Xanthine oxidase inhibitors from Archidendron clypearia (Jack.) I.C. Nielsen: Results from systematic screening of Vietnamese medicinal plants

From this investigation, four Vietnamese medicinal plants were identified to have XO inhibitory effects with IC50 values of the methanol extracts below 30 μg/mL. Compound (−)-7-O- galloyltricetiflavan was identified as an XO inhibitor from A. clypearia with IC50 value of 25.5 μmol/L.