Four new lignans from Schisandra sphenanthera
2013
Li, Yun-Fang | Jiang, Yan | Huang, Jing-Fang | Yang, Guang-Zhong
Three new 7,8-secolignans, schisandlignans A–C (1 , 2 , and 4), one new dibenzocyclooctadiene lignan, schisandlignan D (5), together with nine known lignans 3′,4′-dimethoxybenzoic acid (3″,4″-dimethoxyphenyl)-2-methyl-3-oxobutyl ester (3), gomisin J (6), rubrisandrin A(1b) (7), interiotherin B (8), schisantherin D (9), (−)-machilusin (10), ganschisandrine (11), henricine A (12), and (+)-1-hydroxy pinoresinol (13), were isolated from the rattan of Schisandra sphenanthera . Their structures were determined by analysis of 1D and 2D NMR spectroscopic data.
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