公开(公告)号：US20240262805A1

公开(公告)日：2024-08-08

申请号：US18624295

申请日：2024-04-02

申请人： EA PHARMA CO., LTD.

发明人： Ryo MINAMIKAWA ,  Akira MATSUTANI ,  Yuya MAGATA ,  Shinji KAWANISHI ,  Mizuki KAWAHIRA

IPC分类号： C07D401/04

CPC分类号： C07D401/04

摘要： Provided is a technique for improving the productivity in a method for producing a compound I or a pharmaceutically acceptable salt thereof. This method for producing the compound I comprises: a step for preparing a compound 16 solution by deprotecting a compound 10-R3 in a solvent; and a step for adding a compound 15 to the compound 16 solution without isolating the compound 16 and synthesizing the compound I in the presence of a condensing agent.