Two Benzyl Dihydroflavones from Phellinus igniarius

Two new benzyl dihydroflavones phelligrins A and B were isolated from the fruit body of Phellinus igniarius. Their structrues were identified as 5, 7, 4'-trihydroxy-6-O-hydroxybenzyl -dihydroflavone and 5, 7, 4'-trihydroxy-8-O-hydroxybenzyldihydroflavone, respectively, by means of spectral methods.