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Structures of compounds isolated from Vitis vinifera seed extract. 2-(Benzofuran-5-yloxy) benzofuran-5-ol 28, benzofuran 29 [20], 4-(4-hydroxyphenoxy)-3,5-dihydroxybenzaldehyde 30 [21]. (-)-Epi-catechin 31 [14], catechin 32 [14], procyanidin B2 33 [14], ursolic acid 34 [22], β-sitosterol 35 [23], β-sitosterol-3-O-glucopyranoside 36 [24].
