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Cuneatoside, a new megastigmane diglycoside from Erythroxylum cuneatum Blume
T Kanchanapoom1, A Sirikatitham, H Otsuka
1Faculty of Pharmaceutical Sciences, Department of Pharmaceutical Botany and Pharmacognosy, Khon Kaen University, Khon Kaen, 40002, Thailand. trikan@kku.ac.th
Abstract:
A new megastigmane diglycoside, inamoside 6'-O-L-alpha-arabinofuranoside (cuneatoside), was isolated from the leaves and branches of Erythroxylum cuneatum together with seven known compounds, (+)-catechin, quercetin 3-O-alpha-L-rhamnoside, apocynol B, (6S,9R)-roseoside, vomifoliol 9-O-alpha-L-arabinofuranosyl (1-->6)-beta-D-glucopyranoside, inamoside, and citroside A The structural elucidations were based on analyses of physical and spectroscopic data.
