Occurrence of non-heterocyclic resveratrol tetramer in Vatica chinensis

A resveratrol (Res) tetramer, vaticanol L (1), was isolated from the stem of Vatica chinensis (Dipterocarpaceae). The structure was identified on the basis of spectroscopic evidence and absolute configuration elucidated from circular dichroism data. This is the first report on oligostilbenoids that shows the occurrence of a Res tetramer without a heterocyclic ring. A biogenetic pathway to 1 is proposed. (C) 2015 Phytochemical Society of Europe. Published by Elsevier B. V. All rights reserved.