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Novel isolation of resveratrol dimer O-glucosides with enantiomeric aglycones from the leaves of Shorea cordifolia |
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| Authors: | Tetsuro Ito Kouko Nishiya Masayoshi Oyama Toshiyuki Tanaka Jin Murata Dedy Darnaedi Munekazu Iinuma |
| Institution: | 1. Laboratory of Pharmacognosy, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan;2. Laboratory of Medicinal Resources, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan;3. Botanical Gardens, Koishikawa, Graduate School of Science, University of Tokyo, 3-7-1, Hakusan, Bunkyo-Ku, Tokyo 112-0001, Japan;4. Research and Development Center for Biology, Indonesian Institute of Sciences (LIPI), Jalan Ir. H. Juanda 13, Bogor 16122, Indonesia |
| Abstract: | Two O-glucosides of resveratrol dimers, ampelopsin F-11b-O-β-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. |
| Keywords: | Absolute configuration Resveratrol dimer Enantiomer Dipterocarpaceae |
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