In the title compound, C(32)H(35)BrN(4)O(3), the piperazine ring exists in a chair conformation. The quinoline ring system is oriented at dihedral angles of 82.70 (17) and 19.54 (17)° to the phenyl and meth-oxy-phenyl rings, respectively. Weak inter-molecular C-H⋯π inter-actions are present in the crystal structure.