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:
May. 30, 2006
Filed:
Dec. 11, 2001
Applicants:
Thorsten Hartig, Bensheim, DE;
Steffen Enke, Neckarhausen, DE;
Inventors:
Thorsten Hartig, Bensheim, DE;
Steffen Enke, Neckarhausen, DE;
Assignee:
Merck Patent GmbH, Darmstadt, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 487/00 (2006.01); C07D 491/00 (2006.01); C07D 498/00 (2006.01); C07D 513/00 (2006.01); C07D 471/00 (2006.01); C07D 515/00 (2006.01); C07D 217/22 (2006.01); C07C 233/00 (2006.01); C07C 235/00 (2006.01); C07C 237/00 (2006.01); C07C 239/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for the preparation of α-aminosubstituted carboxylic acid amide compounds and/or their salts comprising reacting a carboxylic acid amide of a primary amine with a nitrosylating agent in the presence of a base followed by hydrolysis to give a hydroxy imino derivative followed by hydrogenation and if necessary converting a base or acid of the α-aminosubstituted carboxylic acid amide into one of its salts.