SMILES: C1[C@H]([C@H](OC2=C1C(=CC3=C2[C@@H]4[C@H]([C@](O3)(OC5=CC(=CC(=C45)O)O)C6=CC(=C(C(=C6)O)O)O)O)O)C7=CC(=C(C=C7)O)O)O
Description: The molecule is a proanthocyanidin that is a doubly linked dimer composed of (-)-epicatechin and (-)-epigallocatechin as its flavanol units. Isolated from the wood of Xanthoceras sorbifolium, it exhibits inhibitory activity towards HIV-1 protease. It has a role as a metabolite and a HIV protease inhibitor. It derives from a (-)-epigallocatechin and a (-)-epicatechin.