Abstract

Six xanthones, 1,3,7-trihydroxy-2-(2-hydroxy-3-methyl-3-butenyl)-xanthone ( 1), 1,7-dihydroxy-2,3-[2″-(1-hydroxy-1-methylethyl)-dihydrofurano]-xanthone ( 2), 1,3,7-trihydroxy-5-methoxyxanthone ( 3), 1,7-dihydroxy-5,6-dimethoxyxanthone ( 4), 4,5-dihydroxy-2,3-dimethoxyxanthone ( 5), 1,3-dihydroxy-2,4-dimethoxyxanthone ( 6) and 21 known xanthones were isolated from the leaves and stems of Hypericum chinense. Their structures were established based on spectroscopic studies.

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