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Acta Cryst. (2013). E69, o484
[ doi:10.1107/S1600536813005734 ]


S. Pawar, K. Gopaul, T. Moodley, B. Omondi and N. Koorbanally

Abstract: In the biologically active title compound, C26H26O5, the pyran ring of the chromene unit adopts a half-chair conformation. The C=C double bond of the propenone unit exhibits a trans conformation and the carbonyl group is syn conformation to the double bond. The dihedral angle between the benzene ring and the benzopyranone moiety is 31.54 (4)°. The molecular structure is stabilized by an intramolecular C=O...H-O hydrogen bond.

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