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:
May. 03, 2022
Filed:
Aug. 30, 2018
Applicant:
Daiichi Sankyo Company, Limited, Tokyo, JP;
Inventors:
Yoshio Nishi, Tokyo, JP;
Kohei Sakanishi, Tokyo, JP;
Shigeru Noguchi, Tokyo, JP;
Tadahiro Takeda, Tokyo, JP;
Assignee:
DAIICHI SANKYO COMPANY, LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 47/68 (2017.01); C07C 231/12 (2006.01); C07C 233/15 (2006.01); C07C 233/33 (2006.01); C07C 233/54 (2006.01); C07D 491/22 (2006.01); C07K 5/103 (2006.01); C07K 16/00 (2006.01); C07K 16/28 (2006.01); C07K 16/30 (2006.01); C07K 16/32 (2006.01);
U.S. Cl.
CPC ...
A61K 47/6889 (2017.08); A61K 47/6803 (2017.08); C07C 231/12 (2013.01); C07C 233/15 (2013.01); C07C 233/33 (2013.01); C07C 233/54 (2013.01); C07D 491/22 (2013.01); C07K 5/1008 (2013.01); C07K 16/00 (2013.01); C07K 16/28 (2013.01); C07K 16/2827 (2013.01); C07K 16/30 (2013.01); C07K 16/32 (2013.01);
Abstract
A method for producing a compound represented by formula (C) wherein Rrepresents an amino group protected with a protecting group, the method comprising a step of subjecting a compound represented by formula (B) wherein Rrepresents the same meaning as above, to intramolecular cyclization to convert the compound into the compound represented by formula (C).