In the title compound, C(23)H(26)BrNO(4), the piperidinone ring adopts a boat conformation. The dihedral angle between the two benzene rings is 70.9 (1)°. The two meth-oxy groups are close to coplanar with the attached benzene rings [C-C-O-C torsion angles of 6.3 (5) and 16.4 (4)°]. A weak C-H⋯Br intra-molecular inter-action is observed. In the crystal structure, mol-ecules are linked into a chain along [101] by inter-molecular C-H⋯O hydrogen bonds. A short inter-molecular Br⋯O contact [3.063 (2) Å] is observed.