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  • Title: A new acylated quercetin glycoside and other secondary metabolites from Helleborus foetidus.
    Author: Prieto JM, Siciliano T, Braca A.
    Journal: Fitoterapia; 2006 Apr; 77(3):203-7. PubMed ID: 16545528.
    Abstract:
    A new acylated flavonol glycoside, quercetin 3-O-(2-trans-caffeoyl)-alpha-L-arabinopyranosyl-(1-->2)-beta-D-glucopyranoside (1), together with the known 25R,26-[(beta-D-glucopyranosyl)oxy]-22alpha-hydroxy-5beta-furostan-3-beta-yl O-alpha-l-rhamnopyranosyl-(1-->4)-beta-D-glucopyranoside (2), anemonin (3), beta-D-glucosyl-p-hydroxyphenylethyl alcohol (4), and 1-beta-O-caffeoyl-D-glucose (5) were isolated from Helleborus foetidus leaves and identified on the basis of detailed spectral analysis.
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