METHOD FOR PREPARING 2-[(3R)-3-METHYLMORPHOLIN-4-YL]-4-[1-METHYL-1H-PYRAZOL-5-YL)-8-(1H-PYRAZOL-5-YL)-1,7-NAPHTHYRIDINE
申请人:Bayer Aktiengesellschaft
公开号:US20210253573A1
公开(公告)日:2021-08-19
The present invention covers a method for preparing 2-[(3R)-3-methylmorpholin-4-yl]-4-(1-methyl-1H-pyrazol-5-yl)-8-(1H-pyrazol-5-yl)-1,7-naphthyridine (“the compound of formula (I)” in the following) as well as intermediate compounds useful in the preparation of the compound of formula (I). The present invention also covers polymorphic form B of the compound of formula (I) with very high purity.