Results 251 to 260 of about 26,640 (293)

Phase-Transfer-Catalyzed Synthesis of Flavonoid Glycosides

Planta Medica, 1990
Phase-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, A L, Skaltsounis, F, Tillequin, M, Koch   +3 more
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Flavonoid glycosides of Lathyrus pratensisleguminosae

Phytochemistry, 1981
Abstract 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 Kalanchoe spathulata

Phytochemistry, 1981
Abstract 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, K.N. Gaind, Anil K. Singla, James W. Wallace   +3 more
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Exploration of Acetylcholinesterase Inhibitors from Flavonoids and Flavonoid Glycosides

Neurochemical Journal, 2020
A few organic synthetic drugs, such as donepezil, rivastigmine and tacrine, are used for inhibition of acetylcholinesterase (AChE) can provide palliative treatment without generally affecting the progression of the disease, however, sometimes at the cost of severe side effects.
null Peng Zhou, null Fang Hua
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Flavonoid glycosides of Stachys annuae

Chemistry of Natural Compounds, 1971
Four 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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Flavonoid glycosides fromMelandrium firmum

Archives of Pharmacal Research, 1989
Linarin and schaftoside were isolated fromMelandrium firmum (Caryophyllaceae) and characterized by spectral data.
Eun Hee Woo, Won Sick Woo
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The alkaline hydrolysis of flavonoid glycosides

Chemistry of Natural Compounds, 1969
1. The alkaline hydrolysis of flavonoid glycosides has been studied. 2. In an alkaline medium 3-glycosides, C-glycosides, and biosides having 1, 2 bonds between the sugars are stable. 3. The difference in the stabilities of the glycosides to alkalis can be used in studying flavonoid O-diglycosides, O-biosides with different positions of the bond, O,C ...
V. I. Litvinenko, V. A. Makarov
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Thermal Degradation of Glycosides, IV. Degradation of flavonoid glycosides

Liebigs Annalen der Chemie, 1991
AbstractBy mere heating, the flavone (1, 7), flavanone (4, 10), and flavonol glycosides (13, 14) are converted into their aglycones and monoglycosides. The products of pyrolysis have been isolated by chromatography and their structures elucidated by chemical and spectroscopic methods.
Youn Chul Kim, Ryuichi Higuchi, Yoichi Kitamura, Tetsuya Komori   +3 more
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The flavonoid glycosides of Salix purpurea

Phytochemistry, 1967
Abstract Isosalipurposide, the 2′-glucoside of chalconaringenin, has been shown to be the principal flavonoid of young bark of Salix purpurea ; in the old bark it is accompanied by isomeric forms of naringenin 5-glucoside, salipurposide. The leaf of S.
J.M. Jarrett, A.H. Williams
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Anti-platelet effects of flavonoids and flavonoid-glycosides from Sophora japonica

Archives of Pharmacal Research, 2008
A methanol extract of Sophora japonica was subjected to anti-platelet activity guided fractionation affording the isolation of four flavonoids and six flavonoid-glycosides: biochanin A (1), irisolidone (2), genistein (3), sissotrin (4), sophorabioside (5), genistin (6), tectoridin (7), apigenin (8), quercitrin (9), and rutin (10). The structure of each
Jeong Mi, Kim, Hye Sook, Yun-Choi
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