公开(公告)号：US20230192685A1

公开(公告)日：2023-06-22

申请号：US17927584

申请日：2021-05-26

Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED

Inventor： Hitoaki NISHIKAWA ,  Naohiro TAYA ,  Hiroshi BANNO ,  Masatoshi YAMADA ,  Kazuki AZUMA ,  Ayaka SUZUKI

IPC: C07D471/04

CPC classification number: C07D471/04

Abstract: A method for producing a compound represented by the formula (X):




or a salt thereof and has a MALT1 inhibitory action, the said method containing a step for producing a compound a compound represented by the formula (B-2):




or a salt thereof and being characterized by comprising crystallizing a salt of a compound represented by the formula (B-1)




and an optically active organic acid.

(In the formulae, each symbol is as defined in the specification.)