Abstract
In this study, the acetone-soluble parts of the stem bark of Shorea uliginosa were analyzed and three new resveratrol trimers, that is, uliginosides E–G (1–3), were isolated. The structures of these isolates were established on the basis of spectroscopic analyses, including detailed NMR and CD spectroscopy. Trimers 1–3 are rare di-C-glucosylated derivatives with two RS-4-C-β-glucopyranoside building blocks.
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