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. 23, 1991
Filed:
Nov. 30, 1989
Applicant:
Inventors:
Heinz Blaschke, Linz, AT;
Heimo Stroissnig, Vienna, AT;
Harald Fellier, Puchenau, AT;
Rita Enzenhofer, Ottensheim, AT;
Assignee:
CL Pharma Aktiengesellschaft, Linz, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
514252 ; 5142365 ; 544120 ; 544238 ;
Abstract
The invention relates to new piperazinylalkyl-3(2H)-pyridazinones of the formula ##STR1## in which the radicals R.sub.1 represents hydrogen, phenyl, benzyl, or (C.sub.1 -C.sub.6)-alkyl which is unsubstituted or substituted one or more times by hydroxyl, piperidine, morpholine or by a group NR.sub.4 R.sub.5 in which R.sub.4 and R.sub.5 can be identical or different and which represent hydrogen, methyl or ethyl,