| Application no. and date | 20806704.1 (espacenet) (Federated) (European Patent Register), 20200513 | | Patent/reg. no. and date | DK/EP 3971164, 20250129 | | Publication date | 20220323 | | Priority no. and date | JP 2019092254, 20190515, JP 2019238904, 20191227 | | EP pub. no. and date |
EP 3971164 20220323 | | Effective date | | | Applicant/owner | Eisai R&D Management Co., Ltd., 4-6-10 Koishikawa
Bunkyo-ku
Tokyo 112-8088, JP | | Applicant ref. no. | | | Inventor | ABE, Taichi, C/O Eisai Co., Ltd.
Kashima Plant
22, Sunayama
Kamisu-shi, Ibaraki 314-0255, JP,
YOSHIZAWA, Kazuhiro, C/O Eisai Co., Ltd.
Kashima Plant
22, Sunayama
Kamisu-shi, Ibaraki 314-0255, JP,
WATANABE, Yuzo, C/O Eisai Co., Ltd.
Kashima Plant
22, Sunayama
Kamisu-shi, Ibaraki 314-0255, JP,
MIURA, Takeshi, C/O Eisai Co., Ltd.
Kashima Plant
22, Sunayama
Kamisu-shi, Ibaraki 314-0255, JP,
AYATA, Yusuke, C/O Eisai Co., Ltd.
Kashima Plant
22, Sunayama
Kamisu-shi, Ibaraki 314-0255, JP,
YASUDA, Yoshinori, C/O Eisai Co., Ltd.
Kashima Plant
22, Sunayama
Kamisu-shi, Ibaraki 314-0255, JP | | Representative | | | Opponent | | | IPC Class | A61K 31/506 (2006.01) , A61P 25/20 (2006.01) , A61P 43/00 (2006.01) , C07B 61/00 (2006.01) , C07C 29/147 (2006.01) , C07C 303/28 (2006.01) , C07C 309/73 (2006.01) , C07C 33/50 (2006.01) , C07C 67/14 (2006.01) , C07C 69/63 (2006.01) , C07D 239/34 (2006.01) , C07D 401/12 (2006.01) | | Title | METHOD AND COMPOUND USEFUL IN PREPARATION OF OREXIN-2 RECEPTOR ANTAGONIST, AND LEMBOREXANT HAVING FEW IMPURITIES | | Int. application no. | JP2020019037 | | Int. publication no. | WO2020230800 | | Related patent (certificate) | | | Status | Enhedspatent registreret | | Pædiatrisk forlængelse | - | | Udløbsdato for pædiatrisk forlængelse | - |
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