Compound of general formula (2) ** Formula ** where Y1, Y1 ', Y2, Y2', Y3, Y3 ', Y4 and Y4' are selected in each case, independently of each other, from the group formed by -H , -F, -Cl, -Br, -I, -CN, -NO2, -CHO, -R0, -C (>； = O) R0, -C (>； = O) H, -C (>； = O) -OH, - C (>； = O) OR0, -C (>； = O) NH2, -C (>； = O) NHR0, -C (>； = O) N (R0) 2, -OH, -OR0, - OC (>； = O) H, -OC (>； = O) R0, -OC (>； = O) OR0, - OC (>； = O) NHR0, -OC (>； = O) N (R0) 2, -SH , -SR0, -SO3H, -S (>； = O) 1-2-R0, -S (>； = O) 1-2NH2, -NH2, -NHR0, -N (R0) 2, - N + (R0) 3 , -N + (R0) 2O-, -NHC (>； = O) R0, -NHC (>； = O) OR0, -NHC (>； = O) NH2, -NHC (>； = O) NHR0, -NHC (>； = O) N (R0) 2； preferably they are selected in each case, independently of each other, from the group consisting of -H, -F, -Cl, -CN and -aliphatic (C1-8)； or Y1 and Y1 ', or Y2 and Y2', or Y3 and Y3 ', or Y4 and Y4' together represent>； = O； Q represents -R0, -C (>； = O) -R0, -C (>； = O) OR0, -C (>； = O) NHR0, -C (>； = O) N (R0) 2 or -C (>； = NH) -R0； R0 represents, in each case, independently, -aliphatic (C1-8), -cycloaliphatic (C3-12), -aryl, - heteroaryl, -aliphatic (C1-8) -cycloaliphatic (C3-12), -aliphatic (C1 -8) aryl, -aliphatic (C1-8) heteroaryl, - cycloaliphatic (C3-8) aliphatic (C1-8), -cycloaliphatic (C3-8) aryl or -cycloaliphatic (C3-8) heteroaryl； R1 and R2, independently of each other, represent -H or -aliphatic (C1-6)； or R1 and R2 together form a ring and represent -CH2CH2OCH2CH2-, -CH2CH2NR4CH2CH2- or - (CH2) 3-6-； with the proviso that R1 and R2 do not both represent H at the same time； (Hetero) aryl means heteroaryl or aryl R4 represents, in each case, independently, -H, -R0 or -C (>； = O) R0； n is an integer from 0 to 12； X represents NRA-； RA represents -H or -R0, RB represents -H or -R0, where "aliphatic" is in each case a linear or branched, saturated or mono- or polyunsaturated aliphatic hydrocarbon group, unsubstituted or substituted one or more times.Compu
