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  • 1
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis of Glucuronides in the Flavonoid-Series, II. Isolation of Kaempferol-3-β-D-glucuronide from Euphorbia esula L.From the aerial parts of Euphorbia esula L. (Euphorbiaceae) a flavone-glycoside was isolated and identified as 3,5,7,4′-tetrahydroxyflavone(kaempferol)-3-β-D-glucuronide (8). Its structure was confirmed by coupling of 7,4′ -dibenzylkaempferol with methyl(tri-O-acetyl-α-D-glucopyranosyl bromide)-uronate, followed by total acetylation, debenzylation and saponification to 8.
    Notes: Aus den oberirdischen Teilen von Euphorbia esula L. (Euphorbiaceae) wurde ein Flavonglykosid isoliert und als 3.5.7.4′-Tetrahydroxy-flavon(Kämpferol)-3-β-D-glucuronid (8) identifiziert. Seine Struktur wurde durch Kupplung von 7.4′-Dibenzyl-Kämpferol mit α-Acetobromglucuronsäure-methylester, Darstellung des Vollacetats, Entbenzylierung und Verseifung zu 8 bewiesen.
    Type of Medium: Electronic Resource
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