公开(公告)号：US20180065990A1

公开(公告)日：2018-03-08

申请号：US15697723

申请日：2017-09-07

Applicant: DSM IP ASSETS B.V.

Inventor： Werner BONRATH ,  Kun PENG ,  Lei ZHANG ,  Zhibin ZHU

IPC: C07D513/04

CPC classification number: C07D513/04 ,  C07D495/04

Abstract: The present invention provides a new process for the preparation of a substituted imidazothiazolone compound. The process of the present invention uses a fluoride-free Lewis acid which is cheap and friendly to environment, and provide high selectivity and yield.

公开(公告)号：US20210040119A1

公开(公告)日：2021-02-11

申请号：US17080516

申请日：2020-10-26

Applicant: DSM IP ASSETS B.V.

Inventor： Werner BONRATH ,  Kun PENG ,  Lei ZHANG ,  Zhibin ZHU

IPC: C07D513/04 ,  C07D495/04

Abstract: The present invention provides a new process for the preparation of a substituted imidazothiazolone compound. The process of the present invention uses a fluoride-free Lewis acid which is cheap and friendly to environment, and provides high selectivity and yield.