[Identification of the structure of two new nitro group phenolic glycosides from Schisandra propinqua (Wall. ) Baill var. intermidia A. C. Smith].
OBJECTIVE
To study the bioactive components from Schisandra propinqua (Wall.) Baill var. intermidia A. C. Smith.


METHODS
Compounds were separated with a combination of multichromatography. Their chemical structures were determined on the basis of spectral analysis and chemical evidence.


RESULTS
Seven compounds were isolated from the leaves of Helicia nilagirica. The structures were elucidated as 6'-O-alpha-L-arabinofuranosylthalictoside (1), 6'-O-beta-D-apiofuranosylthalictoside (2), thalictoside (3), icariside D2 (4), prinsepiol (5), (+)-1-hydroxypinoresinol (6) and (+)-medioresinol (7).


CONCLUSIONS
Two compounds are new nitro phenolic glycosides.
Wu
Tong
T
Shanghai Institute of Pharmaceutical Industry, Shanghai 200040, China. Tongwu8@hotmail.com
Kong
De-Yun
DY
Li
Hui-Ting
HT
D004187:Disaccharides / Q000737:chemistry / Q000302:isolation & purification*; D008968:Molecular Conformation; D015394:Molecular Structure; D009574:Nitro Compounds / Q000737:chemistry / Q000302:isolation & purification*; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D032141:Schisandra / Q000737:chemistry*
C494588:6'-O-apiofuranosylthalictoside; C494587:6'-O-arabinofuranosylthalictoside; D004187:Disaccharides; D009574:Nitro Compounds