Configurations of polyunsaturated sesterterpenoids from the diatom, Haslea ostrearia.

Lesley Johns, Simon Belt, C. Anthony Lewis, Steven Rowland*, Guillaume Massé, Jean Michel Robert, Wilfried A. König

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The partial configurations of C25 isoprenoid alkenes isolated from the diatom Haslea ostrearia Gaillon (Simonsen) have been established. A combination of NMR spectroscopy studies of the alkenes with chiral shift reagents in conjunction with soluble silver beta-diketonate complexes and enantioselective gas chromatography of oxidation products of the alkenes was used. Unexpected differences in highly branched isoprenoid isomer configurations were observed between different laboratory cultures of the alga.
Original languageEnglish
Pages (from-to)607-611
Number of pages0
JournalPhytochemistry
Volume53
Issue number5
DOIs
Publication statusPublished - Mar 2000

Keywords

  • Alkenes
  • Chromatography
  • Gas
  • Diatoms
  • Magnetic Resonance Spectroscopy
  • Stereoisomerism
  • Terpenes

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