A process comprising: (a) reduction of N-acetyl-3-aminopyridine (2): or its salt in the presence of hydrogen and a palladium catalyst deposited on solid support; (b) converting racemic N-acetyl-3-aminopiperidine (3) or its salt produced in step (a) to rac-3-aminopiperidine (rac-4) or its salt; (c) resolution of the racemic 3-aminopiperidine (rac-4) or its salt produced in step (b) with a chiral acid.
                            一种包括以下步骤的过程:(a) 在氢和沉积在固体载体上的
钯催化剂存在下还原N-乙酰-3-
氨基吡啶(2)或其盐;(b) 将在步骤(a)中产生的外消旋N-乙酰-
3-氨基哌啶(3)或其盐转化为外消旋
3-氨基哌啶(rac-4)或其盐;(c) 用手性酸分离在步骤(b)中产生的外消旋
3-氨基哌啶(rac-4)或其盐。