Etude des composés flavoniques et xanthoniques dans les feuilles de Gentiana ciliata L

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 , glucosyl‐1‐gentiacaulein ( 8 ), primeverosyl‐8‐isogentiacaulein ( 9 ), glucosyl‐3‐isogentiacaulein ( 10 ), glucosyl‐1‐swertianin ( 12 ) and primeverosyl‐7‐swertianin ( 13 ). Three known flavone C‐glucosides were also found ( 16 – 18 ).