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:
Mar. 11, 2014
Filed:
Jun. 14, 2011
Applicants:
Helmut Heinrich Buschmann, Aachen, DE;
Joerg Holenz, Enhoerna, SE;
Inventors:
Helmut Heinrich Buschmann, Aachen, DE;
Joerg Holenz, Enhoerna, SE;
Assignee:
Grünenthal GmbH, Aachen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 209/00 (2006.01); C07C 211/00 (2006.01); A01N 33/02 (2006.01); A61K 31/135 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for the preparation of substituted 3-(1-amino-2-methylpentane-3-yl)phenyl compounds which has advantages over conventional processes with respect to higher conversions and yields, flexibility, a shorter overall route, environmentally acceptable conditions, influence of stereoselectivity such as diastereoselectivity in a targeted manner and at least partial suppression of the formation of undesired side-products and/or undesired stereoisomers, in particular undesired diastereomers.