公开(公告)号：US20230348420A1

公开(公告)日：2023-11-02

申请号：US18002291

申请日：2021-06-24

Applicant: Novartis AG

Inventor： Nicolas AMIOT ,  Darija DEDIC ,  Peng FU ,  Fabrice GALLOU ,  Xingxian GU ,  Cornelius HARLACHER ,  Siqian LIU ,  Shuping YAO ,  Jiong YE ,  Jianguang ZHOU

IPC: C07D401/12 ,  C07D401/14 ,  C07D237/08 ,  C07D231/14

CPC classification number: C07D401/12 ,  C07D401/14 ,  C07D237/08 ,  C07D231/14

Abstract: The invention relates to a novel process, novel process step(s) and novel intermediate(s) useful for the preparation of 1,4-disubstituted pyridazine compounds, such as 5-(1H-Pyrazol-4-yl)-2-(6-((2,2,6,6-tetramethylpiperidin-4-yl)oxy)pyridazin-3-yl)phenol.