Phenolic glucoside gallates from quercus mongolica and q. acutissima

Six phenolic glucoside gallates: D-threo-guaiacylglycerol 8-O-, L-threo-guaiacylglycerol 8-O-, 3-methoxy-4-hydroxyphenol 1-O-, gentisic acid 5-O-, 3,5- dimethoxy-4-hydroxyphenol 1-O- and cis-coniferyl alcohol 4-O-β-D-(6′-O-galloyl)glucopyranosides were isolated from Quercus mongolica and Q. acutissima.