Lignans from Schisandra propinqua var. propinqua.
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.
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, P.R. China.
Chun
C
Lei
Sheng-Xiong
SX
Huang
Ji-Jun
JJ
Chen
Jian-Xin
JX
Pu
Li-Bin
LB
Yang
Yong
Y
Zhao
Jin-Ping
JP
Liu
Xue-Mei
XM
Gao
Wei-Lie
WL
Xiao
Han-Dong
HD
Sun
D000431:Ethanol; D005638:Fruit / Q000737:chemistry; D017705:Lignans / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D032141:Schisandra / Q000737:chemistry*; D012997:Solvents; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
D017705:Lignans; D012997:Solvents; C522684:angeloy gomisin K; C522685:methylisogomisin O; D000431:Ethanol