The present invention relates to a method for producing an optically active 3-aminopiperidine or salt thereof. In the method, a racemic nipecotamide is stereoselectively hydrolyzed to obtain an optically active nipecotamide and an optically active nipecotic acid in the presence of an enzyme source derived from an organism, and then the optically active nipecotamide is derived into an optically active aminopiperidine or salt thereof by aroylation, Hofmann rearrangement, deprotection of the amino group and further deprotection; or the optically active nipecotamide is derived into an optically active aminopiperidine or salt thereof by selective protection with BOC, Hofmann rearrangement and further deprotection. It is possible by the present invention to produce an optically active 3-aminopiperidine or salt thereof useful as a pharmaceutical intermediate from an inexpensive and easily available starting material by easy method applicable to industrial manufacturing.
本发明涉及一种制备光学活性
3-氨基哌啶或其盐的方法。在该方法中,利用来源于
生物体的酶源,在立体选择性
水解中得到光学活性的尼佩考胺和光学活性的尼佩考酸,然后通过酰化、霍夫曼重排、
氨基保护基的去除和进一步去保护,或者通过选择性BOC保护、霍夫曼重排和进一步去保护将光学活性的尼佩考胺转化为光学活性的
氨基
哌啶或其盐。本发明可以通过简单的工业制造方法,从廉价易得的起始材料中制备出用于制药
中间体的光学活性
3-氨基哌啶或其盐。