Takeda Pharmaceutical Company Limited
Method for producing heterocyclic compound

Abstract:

The present invention provides a production method of heterocyclic compound having an excellent CH24H inhibitory action, which is suitable for industrial production. In the present invention, a 2-halogenonicotinic acid or a reactive derivative thereof or a salt thereof is reacted with 4-benzyl-4-hydroxypiperidine acid addition salt to give a (4-benzyl-4-hydroxypiperidin-1-yl) (2-halogenopyridin-3-yl)methanone or a salt thereof, and then the obtained compound is reacted with pyridine-4-boronic acid or a reactive derivative thereof or a salt thereof in the presence of a metal catalyst and a base to give (4-benzyl-4-hydroxypiperidin-1-yl) (2,4'- bipyridin-3-yl)methanone or a salt thereof.