Results 141 to 150 of about 150,604 (192)
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Flavonoid glycosides from Eugenia jambos
Phytochemistry, 1994Two 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 +3 more
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A Flavonoid glycoside from maytenus aquifolium
Phytochemistry, 1998Abstract 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. +3 more
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Flavonoid glycosides of Alchemilla vulgaris L.
Phytotherapy Research, 1998From 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 +3 more
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Flavonoid glycosides from Barringtonia acutangula
Bioorganic & Medicinal Chemistry Letters, 2017Using 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 +11 more
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Structural Characterization of Flavonoid Glycosides by Multi-Stage Mass Spectrometry
Mass Spectrometry Reviews, 2010 Flavonoids are secondary plant metabolites of great structural variety and high medicinal significance. The search for new chemical entities and the quality control of flavonoid containing natural products require easy-to-use but reliable and robust ...
Viktoria Vukics
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Flavonoid glycosides from Cassia alata
Phytochemistry, 1991Two 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
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Phase-Transfer-Catalyzed Synthesis of Flavonoid Glycosides
Planta Medica, 1990Phase-transfer-catalyzed glycosylation of flavonoid aglycons appears to be a facile method for flavonoid glycosides synthesis, the stereospecificity of the reaction appears to be good, except for the L-rhamnose ...
C, Demetzos +3 more
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Flavonoid glycosides of Kalanchoe spathulata
Phytochemistry, 1981Abstract A new glycoside, patuletin 3,7-di- O -rhamnoside, together with patuletin, quercetin, quercetin 3- O -glucoside-7- O -rhamnoside, kaempferol and kaempferol 3- O -rhamnoside were identified from leaves and flowers of Kalanchoe spathulata .
K.N. Gaind +3 more
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Flavonoid glycosides of Lathyrus pratensisleguminosae
Phytochemistry, 1981Abstract Eight flavonoid glycosides have been identified in the leaves of Lathyrus pratensis , two of which are new glycosides.
Joël Reynauld, Ali Ismaili, Maurice Jay
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Flavonoid glycosides of Stachys annuae
Chemistry of Natural Compounds, 1971Four flavonoid compounds have been isolated from the herbStachys annuae (L.). stachannin A, stachannoside B, and substances C and D.
I. P. Sheremet, N. F. Komissarenko
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