Lignans from Schisandra propinqua var. propinqua |
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Authors: | Lei Chun Huang Sheng-Xiong Chen Ji-Jun Pu Jian-Xin Yang Li-Bin Zhao Yong Liu Jin-Ping Gao Xue-Mei Xiao Wei-Lie Sun Han-Dong |
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Affiliation: | State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, P.R. China. |
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Abstract: | Two new dibenzocyclooctadiene lignans angeloyl-(+)-gomisin K(3) (1) and methylisogomisin O (2), together with six known ones, isogomisin O, angeloylisogomisin O, gomisin O, angeloygomisin O, benzoylgomisin O, epigomisin O, and four 1,4-bis(phenyl)-2,3-dimethylbutane type lignans, pregomisin, meso-dihydroguaiaretic acid, isoanwulignan, and sphenanlignan were isolated from the aerial parts of Schisandra propinqua var. propinqua. The structures of 1 and 2 were elucidated by spectroscopic methods including extensive 1D- and 2D-NMR techniques. |
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