**Phytochemistry of genus __Gentiana__, XX. Identification of new di‐__O__‐glucosides of __C__‐glucosylflavones in __Gentiana asclepiadea__ L.** Two new __O__‐glucosides of __C__‐glucoside flavonic compounds [isoorientin‐2″,4′‐di‐__O__‐β‐D‐glucoside (**1**) and isovitexin‐2″‐4′‐__O__‐β‐D‐glucoside
Contribution à la phytochimie du genre Gentiana. XXII. Identification de nouveaux O-glucosides de la mangiférine dans Gentiana asclepiadeaL.
✍ Scribed by Michel Goetz; André Jacot-Guillarmod
- Publisher
- John Wiley and Sons
- Year
- 1977
- Tongue
- German
- Weight
- 183 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Phytochemistry of genus Gentiana. XXII. Identification of new O‐glucosides of mangiferin in Gentiana asclepiadea L.
Two new O‐glucosides of mangiferin (mangiferin‐7‐O‐β‐D‐glucoside (1) and mangiferin‐6‐O‐β‐D‐glucoside (2)) have been isolated from the leaves of Gentiana asclepiadea L. This is the first full structure elucidation of naturally occurring O‐glucosides of C‐glucosylxanthones. The known C‐glucosylflavone, saponarin (5) was also identified.
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**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; isoscopar
**Phytochemistry of genus __Gentiana__, XXIV. New C‐glycosylflavones from the leaves of __Gentiana asclepiadea__ L.** __p__‐Hydroxybenzoyl‐2″‐isoorientin‐4′‐__O__‐β‐D‐glucoside (**1**) was isolated from the leaves of __Gentiana asclepiadea__ L. by means of column chromatography. This is the first o
## Abstract A new flavonic heteroside, isoorientin‐3′‐O‐glucoside, has been isolated from leaves of __Gentiana nivalis__ L. by means of column chromatography on polyamide. The determination of the structure is described.
**Phytochemistry of genus __Gentiana__ XXI: The cinnamoyl‐__C__‐glucosylflavones and their __O__‐glucosides in __Gentiana punctata__ L.** Three new (**1**–**3**) and three previously identified (**4**–**6**) cinnamoyl‐__C__‐glucosyl‐flavones have been isolated from the leaves of __Gentiana punctata
## Abstract L‐(+)‐bornesitol has been isolated from the leaves of __G. lutea__ L. in the proportion of 1,6% by weight of dried material. __Meso__‐inositol has also been detected by chromatography. Distribution of L‐(+)‐bornesitol and its taxonomic interest are discussed.