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. 01, 1987
Filed:
Aug. 07, 1984
Applicant:
Inventors:
Camille G Wermuth, Strasbourg, FR;
Jean-Pierre Chambon, Montarnaud, FR;
Assignee:
Sanofi, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; A61K / ;
U.S. Cl.
CPC ...
514247 ; 544224 ; 544237 ;
Abstract
The present invention relates to derivatives of pyridazine of formula: ##STR1## in which R.sub.1 is alkyl or a phenyl group and R.sub.2 is H or R.sub.1 and R.sub.2 form, with the carbon atoms to which they are attached, a benzene cycle, R.sub.3 is H or phenyl and R.sub.4 is ##STR2## in which R.sub.5 is H or CH.sub.3 and R.sub.6 is H, OH, OR or OCOR; it also relates to a process for preparing the products of formula (I) and to the drugs containing at least one of said products.