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. 09, 2025
Filed:
Dec. 16, 2020
Applicant:
Pfizer Ireland Pharmaceuticals, New York, NY (US);
Inventors:
Simon Peter Curran, Frankfield, IE;
Padraig Mary O'neill, Crosshaven, IE;
Assignee:
Pfizer Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 263/57 (2006.01); C07D 493/18 (2006.01);
U.S. Cl.
CPC ...
C07D 263/57 (2013.01); C07D 493/18 (2013.01);
Abstract
The present invention is directed to an efficient process for preparing benzoxazole derivatives comprising the step of reacting a 4-Amino-3-hydroxybenzoic acid compound of Formula III with a 3,5-Dichlorophenyl ortho ester compound of Formula II to provide the compound of Formula I wherein R, R, Rand Rare as described herein.