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Related Experiment Videos

Triterpenoids from Arctium lappa.

S Jeelani1, M A Khuroo

  • 1Department of Chemistry, University of Kashmir, Srinagar 190006, Jammu and Kashmir, India. salikajeelani@yahoo.com

Natural Product Research
|August 19, 2011
PubMed
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Researchers identified two triterpenoids from Arctium lappa leaves, including a new compound, 3α-hydroxylanosta-5,15-diene. This marks the first isolation of this specific triterpenoid from the Arctium genus.

Area of Science:

  • Phytochemistry
  • Natural Product Chemistry

Background:

  • Arctium lappa (burdock) is traditionally used in herbal medicine.
  • The phytochemical profile of Arctium lappa leaves requires further elucidation.

Purpose of the Study:

  • To conduct a phytochemical investigation of Arctium lappa leaf extracts.
  • To isolate and characterize triterpenoids from the plant.

Main Methods:

  • Extraction and isolation of compounds from Arctium lappa leaves.
  • Characterization using Nuclear Magnetic Resonance (NMR), Infrared (IR), and Mass Spectrometry (MS).

Main Results:

  • Two triterpenoids were isolated: 3α-hydroxylanosta-5,15-diene and 3α-acetoxy-hop-22(29)-ene.
  • 3α-hydroxylanosta-5,15-diene was identified as a novel triterpenoid.

Related Experiment Videos

  • This is the first report of 3α-hydroxylanosta-5,15-diene in the Arctium genus.

    • Conclusions:

    • The phytochemical analysis of Arctium lappa leaves yielded two triterpenoids.
    • A new triterpenoid, 3α-hydroxylanosta-5,15-diene, was discovered and isolated for the first time from this genus.