| abstract |
The invention relates to new 2H-pyridazinone derivatives of the general formula (I) ##STR1## in which R 1 represent alkyl, alkoxyalkyl, alkylthioalkyl, aminoalkyl, alkylaminoalkyl, dialkylaminoalkyl, hydroxyalkyl, halogenoalkyl, cyanoalkyl, alkenyl, halogenalkenyl or alkoxycarbonylalkyl, or represents in each case optionally substituted cycloalkyl, cycloalkylalkyl, phenyl or phenylalkyl, n R 2 represents alkyl, or represents in each case optionally substituted phenyl, phenoxy or phenylalkyl, n R 3 represents hydrogen, or represents in each case optionally substituted alkyl, cycloalkyl or alkylcarbonyl, and n R 4 represents hydrogen, hydroxyl, amino, aminocarbonyl (carbamoyl), or represents alkoxy, alkylamino or dialkylamino, or represents in each case optionally substituted alkyl, cycloalkyl, alkylaminocarbonyl, dialkylaminocarbonyl, alkylcarbonyloxy, alkylcarbonylamino, alkylcarbonylalkylamino, bis-(alkylcarbonyl)-amino, alkoxycarbonyl, alkoxycarbonylcarbonyl, formyl or alkylcarbonyl, n have been found. |