Amurensin H(1) is a new resveratrol dimer isolated from the roots of Vitis , amurensis Rupr. Its structure was determined by spectroscopic methods. It was synthesized from resveratrolwith an oxidative coupling reaction as a key step. Its structure was determined from spectroscopic methods. It was synthesized from resveratrol with an oxidative coupling reaction as a key step. Amurensin H (1) is a new resveratrol dimer from the roots of Vitis, amurensis Rupr.