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:
Dec. 29, 1987
Filed:
Apr. 27, 1987
Applicant:
Inventor:
Carl J Goddard, Croton, CT (US);
Assignee:
Pfizer Inc., New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
546298 ; 546345 ;
Abstract
A novel process for chlorinating 2-methoxynicotinic acid at the 5-position of the molecule is disclosed. The process involves the use of an alkali metal hypochlorite as the chlorinating agent in a homogeneous aqueous solvent system. The compound so produced, 5-chloro-2-methoxynicotinic acid, is known to be useful as an intermediate leading to various oral hypoglycemic agents of the benzenesulfonylurea class.