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:
Jul. 11, 2000
Filed:
Jul. 17, 1998
Applicant:
Inventors:
Marcus Knell, Ingelheim, DE;
Monika Brink, Ingelheim, DE;
Jan Hendrik Wevers, Mainz-Kastel, DE;
Willi Heinz, Mainz, DE;
Assignee:
American Cyanamid Company, Madison, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546326 ; 546323 ;
Abstract
The invention relates to a process for the preparation of heteroarylcarboxylic amides and esters of formula I ##STR1## in which one or two of the groups A.sup.1, A.sup.2, A.sup.3, A.sup.4, and A.sup.5 represent a nitrogen atom and the other groups each independently represent CR.sup.3,