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. 31, 2023
Filed:
May. 18, 2022
Applicant:
Ocuphire Pharma, Inc., Farmington Hills, MI (US);
Inventor:
Daniela Carmen Oniciu, Gainesville, FL (US);
Assignee:
Ocuphire Pharma, Inc., Farmington Hills, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 233/24 (2006.01);
U.S. Cl.
CPC ...
C07D 233/24 (2013.01);
Abstract
This invention provides methods for synthesizing phentolamine mesylate from phentolamine and methanesulfonic acid in the presence of acetone and water. The methods of the present invention provide highly pure phentolamine mesylate. The invention also provides highly pure phentolamine mesylate.