Substituted diaminophthalimides and analogues

A compound of formula I ##STR7## wherein A.sub.1 and A.sub.2 are each independently of the other hydrogen;

• lower alkyl;
• lower alkenyl;
• lower alkynyl;
• aryl;
• acyl which is selected from the group consisting of lower alkanoyl, halo-lower alkanoyl, aryl-lower alkanoyl, and arylcarbonyl;
• lower alkylsulfonyl;
• or arylsulfonyl;
• or wherein
• A.sub.1 and A.sub.2 together form unsubstituted or lower alkyl- or hydroxy-substituted lower alkylene;
• Ar.sub.1 and Ar.sub.2 are each independently of the other aryl;
• heteroaryl selected form the group consisting of imidazolyl, triazolyl, pyridyl, pyrimidinyl, and triazinyl, each of said heteroaryls being unsubstituted or substituted, the substituents being independently selected from the group consisting of lower alkyl, hydroxy, lower alkoxy, halogen, cyano, and trifluoromethyl;
• or unsubstituted or substituted C.sub.3 -C.sub.8 cycloalkyl;
• the group --C(.dbd.X)-- is --C(.dbd.O)--, --C(.dbd.S)--, CH.sub.2 -- or --C(.dbd.CR.sub.1 R.sub.2)-- wherein R.sub.1 and R.sub.2 are each independently of the other hydrogen or lower alkyl;
• and
• R is hydrogen, lower alkyl, aryl-lower alkyl, amino, hydroxy or lower alkoxy;
• aryl, at each occurence being phenyl or naphthyl, and each of said aryl being unsubstituted or substituted by one or more substituents selected from the group consisting of
• lower alkyl, lower alkenyl, lower alkynyl, lower alkylene (linked to two adjacent carbon atoms), C.sub.3 -C.sub.8 cycloalkyl, phenyl-lower alkyl, phenyl,
• lower alkyl substituted by one or more substituents indently selected from hydroxy, lower alkoxy, phenyl-lower alkoxy, lower alkanoyloxy, halogen, amino, lower alkylamino, di-(lower alkyl)amino, mercapto, lower alkylthio, lower alkylsulfinyl, lower alkylsulfonyl, carboxy, lower alkoxycarbonyl, carbamoyl, N-lower alkylcarbamoyl, N,N-di-lower alkylcarbamoyl and cyano;
• hydroxy, lower alkoxy, halo-lower alkoxy, phenyl-lower alkoxy, phenoxy, lower alkenyloxy, halo-lower alkenyloxy, lower alkynyloxy, lower alkylenedioxy (linked to two adjacent carbon atoms), lower alkanoyloxy, phenyl-lower alkanoyloxy, phenylcarbonyloxy, mercapto, lower alkylthio, phenyl-lower alkylthio, phenylthio, lower alkylsulfinyl, phenyl-lower alkylsulfinyl, phenylsulfinyl, lower alkylsulfonyl, phenyl-lower alkylsulfonyl, phenylsulfonyl, halogen, nitro, amino, lower alkylamino, C.sub.3 -C.sub.8 cycloalkylamino, phenyl-lower alkylamino, phenylamino, di-(lower alkylamino), N-lower alkyl-N-phenylamino, N-lower alkyl-N-phenyl-lower alkylamino, lower alkyleneamino, lower alkyleneamino interrupted by --O--, --S-- or --NR" (wherein R" is hydrogen, lower alkyl or lower alkanoyl);
• lower alkanoylamino, phenyl-lower alkanoylamino, phenylcarbonylamino, lower alkanoyl, phenyl-lower alkanoyl, phenylcarbonyl, carboxy, lower alkoxycarbonyl, carbamoyl, N-lower alkylcarbamoyl, N,N-di-lower alkylcarbamoyl, N-hydroxycarbamoyl, N-phenylcarbamoyl, cyano, sulfo, lower alkylsulfonyl, sulfamoyl, N-lower alkylsulfamoyl, N,N-di-lower alkylsulfamoyl and N-phenylsulfamoyl;
• (phenyl groups occurring in the substitutents each being unsubstituted or substituted by one or more substitutents selected from lower alkyl, lower alkoxy, hydroxy, halogen and trifluoromethyl);
• or a salt thereof when salt-forming groups are present.