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. 11, 2013
Filed:
Mar. 31, 2009
Applicants:
Robertus Mattheus DE Pater, Delft, NL;
Adrianus Antonius Cornelius Van Wijk, Delft, NL;
Piotr Wnukowski, Delft, NL;
Inventors:
Robertus Mattheus De Pater, Delft, NL;
Adrianus Antonius Cornelius Van Wijk, Delft, NL;
Piotr Wnukowski, Delft, NL;
Assignee:
DSM Sinochem Pharmaceuticals Netherlands B.V., Delft, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 487/08 (2006.01); C07D 307/00 (2006.01); C07C 67/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a salt of a carboxylic acid with a diamine such as 2,2'-(ethylenedioxy)diethyl amine, 3,3′-(ethylenedioxy)dipropyl amine and 2,2′-oxybis(ethylamine) and a method of preparing such salts. Preferably the carboxylic acid is a fermentation product such as clavulanic acid, mycophenolic acid or pravastatin.