Results 241 to 250 of about 26,640 (293)

Selective separation of flavonoid glycosides in Dalbergia odorifera by matrix solid‐phase dispersion using titania

Journal of Separation Science, 2011
Selective separation of flavonoid glycosides in Dalbergia odorifera by matrix solid-phase dispersion using titaniaDalbergia odorifera contains high concentrations of flavonoid aglycones and trace flavonoid glycosides.
Lingyan Xu, Tu Liang, Jiatao Feng
exaly   +2 more sources

Acylated flavonoid and phenylethanoid glycosides from Marrubium velutinum

Phytochemistry, 2003
From the aerial parts of Marrubium velutinum, one acylated flavonoid glycoside, chrysoeriol 7-O-(3'',6''-di-O-E-p-coumaroyl)-beta -D-glucopyranoside, and two tetrasaccharidic phenylethanoid glycosides, velutinosides I (I) and II, have been isolated ...
Anastasia Karioti, Helen Skaltsa, J Heilmann   +2 more
exaly   +4 more sources

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Flavonoids and their glycosides, including anthocyanins

Natural Product Reports, 2008
This review describes more than 600 new examples of naturally occurring flavonoids found either as aglycones or glycosides, comprising flavones, flavonols, chalcones, dihydrochalcones, aurones, flavanones, dihydroflavonols, anthocyanidins and anthocyanins.
Nigel C, Veitch, Renée J, Grayer
openaire   +3 more sources

Flavonoid glycosides from Cotoneaster thymaefolia

Phytochemistry, 1994
Abstract A new C-glycoside, vitexin-2″-O-α- d -arabinofuranoside, was isolated from the leaves of Cotoneaster thymaefolia. Vitexin, vitexin-2″-O-rhamnoside, rutin, quercetin 3-rhamnoside, 5,7,2′,5′-tetrahydroxyflavanone and its 7-glucoside were also identified. The structures of the compounds were determined by spectroscopic methods.
E. PALME, BILIA, ANNA RITA, V. DE FEO, I. MORELLI   +3 more
openaire   +4 more sources

Investigation of flavonoid glycosides

Chemistry of Natural Compounds, 1965
1. The method of differential analysis in the IR region of the spectrum has been used in an investigation of the structure of the carbohydrate part of flavonoid glycosides. This method permits the pyranose and furanose forms of the carbohydrate substituents, the α- and β-anomers of the pyranosides and other structural features characterizing the nature
I. P. Kovalev, V. I. Litvinenko
openaire   +1 more source

Flavonoid glycosides from Eugenia jambos

Phytochemistry, 1994
Two flavonol diglycosides isolated from the leaves of Eugenia jambos were characterized as quercetin and myricetin 3-O-beta-D-xylopyranosyl(1-->2) alpha-L-rhamnopyranosides by means of spectral analyses applying 2D NMR techniques and NOE experiments.
K, Slowing, M, Söllhuber, E, Carretero, A, Villar   +3 more
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A Flavonoid glycoside from maytenus aquifolium

Phytochemistry, 1998
Abstract The flavonol glycoside kaempferol-3-O- 2 , 1 , 2 , 3 , 6 β - d -galactopyranoside was identified in the infusion of the leaves from Maytenus aquifolium .
SANNOMIYA M., VILEGAS W., RASTRELLI, Luca, PIZZA C.   +3 more
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Flavonoid glycosides of Alchemilla vulgaris L.

Phytotherapy Research, 1998
From the methanol extract of Alchemilla vulgaris L. (Rosaceae) four flavonoid glycosides were obtained. The isolated compounds were characterized by their spectral and chromatographic data. The known pharmacological properties of flavonoids may explain the use of this plant in popular medicine. © 1998 John Wiley & Sons, Ltd.
DAGOSTINO MARIO, DINI, IRENE, RAMUNDO, ELISEO, SENATORE, FELICE   +3 more
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Flavonoid glycosides from Barringtonia acutangula

Bioorganic & Medicinal Chemistry Letters, 2017
Using various chromatographic separation techniques, ten flavonoid glycosides, including six new compounds namely barringosides A-F (1-6), were isolated from a methanol extract of the Barringtonia acutangula leaves. The structure elucidation was confirmed by spectroscopic analyses, including 1D and 2D NMR, and HR ESI MS. Their inhibitory effects on LPS-
Le Thi, Vien, Quach Thi Thanh, Van, Tran Thi Hong, Hanh, Phan Thi Thanh, Huong, Nguyen Thi Kim, Thuy, Nguyen The, Cuong, Nguyen Hai, Dang, Nguyen Van, Thanh, Nguyen Xuan, Cuong, Nguyen Hoai, Nam, Phan Van, Kiem, Chau Van, Minh   +11 more
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Flavonoid glycosides from Cassia alata

Phytochemistry, 1991
Two new glycosides, chrysoeriol-7-O-(2"-O-beta-D-mannopyranosyl)-beta-D-allopyranos ide and rhamnetin-3-O-(2"-O-beta-D-mannopyranosyl)-beta-D-allopyranosid e, were isolated from the seeds of Cassia alata. The structures were established on the basis of chemical evidence and spectroscopic methods, especially NMR.
D, Gupta, J, Singh
openaire   +2 more sources