In the title compound, C28H24N2O4, the dihedral angle between the two rings of the biphenyl unit is 75.34 (9)°. The outer aromatic rings form dihedral angles of 66.96 (1) and 85.69 (8)° with the rings to which they are attached . The molecular structure is stabilized by intramolecular C—H⋯O and N—H⋯O hydrogen bonds. In the crystal structure, intermolecular N—H⋯O interactions are observed