A flavonoid glycoside was isolated from Anthocepharus chinensis. Its s
tructure was elucidated by spectral data and determined to be myriceti
n 3-O-(4 ''-acetyl)-alpha-fucoside. This flavonoid glycoside and its a
glycone showed potent inhibition against rat and lens aldose reductase
. The flavonoid aglycone also inhibited sorbitol accumulation in human
red blood cells.