1-Benzyl-4-[N-ethyl-N-(3-amino-2-pyridinyl)amino]methyl piperidine 、
ethyl acetate n-hexane 以gives the title compound, NMR (300 MHz, CD3OD) 7.52, 7.21, 6.93, 3.56, 3.42, 2.90, 2.81, 1.86, 1.64, 1.33, 1.22, 1的产率得到1-Benzyl-4-[N-ethyl-N-(3-isopropylamino-2-pyridinyl)amino]methylpiperidine