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. 02, 1985
Filed:
Apr. 07, 1981
Applicant:
Inventors:
Norton P Peet, Indianapolis, IN (US);
Shyam Sunder, Indianapolis, IN (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; A61K / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
514248 ; 544115 ; 544118 ; 544233 ; 544234 ; 544236 ;
Abstract
3,6,7,8-Substituted-s-triazolo-pyridazine compounds such as 7,8-dimethyl-6-morpholino-3-methyl-s-triazolo[4,3-b]pyridazine or 7,8-dimethyl-6-(1-pyrrolidinyl)-3-(isopropyl)-s-triazolo-[4,3-b]pyridazine are prepared by the reaction of a carboxylic acid with a substituted 3-hydrazino-6-halo-pyridazine followed by the reaction of the resulting 6-halotriazolopyridazine with a corresponding base. The compounds have pharmacological activity as bronchodilators.