申请人:Takeda Pharmaceutical Company Limited
公开号:US20180186736A1
公开(公告)日:2018-07-05
The present invention provides a production method of a 3-cyanopyrrole compound possibly useful as an intermediate for pharmaceutical products. A production method of compound (II) including subjecting compound (I) to a reduction reaction, in which the aforementioned reduction reaction is continuous hydrogenation reaction in a fixed bed reactor filled with a supported metal catalyst. A production method of compound (III) including subjecting compound (I) to a reduction reaction followed by a cyclization reaction, in which the aforementioned reduction reaction is continuous hydrogenation reaction in a fixed bed reactor filled with a supported metal catalyst.
本发明提供了一种可能用作制药中间体的3-氰基吡咯化合物的生产方法。该方法包括将化合物(I)进行还原反应,其中上述还原反应是在填充有支持金属催化剂的固定床反应器中进行的连续氢化反应,从而得到化合物(II)的生产方法。还提供了一种化合物(III)的生产方法,包括将化合物(I)进行还原反应,然后进行环化反应,其中上述还原反应是在填充有支持金属催化剂的固定床反应器中进行的连续氢化反应。