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:
Jul. 25, 2023
Filed:
Oct. 09, 2020
Applicant:
Medibeacon Inc., St. Louis, MO (US);
Inventor:
Thomas E. Rogers, Ballwin, MO (US);
Assignee:
MediBeacon Inc., St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 487/14 (2006.01); C07D 241/28 (2006.01);
U.S. Cl.
CPC ...
C07D 241/28 (2013.01); C07D 487/14 (2013.01);
Abstract
A process for preparing pyrimido[4,5-g]pteridine-2,4,7,9-tetraol, or a salt thereof, is provided. A process for the preparation of 3,6-diaminopyrazine-2,5-dicarboxylic acid, or a salt thereof, from pyrimido[4,5-g]pteridine-2,4,7,9-tetraol, or a salt thereof, is further provided. A process for preparing a substituted pteridine compound, or a salt thereof, is further provided. A process for the preparation of a N-substituted 3,6-diaminopyrazine-2,5-dicarboxylic acid from a substituted pteridine compound, or a salt thereof, is further provided.