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:
Jan. 29, 2019
Filed:
Apr. 22, 2016
Applicant:
Daiichi Sankyo Company, Limited, Tokyo, JP;
Inventors:
Masayuki Murakami, Hiratsuka, JP;
Yuichi Aki, Hiratsuka, JP;
Daisuke Fukatsu, Hiratsuka, JP;
Kenichi Kimura, Hiratsuka, JP;
Makoto Michida, Hiratsuka, JP;
Koji Hamaoka, Hiratsuka, JP;
Assignee:
DAIICHI SANKYO COMPANY, LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 295/155 (2006.01); C07D 227/04 (2006.01); C07C 227/04 (2006.01); C07C 227/42 (2006.01); C07C 229/48 (2006.01); C07C 229/52 (2006.01); C07D 295/14 (2006.01); C07C 205/57 (2006.01); C07C 227/06 (2006.01); C07C 227/10 (2006.01); C07C 227/36 (2006.01); A61K 31/4453 (2006.01); C07B 61/00 (2006.01); C07C 227/08 (2006.01);
U.S. Cl.
CPC ...
C07D 295/155 (2013.01); C07C 205/57 (2013.01); C07C 227/04 (2013.01); C07C 227/06 (2013.01); C07C 227/10 (2013.01); C07C 227/36 (2013.01); C07C 227/42 (2013.01); C07C 229/48 (2013.01); C07C 229/52 (2013.01); C07D 227/04 (2013.01); C07D 295/14 (2013.01); A61K 31/4453 (2013.01); C07B 61/00 (2013.01); C07C 227/08 (2013.01); C07C 2601/14 (2017.05);
Abstract
It is an object of the present invention to provide an excellent method for producing an excellent therapeutic agent. The solution of the present invention is as shown in the following scheme: wherein Rrepresents a C1-C6 alkyl group, Rrepresents a C1-C6 alkyl group, and Rrepresents a C1-C6 alkyl group.