Daviditin B from Swertia davidi Franch.
- Author:
Gui-shan TAN
1
;
Kang-ping XU
;
Fu-shuang LI
;
Ping-sheng XU
;
Gao-yun HU
;
De-jian JIANG
;
Yuan-jian LI
Author Information
- Publication Type:Journal Article
- MeSH: Antioxidants; chemistry; isolation & purification; Molecular Conformation; Molecular Structure; Plants, Medicinal; chemistry; Swertia; chemistry; Xanthones; chemistry; isolation & purification
- From: Acta Pharmaceutica Sinica 2003;38(12):931-933
- CountryChina
- Language:Chinese
-
Abstract:
AIMTo study the active constituents of Swertia davidi Franch.
METHODSChemical components were isolated by column chromatography and their structures were established mainly by spectroscopic means (UV, IR, NMR, 2D-NMR, MS).
RESULTSThree substances were identified as 2,5-dimethoxyl-1, 4-dicarboxyl benzene (VIII), 1,5,8-trihydroxyl-3,4-dimethoxyl xanthone (IX) and 1,8-dihydroxyl-3-(3'-hydroxyl-butoxy) xanthone (X).
CONCLUSIONCompounds VIII and IX were isolated from Swertia davidi Franch, for the first time, whereas compound X is a new xanthone, named daviditin B with antioxygenated activity in vitro.
