Identification of the structure of two new nitro group phenolic glycosides from Schisandra propinqua (Wall. ) Baill var. intermidia A. C. Smith / 药学学报

ABSTRACT

<p><b>AIM</b>To study the bioactive components from Schisandra propinqua (Wall.) Baill var. intermidia A. C. Smith.</p><p><b>METHODS</b>Compounds were separated with a combination of multichromatography. Their chemical structures were determined on the basis of spectral analysis and chemical evidence.</p><p><b>RESULTS</b>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).</p><p><b>CONCLUSION</b>Two compounds are new nitro phenolic glycosides.</p>