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:
Oct. 23, 2018
Filed:
Jul. 01, 2016
Applicant:
Boehringer Ingelheim International Gmbh, Ingelheim am Rhein, DE;
Inventors:
Weitong Dong, Shanghai, CN;
Da Deng, Shanghai, CN;
Yan Fu, Shanghai, CN;
Xiangle Jin, Shanghai, CN;
Lidong Xing, Shanghai, CN;
Jun Yan, Shanghai, CN;
Assignee:
Boehringer Ingelheim International GmbH, Ingelheim am Rhein, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 213/12 (2006.01); C07D 213/803 (2006.01); C07D 213/80 (2006.01);
U.S. Cl.
CPC ...
C07D 213/803 (2013.01); C07D 213/80 (2013.01);
Abstract
This invention relates to a novel synthetic method for the preparation of 6-substituted or 5,6-disubstituted derivatives of 2-amino-isonicotinic acid.