Three sinapoyl glycosides have been isolated from the roots of Polygal
a virgata. The structures were established on the basis of UV, mass, H
-1 and C-13 NMR spectral data, including homonuclear and heteronuclear
2D shift correlation and selective INEPT experiments. l-alpha-D-(3-O-
acetyl-6-O-sinapoyl)glucopyranoside and l-alpha-D-(4-O-acetyl-6-O-sina
poyl)glucopyranoside are new natural products, whereas ctofuranosyl-al
pha-D-(6-O-sinapoyl)glucopyranoside has already been reported from oth
er plants.