Novel isolation of resveratrol dimer O-glucosides with enantiomeric aglycones from the leaves of Shorea cordifolia

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• 作者：Tetsuro Ito ; Kouko Nishiya ; Masayoshi Oyama ; Toshiyuki Tanaka ; Jin Murata ; Dedy Darnaedi ; Munekazu Iinuma
• 关键词：Absolute configuration ; Resveratrol dimer ; Enantiomer ; O-glucoside ; Shorea cordifolia ; Dipterocarpaceae
• 刊名：Phytochemistry Letters
• 出版年：2013
• 出版时间：November, 2013
• 年：2013
• 卷：6
• 期：4
• 页码：667-670
• 全文大小：523 K

文摘

Two O-glucosides of resveratrol dimers, ampelopsin F-11b-O-¦Â-glucopyranosides with enantiomeric aglycones [cordifoloside A (1) and cordifoloside B (2)] and an enantiomer of the aglycone [(?)-ampelopsin F] were isolated from the leaves of Shorea cordifolia (Dipterocarpaceae). These structures were identified on the basis of spectroscopic evidence and their absolute configurations were elucidated using circular dichroism data. This is the first report on oligostilbenoids that demonstrates the co-occurrence of diastereomeric O-glucosides with enantiomeric aglycones in this family.