Detail of "22255-13-6"

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Flavonoid compounds from the leaves of Rubus idaeus L

Flavonoid compounds from the leaves of Rubus idaeus L. Gudej, J.; Rychlinska, I. (Zaklad Farmakognozji Instytutu Technologii chemii Lekow Akademii Medycznej, Lodz, Pol.). Herba Polonica, 42(4), 257-261 (Polish) 1996 Instytut Roslin i Przetworow Zielarskich. CODEN: HPBIA9. ISSN: 0018-0599. DOCUMENT TYPE: Journal CA Section: 11 (Plant Biochemistry) Four chromatog. homogeneous flavonoid and ellagic acid were isolated from the leaves of R.Several substances with their cas registry numbers 520-18-3 and 22255-13-6 may be metioned in this study. idaeus L. subspecies culture of Norna. The identification of the compds. obtained was carried out be means of chem. and spectroscopic (UV, NMR) methods. They were recognized as kaempferol, quercetin, quercetin 3-O-a-L-arabinopyranoside (quijaverin) and kaempferol 3-O-b-D-glucuropyranoside. .

Micromolecular and macromolecular comparison of Argentine mistletoe (Ligaria cuneifolia (R

Micromolecular and macromolecular comparison of Argentine mistletoe (Ligaria cuneifolia (R. et P.) and European mistletoe (Viscum album L.). Wagner, Marcelo L.; Fernandez, Teresa; Alvarez, Elida; Ricco, Rafael A.; Hajos, Silvia; Gurni, Alberto A. (Catedra Farmacobotanica, Universidad Buenos Aires, Buenos Aires 1113, Argent.). Acta Farmaceutica Bonaerense, 15(2), 99-108 (Spanish) 1996 Colegio de Farmaceuticos de la Provincia de Buenos Aires. 522-12-3 is the cas registry number. This chemical is also mentioned in this article. CODEN: AFBODJ. ISSN: 0326-2383. DOCUMENT TYPE: Journal CA Section: 63 (Pharmaceuticals) Argentine mistletoe (Ligaria cuneifolia (R. et P.) Tiegh., Loranthaceae) is usually used in local folk medicine as the natural substitute of the European mistletoe (Viscum album L., Viscaceae). Despite the fact that both belong to different botanical families, they are similar at vegetative stage. Both are hemiparasitic species usually employed in folk medicine to prevent high blood pressure. The micromol. and macromol. components present in acellular exts. of L. cuneifolia and V. album are compared. The anal. of the polyphenolic components showed that each species has a differential metabolic pathway: L. cunefolia produces quercetin (Qu) and its glycosides (Qu-3-O-xyloside, Qu-3-O-rhamnoside, foeniculin, avicularin), leuco (catechin, epicatechin and flavan-4-b-ol) and proanthocyanidins (dimers, oligomers and polymers of flavan-4-b-ol) while V. album produces quercetin Me deriv., but no proanthocyanidins. Each ext. has a characteristic protein patten when analyzed by SDS-PAGE and a differential immunogenic capacity evidenced by Ouchterlony's method and Western-blot. These results could be applied to improve the detection of substitution of the European mistletoe by the Argentine mistletoe L. cuneifolia. .