[3-(1-pyridin-2-yl-ethylamino)-propyl]-carbamic acid tert-butyl ester   、                                                                                      
3-甲基-2-吡啶醛   、                                                                                      
三乙酰氧基硼氢化钠                                                                                                                                                                                              以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以gave {3-[(3-methyl-pyridin-2-ylmethyl)-(1-pyridin-2-yl-ethyl)-amino]-propyl}-carbamic acid tert-butyl ester as a colorless oil的产率得到{3-[(3-methyl-pyridin-2-ylmethyl)-(1-pyridin-2-yl-ethyl)-amino]-propyl}-carbamic acid tert-butyl ester