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:
Jun. 04, 2019
Filed:
Apr. 11, 2018
Applicant:
Daiichi Sankyo Company, Limited, Chuo-ku, Tokyo, JP;
Inventors:
Assignee:
Daiichi Sankyo Company, Limited, Chuo-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07B 57/00 (2006.01); C12P 17/10 (2006.01); C12P 41/00 (2006.01); C07D 207/34 (2006.01); C07D 207/456 (2006.01);
U.S. Cl.
CPC ...
C07D 207/34 (2013.01); C07B 57/00 (2013.01); C07D 207/456 (2013.01); C12P 17/10 (2013.01); C12P 41/005 (2013.01);
Abstract
The present invention provides a method for producing an atropisomer of a pyrrole derivative having excellent mineralocorticoid receptor antagonistic activity, and an intermediate thereof. A method for producing an atropisomer of a pyrrole derivative using a compound represented by (B) [wherein Rrepresents a C1-C4 alkyl group, and Rrepresents a 2-hydroxyethyl group or a carboxymethyl group] as a production intermediate.