Determination of the absolute configuration and evaluation of the in vitro antitumor activity of dilospirane B

Grégory Genta-Jouve, Efstathia Ioannou, Véronique Mathieu, Céline Bruyère, Florence Lefranc, Olivier P. Thomas, Robert Kiss, Vassilios Roussis

Research output: Contribution to a Journal (Peer & Non Peer)Articlepeer-review

6 Citations (Scopus)

Abstract

The absolute configuration of dilospirane B (1), a diterpene featuring a novel carbon framework recently isolated from the brown alga Dilophus spiralis, was established on the basis of theoretical calculations of its electronic circular dichroism spectra applying the time-dependent density functional theory method. Metabolite 1, evaluated for its in vitro antitumor activity against six human cancer cell lines displaying various levels of sensitivity to pro-apoptotic stimuli, exhibited growth inhibitory activity with a mean IC 50 value of 66 μM. Quantitative videomicroscopy analyses indicated that 1 initially displays cytostatic effects which later become cytotoxic.

Original languageEnglish
Pages (from-to)747-751
Number of pages5
JournalPhytochemistry Letters
Volume5
Issue number4
DOIs
Publication statusPublished - Dec 2012
Externally publishedYes

Keywords

  • Absolute configuration
  • Antitumor activity
  • Dilospirane B
  • ECD

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