## Abstract A new xanthone‐O‐glycoside, the 1,7‐dihydroxy‐3‐methoxyxanthone‐8‐O‐β‐D‐glucopyranoside (**7**), has been isolated from the leaves of __Gentiana verna__ L. by means of column chromatography on polyamid. Six known xanthones: 1‐hydroxy‐3,7,8‐trimethoxyxanthone‐1‐O‐primerveroside (**2**);
Contribution à la phytochimie du genre Gentiana IX. Etude de composés flavoniques et xanthoniques dans les feuilles de gentiana CampestrisL. 1ère communication
✍ Scribed by Maryse Kaldas; Kurt Hostettmann; André Jacot-Guillarmod
- Publisher
- John Wiley and Sons
- Year
- 1974
- Tongue
- German
- Weight
- 315 KB
- Volume
- 57
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
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 xanthones (1, 2) which are respectively the aglycones of 3 and 4 and a flavone: iso‐orientine (5) have also been isolated and identified.
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## 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
## Abstract The xanthone isogentisin and two flavonic heterosides (isocrientin‐4′‐O‐glucoside and isovitexin‐4′‐O‐glucoside) have been isolated from leaves of __Gentiana lutea__ L. by means of column chromatography on polyamide. The determination of the structures and the NMR. spectra of the acetyl
**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′
**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 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.