs, A. Lough, W. H. Mulder, W. Reynolds and R. B. Porter

Abstract: The title compound, a horminone derivative with the systematic name 7-acetyl-12-methoxyabieta-8,12-diene-11,14-dione, C₂₃H₃₂O₅, was isolated from Hyptis verticillata from St. Mary, Jamaica. In the molecule, there are three fused six-membered rings, namely a substituted quinone ring in a slight boat conformation fused to a central acetyl- and methyl-substituted cyclohexene ring in a half-chair conformation, which is trans-fused to a dimethyl-substituted cyclohexane ring in a chair conformation. A single weak intramolecular C-HO hydrogen bond links molecules into extended chains in the b axis direction.

Online 21 December 2005

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