1 State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China.
In the title compound, C(17)H(23)N(3), both piperidine rings adopt chair conformations. In the crystal packing, intermolecular C-H⋯N hydrogen bonds and C-H⋯π interactions are present.