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Four new neolignans from the leaves of Tripterygium wilfordii
Authors:Cao Xu  Li Chuang-Jun  Yang Jing-Zhi  Wei Bai-Xing  Yuan Shao-Peng  Luo Yong-Ming  Hou Qi  Zhang Dong-Ming
Institution:State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China. 8119202@163.com
Abstract:Four new neolignans, wilfordiols A-D (1-4), together with five known compounds (5-9), were isolated from an aqueous extract of the dried leaves of Tripterygium wilfordii. Their structures were determined by spectroscopic methods, including 1D and 2D NMR, HRESIMS, and CD experiments. The anti-inflammation activities of compounds 1-9 were evaluated by the inhibitory effect on NO production, in vitro.
Keywords:Tripterygium wilfordii  Neolignan  Anti-inflammatory activity
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