Four new lignans from Schisandra sphenanthera.
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.
a Laboratory for Natural Product Chemistry, College of Pharmacy, South Central University for Nationalities , Wuhan , 430074 , China.
Yun-Fang
YF
Li
Yan
Y
Jiang
Jing-Fang
JF
Huang
Guang-Zhong
GZ
Yang
D034242:Cyclooctanes / Q000737:chemistry / Q000302:isolation & purification*; D005663:Furans / Q000737:chemistry; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D011083:Polycyclic Compounds / Q000737:chemistry; D032141:Schisandra / Q000737:chemistry*
D034242:Cyclooctanes; D005663:Furans; D017705:Lignans; D011083:Polycyclic Compounds; C510994:dibenzocyclooctadiene lignan; C103455:interiotherin B; C103298:pinoresinol; C082091:gomisin J