**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
Contribution à la phytochimie de genre Gentiana. XXIV.. Nouveaux C-glycosides flavoniques dans les feuilles de Gentiana asclepiadeaL.
✍ Scribed by Michel Goetz; André Jacot-Guillarmod
- Publisher
- John Wiley and Sons
- Year
- 1978
- Tongue
- German
- Weight
- 162 KB
- Volume
- 61
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
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 occurrence in nature of a p‐hydroxybenzoate of isoorientin. p‐Hydroxybenzoyl‐2″‐isoorientin (2) was also shown to be present in the same plant.
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**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 __Gent
**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
## Abstract One new (**1**) and one previously identified (**2**) flavone‐C‐glycosides were isolated from leaves of __Gentiana verna__ L. by means of column chromatography. The columns used were polyamid and cellulose. The structure of the new compound was established as iso‐orientin‐2″‐O‐glucoside
**Phytochemistry of genus __Gentiana__ XXV: Study of the flavonic and xanthonic compounds in leaves of __Gentiana X marcailhouana__ RY. New cinnamoyl‐__C__‐glucosyl‐flavones** Nine flavonic compounds: isoorientin (**1**), isovitexin (**2**), isoorientin‐4′‐__O__‐β‐D‐glucoside (**3**), isovitexin‐4′
## Abstract Two new xanthone‐O‐glycoside, the 1,3,5‐trihydroxy‐xanthone‐8‐O‐β‐D‐glucopyranoside (**3**), the 1,5‐dihydroxy‐3‐methoxyxanthone‐8‐O‐β‐D‐glucopyranoside (**4**), have been isolated from the leaves of __Gentiana campestris__ L. by means of column chromatography on polyamid. Two known xan