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. 06, 2022
Filed:
Nov. 24, 2017
Applicant:
Japan Tobacco Inc., Tokyo, JP;
Inventors:
Assignee:
Japan Tobacco Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 471/04 (2006.01);
U.S. Cl.
CPC ...
C07D 471/04 (2013.01);
Abstract
The present invention relates to a novel method for producing a triazolopyridine compound or a salt thereof having a PHD inhibitory action and useful for treating or preventing diseases caused by decreased production of EPO, or the like. The present invention provides a method for producing 2-({[7-hydroxy-5-(2-phenylethyl)-[1,2,4]triazolo[1,5-a]pyridin-8-yl]carbonyl}amino)acetic acid comprising a step of reacting Compound [VI]: wherein R, Rand Rare as defined in the specification, or a salt thereof.