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:
May. 20, 1986
Filed:
Oct. 05, 1981
Applicant:
Inventors:
George Y Lesher, Schodack, NY (US);
William B Dickinson, Albany, NY (US);
Assignee:
Sterling Drug Inc., New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
514247 ; 544238 ;
Abstract
3-(NB)-4-Q-6-PY-pyridazines (I) or salts thereof, which are useful as cardiotonics, are prepared by reacting a 3-halo-4-Q-6-PY-pyridazine with an amine, H-NB, to produce I, where PY is 4- or 3-pyridinyl or 4- or 3-pyridinyl having one or two lower-alkyl substituents and Q is cyano when NB is NHCH.sub.3 or N(CH.sub.3).sub.2, or Q is carbamyl when NB is NHCH.sub.3, or Q is hydrogen when NB is N(CH.sub.3).sub.2. Cardiotonic use of said 3-(NB)-4-Q-6-PY-pyridazines or salts is shown.