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Träfflista för sökning "WFRF:(Torssell Kurt) "

Search: WFRF:(Torssell Kurt)

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1.
  • El-Seedi, Hesharn Rushdey, et al. (author)
  • Constituents of Hypericum laricifolium and Their Cyclooxygenase (COX)Enzyme Activities
  • 2003
  • In: Chemical and pharmaceutical bulletin. - : Pharmaceutical Society of Japan. - 0009-2363 .- 1347-5223. ; 51:12, s. 1439-1440
  • Journal article (peer-reviewed)abstract
    • Investigation of the aerial parts of the medicinal plant Hypericum laricifolium led to the isolation of two new natural products, hentriacontanyl caffeate (1a), nonacosanyl caffeate (1b). In addition, stigmasterol, beta-sitosterol, 3-epi-betulinic acid (2), caffeic acid (3), ferulic acid, docosanol, p-hydroxybenzoic acid, 3,4-dimethoxy benzoic acid, quercetin (4), quercetin-3-O-galactoside (5), quercetin-3-O-rutinoside (6), quercetin-3-O-rhamnoside (7), quercetin-3-O-glucuronide (8) and shikimic acid were also isolated. The structures were determined by 1D- and 2D-NMR, mass spectrometry, and chemical transformations. The anti-inflammatory effects of the isolated compounds were discussed briefly.
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3.
  • El-Seedi, Hesham R, et al. (author)
  • Ecologically active 2-octanoylcyclohexane-1,3-dione from Philodendron guttiferum
  • 2001
  • In: Journal of Chemical Ecology. - 0098-0331 .- 1573-1561. ; 27:3, s. 517-521
  • Journal article (peer-reviewed)abstract
    • The novel naturally occurring 2-octanoylcyclohexane-1,3-dione 1 was isolated in its enol form from P. guttiferum (Araceae). Its chemical ecological relevance is discussed. There was mass spectral evidence for the presence of small amounts of the homologous 2-decanoyl and 2-dodecanoyl derivatives.
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