NOVEL KAEMPFEROL TRIGLYCOSIDE FROM FLOWER BUDS OF PANAX QUINQUEFOLIUM

摘要

Three kaempferol glycosides were isolated from the flower buds of Panax quinquefolium L. ogether with kaempfcroi (1). By means of chemical and spectroscopic methods (NMR, ESI-MS, 2D-NMR their structures were established as trifolin (2), panasenoside (3), and kaempferol-3-O-β-D-glucosyl(l→2)-β-D.galactoside-7-O-α-L-rhamnoside (4).Compound 4 is a new compound.