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Eudesmane derivatives from Laggera pterodonta.

Yecheng Xiao1, Qunxiong Zheng, Qijun Zhang

  • 1Department of Traditional Chinese Medicine and Natural Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310031, China.

Fitoterapia
|July 3, 2003
PubMed
Summary
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A novel eudesmane derivative was isolated from Laggera pterodonta, alongside six known compounds. The cytotoxic activity of three isolated compounds was evaluated.

Area of Science:

  • Natural Product Chemistry
  • Phytochemistry
  • Organic Chemistry

Background:

  • Laggera pterodonta is a plant species known to produce various chemical compounds.
  • Eudesmane derivatives are a class of sesquiterpenoids with diverse biological activities.

Purpose of the Study:

  • To isolate and elucidate the structure of new compounds from Laggera pterodonta.
  • To investigate the cytotoxic activity of selected isolated compounds.

Main Methods:

  • Isolation of compounds using chromatographic techniques.
  • Structure elucidation using spectroscopic methods (e.g., NMR, MS).
  • Cytotoxicity assays to evaluate biological activity.

Main Results:

  • A new eudesmane derivative, 4alpha,5alpha-dihydroxyeudesma-11(13)-en-12-oic acid (1), was identified.

Related Experiment Videos

  • Six known compounds, including pterodontriol A (2), pterodontriol B, pterodonta acid (3), ilicic acid (4), costic acid, and beta-amyrin, were also isolated.
  • Compounds 2, 3, and 4 were tested for cytotoxic activity.

    • Conclusions:

    • The study successfully identified a new eudesmane derivative and several known compounds from Laggera pterodonta.
    • Further investigation into the biological activities of these compounds is warranted.