“…The chemical study of B. fagaroides through the years allowed the characterization of 19 lignan structures (Figure 4) named: podophyllotoxin (1) [19,27], β-peltatin-A-methylether (2) [19,26], 5 desmethoxy-β-peltatin-A-methylether (3) [19,26,38], desoxypodophyllotoxin (4), acetyl podophyllotoxin (5) [19,27], morelensin (6) [19,27,39], burseranin (7) [19], acetylpicropodophyllotoxin (8) [40], desmethoxy-yatein (9), yatein (10) [19,40], hinokinin (11) [40], 7 ,8 -dehydropodophyllotoxin (12), 7 ,8 -dehydroacethyl podophyllotoxin (13), 7 ,8 -dehydro trans-p-cumaroylpodophyllotoxin (14) [20], 9-acetyl-9 -pentadecanoildihydroclusin (15), 2,3-demethoxy-secoisolintetralin diacetate ( 16), dihydroclusin diacetate (17), 2,3-demethoxy-secoisolintetralin monoacetate (18) dihydroclusin mono acetate (19) [25]. Eight of these are aryltetralin (1-8), three are dibenzylbutyrolactone (9-11), three are aryldihydronaphtalene (12)(13)(14), and five are dibenzylbutane lignans (15)(16)(17)(18)(19).…”