Lignans fromWikstroemia hainanensis

Abstract

The structures and conformations of three new lignans, wikstrone (1), wikstroemol (2), and wikstroemone (3) – isolated from the aerial parts of Wikstroemia hainanensis – were determined, together with those of twelve known compounds, including erythro-guaiacylglycerol-β-O-4′-sinapyl ether (4). The configuration of 4, falsely assigned in the literature (threo configuration), was redetermined, and the compound was identified as erythro-guaiacylglycerol-β-O-4′-sinapyl ether.