The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 2026
Filed:
Jun. 30, 2022
Applicant:
Meiji Seika Pharma Co., Ltd., Tokyo, JP;
Inventors:
Takeshi Tsumura, Odawara, JP;
Satoshi Isshiki, Tokyo, JP;
Masayuki Okue, Odawara, JP;
Toshiro Sasaki, Odawara, JP;
Kenichi Fushihara, Odawara, JP;
Shinsuke Mouri, Odawara, JP;
Assignee:
MEIJI SEIKA PHARMA CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 487/08 (2006.01);
U.S. Cl.
CPC ...
C07D 487/08 (2013.01);
Abstract
A method for producing a compound represented by formula (1): or a salt thereof, comprising: [in the formula (3), Boc represents a tert-butoxycarbonyl group]or a salt thereof by using a compound represented by formula (2): [in the formula (2),