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Xanthones from the herb of Swertia elata and their anti-TMV activity
Wei Jiang1, Dong-Lai Zhu2, Ming-Feng Wang2
1a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education , Yunnan Minzu University , Kunming , P.R. China.
Natural Product Research
|September 3, 2015
Abstract:
Two new xanthones (1-2), together with four known ones (3-6), were isolated from whole herb of Swertia elata. Their structures were elucidated by spectroscopic methods including extensive 1D- and 2D-NMR techniques. Their anti-tobacco mosaic virus (anti-TMV) activity test revealed that 1-6 showed weak anti-TMV activities with inhibition rate in the range of 15.2-28.8% at the concentration of 20 μM.
