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Planta Med 1998; 64(8): 724-727
DOI: 10.1055/s-2006-957566
Papers
Natural Product Chemistry
© Georg Thieme Verlag Stuttgart · New York

Xanthanolides and Xanthane Epoxide Derivatives from Xanthium strumarium

Ahmed A. Mahmoud
  • Department of Chemistry, Faculty of Science, El-Minia University, El-Minia, Egypt
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Publikationsverlauf

1998

1998

Publikationsdatum:
04. Januar 2007 (online)

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Abstract

From the aerial parts of Xanthium strumarium, three new xanthanolide and xanthane-type sesquiterpenoids, 11α,13-dihydroxanthatin (2), 4β,5β-epoxyxanthatin-1α,4α-endoperoxide (3), and 1β,4β,4α,5α-diepoxyxanth-11(13)-en-12-oic acid (10) have been isolated, together with seven known compounds. The structures were determined by spectroscopic methods, particularly high resolution 1D, 2D NMR spectroscopy and NOE experiments.

Key words

Xanthium strumarium - Asteraceae - sesquiterpenoids - xanthanolides - endoperoxide - xanthane epoxide

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