procyanidin C4

苄硫醇

5,7,3',4'-tetra-O-benzyl-4α-(5,7,3',4'-tetra-O-benzylcatechin)catechin

8-bromo-3,5,7,3',4'-penta-O-benzyl-catechin-(4α->8)-3,5,7,3',4'-penta-O-benzyl-catechin

3’,4’,5,7-tetra-O-benzyl-8-bromocatechin-(4α8)-3’,4’,5,7-tetra-O-benzylcatechin