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. 30, 1985
Filed:
Dec. 20, 1983
Thomas Raabe, Rodenbach, DE;
Helmut Bohn, Schoneck, DE;
Piero A Martorana, Bad Homburg, DE;
Rolf-Eberhard Nitz, Frankfurt am Main, DE;
Cassella Aktiengesellschaft, , DE;
Abstract
Basically-substituted pyridazines of the formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3, independently of one another, denote hydrogen, halogen, hydroxyl, nitro, trifluoromethyl, alkyl, alkoxyalkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, phenyl, alkoxy, hydroxyalkoxy, alkoxy-alkoxy, alkenyloxy, alkynyloxy, cycloalkoxy, phenalkoxy, alkanoyl, alkanoylamino and --NH--CO--R.sup.9, R.sup.9 representing morpholino, piperidino or 1-pyrrolididinyl, or an optionally substituted ureido radical, R.sup.4 denotes hydrogen or lower alkyl and W denotes hydrogen, chlorine or bromine; and the acid-addition salts thereof are useful alone or in pharmaceutical preparations for treating cardiac complaints, circulatory complaints and high blood pressure. Several methods for preparing the basically-substituted pyridazines are also provided.