Bioactive galloyl flavans from the stems of .

Three new flavans, (2)-7--galloyl-5,3',4'-trihydroxyflavan (), (2)-7,3--digalloyl-5,4-dihydroxyflavan (), and (2)-7,4--digalloyl-5,3-dihydroxyflavan (), together with four known compounds, (2)-5,7,3',4'-tetrahydroxyflavan (), (-)-epicatechin (), (-)-syringaresinol (), and methyl gallate () have been isolated from the EtOAc extract of the stems of . Compounds and were obtained as a mixture of positional isomers. The structures of the isolated compounds were established using extensive spectroscopic data.