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Note | Regular issue | Vol 78, No. 10, 2009, pp.2541-2548
Published online, 19th June, 2009
DOI: 10.3987/COM-09-11754
Flavonol Glycosides from the Native American Plant Gaura longiflora

Wen-Hui Xu, Melissa R. Jacob, Ameeta K. Agarwal, Alice M. Clark, Zong-Suo Liang, and Xing-Cong Li*

*National Center for Natural Products Research, Research of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, University , MS 38677, U.S.A.


Phytochemical investigation of the native American plant Gaura longiflora led to the isolation of three new and eight known flavonol glycosides. The structures of the new compounds were established primarily by spectroscopic data as quercetin 3-O-(2''-O-α-L-rhamnopyranosyl-6''-O-E-p-coumaroyl)-β-D- glucopyranoside (1), kaempferol 3-O-(2''-O-α-L-rhamnopyranosyl-6''-O-E-p- coumaroyl)-β-D-glucopyranoside (2) and quercetin 3-O-(2″-O-α-L-rhamno- pyranosyl-6''-O-Z-p-coumaroyl)-β-D-glucopyranoside (3).