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Contribution à la phytochimie du genre Gentiana, XIX. Identification de nouveaux C-glucosides flavoniques dans Gentiana pyrenaicaL

✍ Scribed by Andrew Marston; Kurt Hostettmann; André Jacot-Guillarmod

Publisher: John Wiley and Sons
Year: 1976
Tongue: German
Weight: 368 KB
Volume: 59
Category: Article
ISSN: 0018-019X
DOI: 10.1002/hlca.19760590735

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✦ Synopsis

Phytochemistry of genus Gentiana, XIX: Identification of new C‐glycosylflavones in Gentiana pyrenaica L.

Five flavone C‐glucosides [6‐C‐β‐D‐glucopyranosyl‐tricine (1) or isopyrenine; 7‐O‐β‐D‐glucopyranosyl‐6‐C‐β‐D‐glucopyranosyltricine (2) or isopyrenine‐7‐O‐glucoside; isoscoparine‐7‐O‐glucoside (3); 7‐O‐β‐D‐glucopyranosyl‐6‐C‐β‐D‐glucopyranosylacacetine (4) and isovitexine‐7‐O‐glucoside (5) or saponarine] as well as the flavonol glucoside isoquercitrine (9) have been isolated chromatographically, using polyamide and cellulose columns, from the aerial parts of Gentiana pyrenaica L. 1 and 2 are new compounds and the first glycoflavones trisubstituted on cycle B. Compound 4 is also encountered for the first time in nature.

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