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Related Experiment Videos

New Limonoids from Melia toosendan.

J B Zhou1, K Tadera1, Y Minami1

  • 1a Department of Biochemical Science and Technology, Faculty of Agriculture, Kagoshima University.

Bioscience, Biotechnology, and Biochemistry
|June 19, 2016
PubMed
Summary

Researchers identified four novel limonoids from Melia toosendan root bark, featuring a unique bridged acetal structure. These compounds, along with two known limonoids, were investigated for their potential antifeedant activity.

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Area of Science:

  • Natural Product Chemistry
  • Phytochemistry
  • Organic Chemistry

Background:

  • Melia toosendan is a traditional medicinal plant.
  • Limonoids are a class of terpenoids with diverse biological activities.

Purpose of the Study:

  • To isolate and characterize new limonoids from Melia toosendan root bark.
  • To investigate the antifeedant activity of the isolated compounds.

Main Methods:

  • Extraction and isolation of compounds from Melia toosendan root bark.
  • Structure elucidation using spectroscopic methods (NMR, MS) and chemical analysis.
  • Evaluation of antifeedant activity.

Main Results:

  • Four new limonoids with a C-19/C-29 bridged acetal structure were identified.
Keywords:
1-O-acetyltrichilin HMelia toosendanantifeedantlimonoidneoazedarachins

Related Experiment Videos

  • The new compounds were named neoazedarachins A, B, and D, and 1-O-acetyltrichilin H.
  • Two known limonoids, 12α-hydroxyamoorastatone and its 12-acetate, were also isolated.
  • The antifeedant activity of the isolated compounds was assessed.

    • Conclusions:

    • The study successfully identified novel limonoid structures from Melia toosendan.
    • The findings contribute to the understanding of Melia toosendan phytochemistry.
    • The isolated limonoids show potential for further investigation as antifeedant agents.