Two hispidin dimers from Piptoporellus baudonii (Fomitopsidaceae) with anticancer activity

  • Jenifer Reine Ngnouzouba Kuete
  • , Olyvia Gwladys Fadeyi
  • , Boris Armel Olou
  • , Frank Wilson Tiatsop Kenmoe
  • , Bienvenu Tsakem
  • , Rémy Bertrand Teponno*
  • , Léon Azefack Tapondjou
  • , Simeon Fogue Kouam
  • , Nourou Soulemane Yorou
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Chemical analysis of the ethanol extract from the stromata of Piptoporellus baudonii led to the isolation and characterization of two unreported bishispidin derivatives named 11-hydroxysquarrosidine (1) and laetipohispidin (2) together with two known terpenoids: ergosterol (3) and eburicoic acid (4). Their structures were elucidated by spectroscopic methods including 1D and 2D NMR, UV, IR, ECD as well as the high-resolution mass spectrometry. Although metabolite 1 was reported in a patent as a synthetic compound, this is the first report on its isolation from natural source. Compounds 1 and 2 were evaluated for their antimicrobial and cytotoxic activities. 11-hydroxysquarrosidine (1) exhibited a moderate activity against all the tested human cancer cell lines with IC50 values ranging from 25.79 to 73.41 µM.

Original languageEnglish
Pages (from-to)19-23
Number of pages5
JournalPhytochemistry Letters
Volume65
DOIs
Publication statusPublished - Feb 2025
Externally publishedYes

Keywords

  • Antimicrobial activity
  • Cytotoxic activity
  • Hispidin derivatives
  • Piptoporellus baudonii

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