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Planta Med 1999; 65(5): 470-472
DOI: 10.1055/s-2006-960817
Letter

© Georg Thieme Verlag Stuttgart · New York

A Xanthanolide Diol and a Dimeric Xanthanolide from Xanthium Species

Ahmed A. Ahmed1 , Ahmed A. Mahmoud1 , Ali A. El-Gamal2
  • 1Department of Chemistry, Faculty of Science, El-Minia University, El-Minia, Egypt
  • 2Faculty of Pharmacy, University of Mansoura, El-Mansoura, Egypt
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Publication History

1998

1999

Publication Date:
04 January 2007 (online)

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Abstract

Extracts of the aerial parts of Xanthium strumarium and fruit of X. pungens afforded a new Xanthanolide diol derivative, 11α,13-dihydroxyxanthatin and a new dimeric xanthanolide sesquiterpene lactone, pungiolide C, in addition to some known compounds. The structures of the new compounds were determined by spectroscopic methods particularly high resolution 1H-, 13C-NMR and 2D 1H-1H and 1H-13C COSY NMR analysis.