New premyrsinane-type diterpene polyesters from Euphorbia falcata

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Abstract

Four new premyrsinane-type diterpenes (1-4) were isolated from the methanol extract of the whole, undried plant of Euphorbia falcata. Their structures were determined by a combination of 1D and 2D NMR (COSY, HMBC, HSQC and NOESY) techniques and mass spectral data as di-, tetra-, penta- and hexaesters of diterpene polyols, esterified with acetic, benzoic, propanoic, isobutanoic and n-hexanoic acids. One of the compounds contains a rare hemiacetal moiety. This type of diterpenes was previously detected only in four Euphorbia species (Euphorbia aleppica, Euphorbia decipiens, Euphorbia macroclada and Euphorbia pithyusa subsp. cupani).

Original languageEnglish
Pages (from-to)7289-7293
Number of pages5
JournalTetrahedron
Volume67
Issue number38
DOIs
Publication statusPublished - Sep 23 2011

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Keywords

  • Diterpene
  • Euphorbia falcata L.
  • Euphorbiaceae
  • Premyrsinane

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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