{4-[(3-Phenyl-pyridin-2-ylmethyl)-amino]-butyl}-carbamic acid tert-butyl ester 、
3,5-二甲基-2-吡啶甲醛 、
三乙酰氧基硼氢化钠 以gave {4-[(3,5-Dimethyl-pyridin-2-ylmethyl)-(3-phenyl-pyridin-2-ylmethyl)-amino]-butyl}-carbamic acid tert-butyl ester as a colorless oil的产率得到{4-[(3,5-dimethyl-pyridin-2-ylmethyl)-(3-phenyl-pyridin-2-ylmethyl)-amino]-butyl}-carbamic acid tert-butyl ester