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Contribution à la phytochimie du genre Gentiana , VI . Etude des xanthones dans les feuilles de Gentiana bavarica L.
Author(s) -
Hostettmann Kurt,
Tabacchi Rafaël,
JacotGuillarmod André
Publication year - 1974
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19740570204
Subject(s) - gentiana , chemistry , gentianaceae , botany , stereochemistry , biology
Ten tetraoxygenated xanthones (1‐hydroxy‐3, 7, 8‐trimethoxyxanthone I; 1, 7‐dihydroxy‐3, 8‐dimethoxyxanthone II; 1, 7, 8‐trihydroxy‐3‐methoxyxanthone III; 1, 3, 7, 8‐tetrahydroxyxanthone IV; 3, 7, 8‐trimethoxyxanthone‐1‐O‐primeveroside V; 7‐hydroxy‐3, 8‐dimethoxyxanthone‐1‐O‐primeveroside VI; 1, 8‐dihydroxy‐3‐methoxyxanthone‐7‐O‐acetylrutinoside VII; 7, 8‐dihydroxy‐3‐methoxyxanthone‐1‐O‐primeveroside VIII; 3, 7, 8‐trihydroxyxanthone‐1‐O‐primeveroside IX; 3, 7, 8‐trihydroxyxanthone‐1‐O‐glucoside X) have been isolated from leaves of Gentiana bavarica L . by means of column chromatography on polyamid. Among these xanthones, VI, VII, VIII and IX were not encountered before in nature.