Isorhapontigenin (13) and piceatannol (14) were prepared from 3,5-dihydroxybenzoic acid in six steps. Oxidative coupling of 13 and 14 with HRP/H2O2 gave their respective dimeric compounds.

• 以3；5-二羟基苯甲酸(4)为起始原料；经六步反应制得异丹叶大黄素(13)和白皮杉醇(14)；在HRP/H2O2酶催化氧化体系中；13和14分别进行自身的氧化偶联得到各自的二聚产物.