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Triterpenes from Adiantum lunulactum.

G Brahmachari1, D Chatterjee

  • 1Department of Chemistry, Visva-Bharati University, Santiniketan-731 235, West Bengal, India. brahmg2001@yahoo.co.in

Fitoterapia
|August 8, 2002
PubMed
Summary

Researchers identified a new hopane triterpenoid, 6 alpha-acetoxy-16 beta,22-dihydroxy-3-ketoisohopane, from the Adiantum lunuactum plant. This study also confirmed the presence of mollugogenol A, a known triterpenoid.

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Area of Science:

  • Phytochemistry
  • Natural Products Chemistry
  • Organic Chemistry

Background:

  • Adiantum lunuactum is a plant species with potential medicinal properties.
  • Triterpenoids are a class of naturally occurring compounds with diverse biological activities.
  • Previous phytochemical investigations of Adiantum species have revealed various bioactive compounds.

Purpose of the Study:

  • To isolate and characterize novel compounds from Adiantum lunuactum.
  • To elucidate the chemical structures of isolated compounds using spectroscopic and chemical methods.
  • To contribute to the understanding of the phytochemical profile of Adiantum lunuactum.

Main Methods:

  • Extraction of the whole plant of Adiantum lunuactum using petrol solvent.
  • Isolation of compounds using chromatographic techniques.
  • Structure elucidation of the new compound through spectral analyses (e.g., NMR, MS) and chemical derivatization.

Main Results:

  • A new hopane triterpenoid, 6 alpha-acetoxy-16 beta,22-dihydroxy-3-ketoisohopane, was isolated and characterized.
  • The known triterpenoid 3beta,6 alpha,16 beta,22-tetrahydroxyisohopane (mollugogenol A) was also identified.
  • The structures of these compounds were confirmed by comprehensive spectral and chemical studies.

Conclusions:

  • The phytochemical investigation of Adiantum lunuactum led to the discovery of a new hopane triterpenoid.
  • The findings expand the knowledge of triterpenoids found in the Adiantum genus.
  • Further studies are warranted to explore the potential biological activities of the isolated compounds.

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