. "zole or pyrazole, optionally substituted by at least one substituent, which are identical or different, selected from the halogen atoms including fluorine and chlorine and the alkyl, containing 1 to 4 carbon atoms, aryl, containing 6 to 10 carbon atoms, alkoxy, containing 1 to 4 carbon atoms, aryloxy, containing 6 to 10 carbon atoms, amino, alkylamino, containing 1 to 4 carbon atoms, dialkylamino," . . . . .