In the title compound, C15H17N3O2, the dihedral angle between the planes of the pyrazolidine and phenyl rings is 29.91 (6). The piperidine ring adopts a chair conformation. In the crystal, molecules are linked into chains running parallel to the a-axis direction by a combination of N—H O and C—H O hydrogen bonds. Furthermore, there exist C—H interactions and – stacking ... إقراء المزيد