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. 31, 1984
Filed:
Nov. 10, 1982
Applicant:
Inventors:
George Y Lesher, Schodack, NY (US);
Chester J Opalka, Jr, Schodack, NY (US);
Baldev Singh, East Greenbush, NY (US);
Assignee:
Sterling Drug Inc., New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
424263 ; 424266 ; 546257 ; 546258 ;
Abstract
2-(R.sub.1 O)-3-Q-5-PY-6-R-pyridine (I) or pharmaceutically acceptable acid-addition salts thereof are useful cardiotonics, where R.sub.1 is methyl or ethyl, R is hydrogen or lower-alkyl, PY is 4(or 3)-pyridinyl or 4(or 3)-pyridinyl having one or two lower-alkyl substituents, and Q is hydrogen, chloro or COOR' where R' is lower-alkyl, or Q is cyano only when R is hydrogen. The preparation of I and their cardiotonic use are shown.