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:
Apr. 10, 2018
Filed:
Sep. 17, 2015
Applicant:
Daiichi Sankyo Company, Limited, Tokyo, JP;
Inventors:
Tsuyoshi Ueda, Kanagawa, JP;
Kazutoshi Ukai, Kanagawa, JP;
Assignee:
Daiichi Sankyo Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 233/64 (2006.01); A61K 31/417 (2006.01); C07B 61/00 (2006.01); C07B 53/00 (2006.01);
U.S. Cl.
CPC ...
C07D 233/64 (2013.01); A61K 31/417 (2013.01); C07B 53/00 (2013.01); C07B 61/00 (2013.01); C07B 2200/07 (2013.01); Y02P 20/55 (2015.11);
Abstract
A method for producing a compound (3), which comprises allowing a compound (1) to react with hydrogen gas in an inert solvent, in the presence of a specific chiral ligand and a ruthenium catalyst, or in the presence of an asymmetric transition metal complex catalyst previously generated from the chiral ligand and the ruthenium catalyst.