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Two new flavonol glycosides, tamarixetin 3-O-β-D-xylopyranosyl-(1-2)-α-L-ribopyranoside (1) and tamarixetin 3-O-α-L-ribopyranoside (2) were isolated from the leaves of Bridelia tomentosa. Their structures were elucidated by 1D and 2D NMR analysis, as well as MS and IR spectra.