New antifungal flavone glycoside from Butea monosperma O. Kuntze

Abstract

A new bioactive flavone glycoside was isolated from the methanol soluble fraction of the flowers of Butea monosperma O. Kuntze, which was identified as 5,7-dihydroxy-3,6,4′-trimethoxyflavone-7-O-α-L-xylopyranosyl-(1 → 3)-O-α-L-arabinopyranosyl-(1 → 4)-O-β-D-galactopyranoside (1) by several colour reactions, chemical degradations and spectral analysis. The compound 1 shows antimicrobial activity against various fungal species.

Keywords::

• Butea monosperma O. Kuntze
• new flavone glycoside
• antifungal activity

Acknowledgements

The authors are grateful to the Director, Central Drug Research Institute, Lucknow for providing the spectral analysis, Prof. V.K. Saxena, Head, Department of Chemistry, Dr H.S. Gour University, Sagar, M.P. India for providing laboratory facilities and Dr Archana Mehta, Department of Botany, Dr H.S. Gour University, Sagar (M.P.) for providing facilities for microbial activity.