In the title compound, C(31)H(32)BrN(3)O(3), the morpholine ring adopts a chair conformation, and the planar quinoline system is twisted with respect to the phenyl rings, with dihedral angles of 17.6 (4) and 75.1 (3)°. Intramolecular C-H⋯O and C-H⋯N hydrogen bonds are present. The crystal packing is stabilized by weak C-H⋯O hydrogen bonding and C-H⋯π interactions.