ethyl [1-(5-nitropyridin-2-yl)piperidin-4-yl]acetate 、
氢气 在
钯 ethyl [1-(5-aminopyridin-2-yl)piperidin-4-yl]acetate 作用下,
以
四氢呋喃 为溶剂,
反应 0.5h,
以yielding (5′-amino-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-yl)-acetic acid ethyl ester (intermediate 2)的产率得到ethyl [1-(5-aminopyridin-2-yl)piperidin-4-yl]acetate