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Bioactive azafluorenone alkaloids from Polyalthia debilis (pierre) finet & Gagnep.

  • Srinakharinwirot University
  • Chulabhorn Research Institute
  • Mahidol University

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)

Abstract

This study investigated bioactive extracts of Polyalthia debilis (Annonaceae) with antimicrobial, antimalarial and cytotoxic activities. Extensive chromatographic isolations provided azafluorenone alkaloids; onychine (1) and 7-methoxyonychine (2) together with a mixture of β-sitosterol and stigmasterol. The two alkaloids were isolated from the P. debilis for the first time. Isolated fractions containing a mixture of triterpenoids (C7, C8 and C9) exhibited the most potent antimicrobial activity against many bacterial strains with minimum inhibitory concentration of 64 μg/mL. Fractions with antimalarial and cytotoxic activities were also observed. The findings suggest the potential use of P. debilis in medicinal applications.

Original languageEnglish
Pages (from-to)4414-4424
Number of pages11
JournalMolecules
Volume14
Issue number11
DOIs
Publication statusPublished - Nov 2009

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • Antimalarial and cytotoxic activities
  • Antimicrobial
  • Azafluorenone
  • Onychine
  • Polyalthia debilis

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