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Thymol derivatives from Eupatorium fortunei.

M Tori1, Y Ohara, K Nakashima

  • 1Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan. tori@ph.bunri-u.ac.jp

Journal of Natural Products
|August 25, 2001
PubMed
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Researchers isolated sixteen new thymol derivatives from Eupatorium fortunei. These compounds, classified by oxidation levels, were characterized using spectroscopic data, revealing diverse acylated hydroxyl groups.

Area of Science:

  • Natural Product Chemistry
  • Organic Chemistry
  • Spectroscopy

Background:

  • Eupatorium fortunei is a plant source of bioactive compounds.
  • Thymol derivatives are known for their diverse chemical structures and biological activities.
  • Understanding the chemical diversity of natural products is crucial for drug discovery.

Purpose of the Study:

  • To isolate and characterize new thymol derivatives from Eupatorium fortunei.
  • To elucidate the structures of these novel compounds using spectroscopic methods.
  • To classify the isolated compounds based on their oxidation patterns and acylation.

Main Methods:

  • Isolation of compounds using chromatographic techniques.
  • Structure determination through comprehensive spectroscopic analysis (NMR, MS, etc.).

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  • Classification based on the number and position of oxygen functionalities.

    • Main Results:

    • Sixteen new thymol derivatives were successfully isolated and identified.
    • Compounds were categorized into three groups based on oxidation at positions 8, 9, and 10.
    • Hydroxyl groups were found to be acylated with various moieties, including tigloyl and angeloyl.

    Conclusions:

    • The study expands the known chemical diversity of thymol derivatives from Eupatorium fortunei.
    • The structural characterization provides a basis for further investigation into the biological activities of these compounds.
    • The identification of racemic mixtures for chiral compounds offers insights into their biosynthetic pathways or isolation conditions.