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:
Aug. 06, 2019
Filed:
Jul. 26, 2016
Applicant:
Cambrex Charles City, Inc., Charles City, IA (US);
Inventors:
Pär Holmberg, Charles City, IA (US);
Michael Robert Tracey, Charles City, IA (US);
Zhiming Eric Dong, Charles City, IA (US);
Assignee:
Cambrex Charles City, Inc., Charles City, IA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D 489/04 (2006.01); A61K 31/485 (2006.01); C07D 489/02 (2006.01);
U.S. Cl.
CPC ...
C07D 489/04 (2013.01); C07D 489/02 (2013.01);
Abstract
There is provided a novel process for the preparation of a compound of formula (I), wherein Ris as described in the description, by demethylation of a corresponding O-methyl derivative.