A benzenoid from the stem of Acanthopanax senticosus

Seven compounds were isolated from the stem of Acanthopanax senticosus by repeated column chromatography. Their structures were elucidated as isovanillin ( 1 ), (-)-sesamin ( 2 ), isofraxidin ( 3 ), (+)-syringaresinol ( 4 ), 5-hydroxymethylfurfural ( 5 ), eleutheroside B ( 6 ), and eleutheroside E ( 7 ) by spectral analysis. Among them, isovanillin ( 1 ) was isolated for the first time from the family Araliaceae.