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Cardenolides and ${\beta}$-Sitosterol Glucoside from Pergularia tomentosa L.
The aerial parts of Pergularia tomentosa L. afforded three cardenolides, desglucouzarin, coroglaucigenin and uzarigenin, in addition to β-sitosterol glucoside. The isolated compounds were identifiedExpand
Phenylpropanoids from the stem bark of Jacaranda mimosaefolia
Two new compounds: 2-(3′,4′-dihydroxyphenyl) ethyl-3-O-α-L-rhamnopyranosyl-4-O-p-hydroxyphenylacetyl-6-O-caffeoyl-β-D-glucopyranoside and 2-(3′,4′-dihydroxyphenyl)Expand
A new antioxidant stilbene and other constituents from the stem bark of Morus nigra L.
The new stilbene exhibited remarkable antioxidant capacity with IC50 of 4.69 μM and was evaluated for their potential antioxidant activity using 2,2′-azino-bis-(3-ethylbenzthiazoline-6-sulfonic acid)+ radical-scavenging capacity assay and compared with ascorbic acid. Expand
Two oleananes from Ammannia auriculata Willd.
The antioxidant activities of the total extract, the fractions CH2Cl2, EtOAc and the remaining aqueous together with the compounds 1, 6 and 9 were comparable with that of the standard antioxidant, ascorbic acid. Expand
Assessment of some Herbal Drugs for Prophylaxis of Peptic Ulcer
Aqueous (hydrophilic) and chloroform (Lipophilic) extracts of nine medicinal plants currently used in Egyptian traditional medicine to treat some gastrointestinal tract (GIT) disorders were testedExpand
A New Triterpene Saponin from Chenopodium ficifolium
The new triterpene saponin 3-O-β-ᴅ-glucopyranosiduronic acid oleanolate was isolated from the roots of Chenopodium ficifolium, verified through different chemical and physico-chemical evidences including different 1D and 2D NMR experiments. Expand
Taxodione, a DNA-Binding Compound from Taxodium distichum L. (Rich.)
The activity of taxodione as an inhibitor for hepatic stellate cells was determined and the antitumour activity of 2, 3, and 5 using a DNA affinity probe was examined. Expand
Flavonol Glycosides From Cadaba Glandulosa
  • A. Gohar
  • Chemistry, Medicine
  • Zeitschrift fur Naturforschung. C, Journal of…
  • 1 April 2002
A new flavonol triglycoside was isolated from the ethanol extract of Cadaba glandulosa together with two known diglycosides rhamnocitrin- 3-O-NEohesperoside and rhamnetin-3-neohes peroside, characterization of the three compounds was achieved by various spectroscopic methods. Expand
New acylated flavonol glycoside from Ceratonia siliqua L. seeds
The antioxidant activity of the organic solvent fractions together with some isolated compounds were carried out and showed significant results. Expand
A new pregnane glycoside from Gomphocarpus fruticosus growing in Egypt
Phytochemical investigation of Gomphocarpus fruticosus of Egyptian origin afforded the new pregnane glycoside lineolon-3-O-[β-D-oleandropyranosyl-(1–4)-β- D-cymaropyranoside], along with six known compounds, which were elucidated on the basis of extensive spectroscopic evidences derived from 1D, 2D NMR experiments and mass spectrometry. Expand