申请人:Kyorin Pharmaceutical Co., Ltd.
公开号:EP2322499A1
公开(公告)日:2011-05-18
The present invention herein provides a process for production or a bicyclo[2.2.2]octylamine derivative which may be used as an intermediate for preparation of medical and pharmaceutical products. The process is quite efficient and can produce the derivative in a large-scale while using mild reaction conditions.
The process for producing a bicyclo[2.2.2]octylamine derivative comprises the steps of subjecting, to ring-formation, a compound represented by the following general formula (1):
[wherein R1 represents an alkyl group having 1 to 6 carbon atoms, which may have a substituent; an arylmethyl group which may have a substituent; or an arylethyl group which may have a substituent], and a compound represented by the following general formula (2):
R2-NH2 (2)
[wherein R2 represents an alkyl group having 1 to 6 carbon atoms, which may have a substituent; an aralkyl group which may have a substituent; a hydroxyl group; an alkyloxy group having 1 to 6 carbon atoms, which may have a substituent; or an aralkyloxy group which may have a substituent], and then reducing the resulting product.
本发明提供了一种双环[2.2.2]辛胺衍生物的生产工艺,该衍生物可用作制备医疗和制药产品的中间体。该工艺相当高效,可在温和的反应条件下大规模生产该衍生物。
生产双环[2.2.2]辛胺衍生物的工艺包括以下步骤:将通式(1)所代表的化合物进行环化反应:
[其中 R1 代表具有 1 至 6 个碳原子的烷基,该烷基可以具有一个取代基;芳甲基,该 芳甲基可以具有一个取代基;或芳乙基,该芳乙基可以具有一个取代基],以及下 列通式(2)所代表的化合物:
R2-NH2 (2)
[其中 R2 代表一个具有 1 至 6 个碳原子的烷基,该烷基可能具有一个取代基;一个芳烷基,该芳基可能具有一个取代基;一个羟基;一个具有 1 至 6 个碳原子的烷氧基,该烷氧基可能具有一个取代基;或一个芳烷氧基,该芳基可能具有一个取代基],然后还原所得产物。