A M D el-Mousallamy

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The whole plant of Cotoneaster orbicularis contains the novel di-C-glycosylflavone, 4",4"'-di-O-beta-glucopyranosyl-vicenin II, or 6,8-di-C-beta-Cellobiosylapigenin, as well as the hitherto unknown natural phenolic glucoside, gentisic acid 2-O-beta-glucopyranoside, or orbicularin. Further phenolics are protocatechuic, anisic, caffeic, p-coumaric acids,(More)
From the aerial parts of Ochradenus baccatus, the new flavonoids, quercetin 3-O-beta-glucosyl(1----2)-alpha-rhamnoside-7-O-alpha-rhamnoside and quercetin 3-O-p-coumaryl(1----6)-beta-glucosyl(1----6)-beta-glucoside-7-O-alpha rhamnoside were isolated. The known quercetin glycosides, quercetin 3-gentiobioside, isoquercitrin, quercitrin, together with the known(More)
Two new flavonol glycosides, 8-methoxyquercetin-3-O-beta-glucosyl-(1'"-2")-O-beta-glucoside and kaempferol-3-O-[2'"-galloyl-O-beta-glucosyl-(1'"-2")-O-beta-glucoside)], together with five known quercetin and kaempferol 3-O-mono-glycosides, were isolated and identified from the aerial parts of Sanguisorba minor Scop. (Rosaceae). All structures were(More)
Teucrol, a decarboxy rosmarinic acid and its triglycoside, teucroside, 9'-decarboxyrosmarinic acid-4'-O-alpha-rhamnosyl-(1'''-->6''')-O-beta-galactosyl-(1'''-->4'')-O-alpha-rhamnoside, are two new natural phenolics which have been isolated and identified from the aqueous alcohol extract of the whole plant of Teucrium pilosum (Decne) Asch. & Schweinf.(More)
Two new tri-O-glycoside flavonols: kaempferol and quercetin 3-O-alpha-rhamnopyranosyl(1-->6)-beta-glucopyranosyl(1-->6)-beta- galactopyranosides, were identified from the leaves of Albizia lebbeck. Structures were established by conventional methods of analysis and confirmed by ESI-MS, 1H and 13C-NMR spectral analysis.
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