Antioxidant benzophenones and xanthones from the root bark of Garcinia smeathmannii

  • Alain Meli Lannang Department of Organic Chemistry, Faculty of Sciences, University of Yaounde I, P.O. Box 812 Cameroon
  • Justin Komguem Department of Organic Chemistry, Faculty of Sciences, University of Yaounde I, P.O. Box 812 Cameroon
  • Fernande Ngounou Ngninzeko Department of Organic Chemistry, Faculty of Sciences, University of Yaounde I, P.O. Box 812 Cameroon
  • Jean Gustave Tangmouo Department of Organic Chemistry, Faculty of Sciences, University of Yaounde I, P.O. Box 812 Cameroon
  • David Lontsi Department of Organic Chemistry, Faculty of Sciences, University of Yaounde I, P.O. Box 812 Cameroon
  • Asma Ajaz H.E.J. Research Institute of Chemistry, International Center for Chemical Sciences, University of Karachi, Karachi-75270, Pakistan
  • Muhammad Iqbal Choudhary H.E.J. Research Institute of Chemistry, International Center for Chemical Sciences, University of Karachi, Karachi-75270, Pakistan
  • Beiban Luc Sondengam Department of Organic Chemistry, Faculty of Sciences, University of Yaounde I, P.O. Box 812 Cameroon
  • Atta -ur-Rahman H.E.J. Research Institute of Chemistry, International Center for Chemical Sciences, University of Karachi, Karachi-75270, Pakistan
DOI: 10.4314/bcse.v20i2.61409
Keywords: Garcinia smeathmanii, Xanthone, Antioxidant

Abstract

A new geranylated xanthone (1) was isolated from the root bark extract of Garcinia smeathmannii Oliver along with known guttiferone I, isoxanthochymol, smeathxanthones A and B, and triacontanyl caffeate. The structures of these compounds were elucidated by spectral analysis and by comparison with the reported data. These compounds showed significant antioxidant DPPH radical scavenging activities. 

 

KEY WORDS: Garcinia smeathmanii, Xanthone, Antioxidant

 

 

Bull. Chem. Soc. Ethiop. 2006, 20(2), 247-252.

Issue
Vol. 20 No. 2 (2006)
Section
Articles

Journal Identifiers


eISSN: 1726-801X
print ISSN: 1011-3924