## 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. X. Etude des composés flavoniques et xanthoniques dans les feuilles de Gentiana vernaL.
✍ Scribed by Kurt Hostettmann; André Jacot-Guillarmod
- Publisher
- John Wiley and Sons
- Year
- 1975
- Tongue
- German
- Weight
- 201 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
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 by means of UV. and NMR. spectrosocpy. The known compound was shown to be isoorientin‐4′‐O‐glucoside.
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## 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
**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 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
**Study of the flavonic and xanthonic compounds in the leaves of __Gentiana ciliata__ L.** Fifteen 1,3,7,8‐oxygenated xanthones (**1**–**15**) were isolated from the leaves of __Gentiana ciliata__ L. (genus __Gentianopsis__). Among these were six new glycosides: glucosyl‐1‐decussatin **6**, glucosy
## 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.