Absolute structures of C-glucosides of resveratrol oligomers from Shorea uliginosa |
| |
Authors: | Tetsuro Ito Naohito Abe Masayoshi Oyama Munekazu Iinuma |
| |
Institution: | Laboratory of Pharmacognosy, Gifu Pharmaceutical University, 5-6-1 Mitahora-higashi, Gifu 502-8585, Japan |
| |
Abstract: | Two C-glucosides of resveratrol dimers (uliginoside A (1) and hemsleyanoloside B (2)) consisting of enantiomeric aglycones and two C-glucosides of resveratrol trimers (uliginosides B (3) and C (4)) consisting of diastereomeric aglycones were isolated from Shorea uliginosa (Dipterocarpaceae). These structures were elucidated by spectroscopic analysis including NMR experiments, and their absolute configurations were determined based on circular dichroism data. Resveratrol oligomers of C-glucosides with a 1,2-diaryldihydrobenzofuran ring are produced with specific biogenetic routes. |
| |
Keywords: | Absolute structure C-Glucoside ε-Viniferin Enantiomeric aglycone Diastereomeric aglycone Shorea uliginosa Dipterocarpaceae |
本文献已被 ScienceDirect 等数据库收录! |