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【正】Besides(-)-epicatechin,epicatechin-(4β-8 )-epicatechin(procyanidin B2),epicatechin-(4β-6 )-epicatechin (procyanidin B5),epicatechin-(4β-8,2β-O-7)-epicatechin(proanthocyanidin A2) and epicatechin- (4β-8)-epicatechin-(4β-8)-epicatechin(procyanidin C1),wh