Lignans from Wikstroemia hainanensis

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.