3’,4’,5,7-tetra-O-benzyl-4β-(2-hydroxyethyloxy)catechin

[4,8']-2,3-trans-3,4-trans:2',3'-cis-octa-O-benzyl-3-O-acetyl-(+)-catechin-(-)-epicatechin

花旗松素

epicatechin-(4β<*>8)-catechin-(4α<*>8)-epicatechin

苄硫醇