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Abstract
Phytochemical investigations of the fruits of Stocksia brauhica (Sapindaceae) resulted in the isolation of a new acylated flavone glycoside. Its structure of the new compound brauhenefloroside D (1) was established as 3-O-[(α-L-rhamnopyranosyl)oxy]-7-O-[(acetyl)-β-D-glucopyranosyl (1 → 4)]-[6-O-(4-hydroxy-E-cinnamoyl)-β-D-glucopyranosyl-(1 → 2)-α-L-rhamnopyranosyl)-oxy]-kaempferol. The structure elucidation of the new compound was based primarily on 1D and 2D NMR analysis, including COSY, HMBC and HMQC correlations.