ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, cilt.68, 2012 (ESCI)
In the title compound, C18H21N3O3, the terminal phenyl rings make a dihedral angle of 86.3 (5)degrees. In the crystal, molecules are linked by N-H center dot center dot center dot O hydrogen bonds into chains along [001], forming parallel C(4) and R-1(2) (6) graph-set motifs.