Abstract
The asymmetric unit of the title compound, C25H29N3O, comprises two crystallographically independent molecules. The dihedral angles between the benzene rings in the two molecules are 59.7 ( 2) and 61.27 ( 18)degrees. The cyclohexene rings adopt sofa and half-chair conformations. In the crystal, molecules are connected via N-H...O and weak C-H...O hydrogen bonds, forming chains along the a axis. In each molecule, there is an intramolecular N-H...O hydrogen bond.