J Integr Plant Biol. ›› 1992, Vol. 34 ›› Issue (11): -.

• Research Articles •    

The Xanthones of Swertia erythtrosticta Maxim

Hu Bo-lin, Sun Hong-fa. Fan Shu-fen and Ding Jing-ye   

Abstract: Swertia erythrosticta Maxim. (Gentianaceae) is a herb used for curing some diseases in Tibetan traditional medicine system. Eight xanthones were isolated from this species. Their structures were identified as 1,8-dihydroxy-3,7-dimethoxyxanthone(Ⅰ), 1,5,8-trihydroxy-3-methoxyxanthone (Ⅱ), 1,3,8-trihydroxy-5-methoxyxanthone (Ⅲ), 1,7,8-trihydroxy-3-methoxyxanthone (Ⅳ), 1,3,5,8-tetrahydroxyxanthone (Ⅴ), 1,3,7,8-tetrahydroxyxanthone(Ⅵ), as well as 8-O-β-D-glucopyranosyl-1, 5-dihydroxy-3 -metho xy xanthone(Ⅶ), 8-O-β-D-gl ucopyr anosyl- 1,3,5- trihydroxyxanthone(Ⅷ) by means of chemical methodes and spectral analyses.

Key words: Xanthone, Swertia erythrosticta

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