Abstract: wherein R1, R2, R3 and R4 are selected independently from each other from —NR5R6, —NR5R6R7+, hydrogen, aryl or heteroaryl with up to 7 ring members, C1-C20-alkyl, C1-C20-alkenyl and C1-C20-alkinyl, wherein the alkyl, alkenyl and alkinyl residues can be branched, unbranched or cyclized and optionally substituted with halogen, aryl or heteroaryl with up to 7 ring members, with the proviso that at least one of the residues R1, R2, R3 and R4 are represented by —NR5R6 or —NR5R6R7; and R5, R6 and R7 are selected independently from each other from hydrogen, aryl or heteroaryl with up to 7 ring members, C1-C20-alkyl, C1-C20-alkenyl, C1-C20-alkinyl, wherein the alkyl, alkenyl and alkinyl residues can be branched, unbranched or cyclized and optionally substituted with halogen, aryl or heteroaryl with up to 7 ring members, or R5 and R6, together with the nitrogen atom, form a heterocyclic group with up to 7 ring members; for the regulation of the activity of already activat

Abstract: wherein R1, R2, R3 and R4 are selected independently from each other from —NR5R6, —NR5R6R7+, hydrogen, aryl or heteroaryl with up to 7 ring members, C1-C20-alkyl, C1-C20-alkenyl and C1-C20-alkinyl, wherein the alkyl, alkenyl and alkinyl residues can be branched, unbranched or cyclized and optionally substituted with halogen, aryl or heteroaryl with up to 7 ring members, with the proviso that at least one of the residues R1, R2, R3 and R4 are represented by —NR5R6 or —NR5R6R7; and R5, R6 and R7 are selected independently from each other from hydrogen, aryl or heteroaryl with up to 7 ring members, C1-C20-alkyl, C1-C20-alkenyl, C1-C20-alkinyl, wherein the alkyl, alkenyl and alkinyl residues can be branched, unbranched or cyclized and optionally substituted with halogen, aryl or heteroaryl with up to 7 ring members, or R5 and R6, together with the nitrogen atom, form a heterocyclic group with up to 7 ring members; for the regulation of the activity of already activ