A new coumaric acid derivative called acancifoliuside (1) and six known compounds as acteoside (2), isoacteoside (3), acanthaminoside (4), (+)-lyoniresinol 3a-O-beta-glucopyranoside (5), (-)-lyoniresinol (6), and alpha-amyrin (7), were isolated from the methanolic extract of the leaves of Acanthus