571-74-4Relevant academic research and scientific papers
SEXANGULARETIN 3-GLUCOSIDE-7-RHAMNOSIDE FROM GOSSYPIUM HIRSUTUM
Elliger, Carl A.
, p. 1199 - 1201 (1984)
A new diglycosylated flavonol was isolated from immature flower buds of the cotton plant Gossypium hirsutum.The structure was determined to be the 3-glucoside-7-rhamnoside of 3,5,7,4'-tetrahydroxy-8-methoxyflavone.Key words: Gossypium hirsutum; Malvaceae; cotton; 3,5,7,4'-tetrahydroxy-8-methoxyflavone 3-glucoside-7-rhamnoside,; sexangularetin; herbacetin 8-methyl ether.
8-METHOXYKAMPFEROL 3-NEOHESPERIDOSIDE AND OTHER FLAVANOIDS FROM BEE POLLEN OF CRATAEGUS MONOGYNA
Dauguet, Jean-Claude,Bert, Maryse,Dolley, Jean,Bekaert, Alain,Lewin, Guy
, p. 1503 - 1506 (2007/10/02)
A new flavonol glycoside, 8-methoxykamferol 3-neohesperidoside and 8-methoxykampferol 3-glucosid, 8-methoxykaempferol and kaempferol 3-neohesperidoside were identified from the bee pollen of Crataegus monogyna.
Nouveaux flavonosides de Paeonia tenuifolia L.
Stosic, Dusica,Gorunovic, Momcilo,Skaltsounis, Alexios-Leandros,Tillequin, Francois,Koch, Michel
, p. 348 - 353 (2007/10/02)
Two novel flavonoid glycosides have been isolated from the stamens of Paeonia tenuifolia , sexangularetin-3-O-yl β-D-sophoroside (1) and limocitrin-3-O-yl β-D-sophoroside (3).Their structures have been elucidated by spectroscopic means, mainly desorption chemical ionisation mass spectrometry and 1D and 2D high-resolution 1H-NMR spectroscopy of their acetyl derivatives.
FLAVONOID CONSTITUENTS OF EPHEDRA ALATA
Nawwar, Mahmoud A. M.,El-Sissi, Hassan I.,Barakat, Heba H.
, p. 2937 - 2940 (2007/10/02)
Two new flavonol glucosides have been identified in Ephedra alata, namely, herbacetin 8-methyl ether 3-O-glucoside-7-O-rutinoside and herbacetin 7-O-(6''-quinylglucoside).The known flavonoids vicenin II, lucenin III, kaempferol 3-rhamnoside, quercetin 3-rhamnoside and herbacetin 7-glucoside were also found.The structure of the isolated compounds was determined mostly by FABMS and 1H NMR spectroscopy.The final structure of the new compounds and of herbacetin 7-glucoside was confirmed by 13C NMR soectroscopy. Key Word Index - Ephedra alata; Ephedraceae; herbacetin 8-methyl ether 3-O-glucoside-7-O-rutinoside; herbacetin 7-O-(6''-quinyl glucoside); flavonol O-glycosides and C-glycosylflavones.
