Acta Cryst. (2009). E65, o2387  [ doi:10.1107/S1600536809034485 ]

9-Methoxy-6a,11a-dimethyl-6a,11a-dihydro-6H-1-benzofuro[3,2-c]chromen-3-ol from Dalbergia oliveri

S. Deesamer, W. Chavasiri, N. Chaichit, N. Muangsin and U. Kokpol

Abstract: The title compound, commonly known as (+)-(6aS,11aS)-medicarpin, C₁₆H₁₄O₄, was isolated from Dalbergia oliveri and displays a rigid molecule consisting of four fused rings. The benzofuran system is inclined at an angle of 76.49 (2)° with respect to the chroman unit. The compound exists as a polymeric chain arising from intermolecular O-HO bonding.

Online 9 September 2009

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