Patent search ap:("Eisai R&D Management Co. Page Ltd.") AND inv:"Takeshi Miura"

1.

发明申请
METHOD AND COMPOUND USEFUL IN PREPARATION OF OREXIN-2 RECEPTOR ANTAGONIST, AND LEMBOREXANT HAVING FEW IMPURITIES 有权

公开(公告)号：US20220194925A1

公开(公告)日：2022-06-23

申请号：US17604527

申请日：2020-05-13

Applicant: Eisai R&D Management Co., Ltd.

Inventor： Taichi Abe , Kazuhiro Yoshizawa , Yuzo Watanabe , Takeshi Miura , Yusuke Ayata , Yoshinori Yasuda

IPC: C07D401/12 , C07C41/09 , C07D239/34

Abstract: The present application discloses a method and a compound that are useful for preparation of a compound of Formula (XI). Furthermore, the present application discloses the compound of Formula (XI) comprising a small amount of impurities.

Patent Agency Ranking