Resveratrol oligomers and their O-glucosides from Cotylelobium lanceolatum |
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Authors: | Ito Tetsuro Ali Zulfiqar Furusawa Miyuki Iliya Ibrahim Tanaka Toshiyuki Nakaya Ken-Ichi Murata Jin Darnaedi Dedy Iinuma Munekazu |
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Institution: | Gifu Prefectural Institute of Health and Environmental Sciences, Naka-fudogaoka, Kakamigahara, Japan. zvn00510@nifty.com |
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Abstract: | Three new resveratrol oligomers, cotylelophenol C (1) (resveratrol tetramer) and cotylelosides A (2) and B (3) (O-glucosides of resveratrol trimer), together with four known glucosides of resveratrol oligomers (vaticasides A, B, C, D) and piceid, were isolated from an acetone soluble part of stem of Cotylelobium lanceolatum (Dipterocarpaceae). The structures of new compounds were determined by spectral data analysis. The characteristic properties observed in the NMR spectra of 1 were also discussed. |
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