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:
Apr. 06, 1993
Filed:
Jun. 11, 1991
Applicant:
Inventors:
Karl G Grozinger, Ridgefield, CT (US);
Karl D Hargrave, Brookfield, CT (US);
Julian Adams, Ridgefield, CT (US);
Assignee:
Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546250 ; 546311 ;
Abstract
A process for the preparation of a 3-amino-2-chloro-4-alkylpyridine of the formula: ##STR1## wherein R is alkyl of from one to three carbon atoms, an intermediate in the preparation of certain 5,11-dihydro-6H-dipyrido[3,2-b:2',3'-e][1,4]diazepine compounds useful in the prevention and treatment of HIV infection.