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New xanthones from Calophyllum caledonicum.

C Morel1, D Séraphin, J M Oger

  • 1SONAS, UFR des Sciences Pharmaceutiques et Ingénierie de la Santé, 16 Bd Daviers, F-49100 Angers, France, and ICSN-CNRS, Gif-sur-Yvette, F-91191, France.

Journal of Natural Products
|November 23, 2000
PubMed
Summary

Researchers discovered four novel xanthones, named caledonixanthones A-D, from the Calophyllum caledonicum tree bark. These compounds were identified using advanced spectroscopic and chemical methods, expanding the known natural product library.

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Area of Science:

  • Natural Product Chemistry
  • Phytochemistry
  • Organic Chemistry

Background:

  • The Calophyllum genus is a rich source of bioactive natural products.
  • Xanthones are a class of compounds with diverse pharmacological properties.
  • Phytochemical investigation of Calophyllum caledonicum bark is ongoing.

Purpose of the Study:

  • To isolate and characterize new xanthone compounds from Calophyllum caledonicum trunk bark.
  • To contribute to the understanding of the chemical diversity within the Calophyllum genus.

Main Methods:

  • Extraction and isolation of compounds from plant material.
  • Spectroscopic analysis (e.g., NMR, MS) for structure elucidation.
  • Chemical derivatization to confirm structural features.

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Main Results:

  • Isolation of four new xanthones, designated caledonixanthones A-D (compounds 1-4).
  • Identification of 17 known compounds alongside the new xanthones.
  • Complete structural determination of the novel compounds through spectroscopic and chemical data.

Conclusions:

  • The trunk bark of Calophyllum caledonicum is a source of novel xanthone derivatives.
  • The identified compounds contribute to the known chemical constituents of the Calophyllum species.
  • Further research may explore the biological activities of these newly discovered xanthones.