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, III Isolation of Apigenin-7-β-D-glucuronide from Ruellia tuberosa L. and its SynthesisFrom the yellow buds of Ruelliae tuberosa L. (Acanthaceae) a flavone-glycoside was isolated which could be identified as 5.7.4′-trihydroxyflavone(apigenin)-7-β-D-glucuronide (3). Its structure was confirmed by coupling 4′-O-benzylapigenin with methyl(tri-O-acetyl-α-D-glucopyranosyl bromide)uronate, followed by total acetylation, debenzylation and saponification to 3.
Notes:
Aus den gelben Knospen von Ruellia tuberosa L. (Acanthaceae) wurde ein Flavonglykosid isoliert und als 5.7.4′-Trihydroxy-flavon(Apigenin)-7-β-D-glucuronid (3) identifiziert. Der Strukturbeweis gelang durch Kupplung von 4′-O-Benzyl-apigenin mit α-Acetobromglucuronsäure-methylester, Darstellung des Vollacetats, Entbenzylierung und Verseifung zu 3.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19711040905
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