| abstract |
A compound having Formula I n nR 1 -Z-R 2 Formula I n nwherein R 1 is an optionally substituted phenyl ring; R 2 is or comprises an optionally substituted-aromatic ring; and Z is -X-Y-L- or -Y-X-L- wherein either X is selected from —S(═O)(═O)— and —C(═O)—, and Y is —NR 3 —; or X is selected from —S(═O)(═O)— and —S—, and Y is —C(R 4 )(R 5 )—; L is an optional linker; and R 3 , R 4 and R 5 are each independently selected from H and hydrocarbyl; and wherein when R 2 comprises the following structural moiety n n nwherein Q is an atom selected from the group consisting of S, O, N and C; the compound is selected from compounds of the formulae R 1 C(═O)—NR 3 -L-R 2 ; R 1 —S(═O)(═O)—C(R 4 )(R 5 )-L-R 2 ; R 1 —S—C(R 4 )(R 5 )-L-R 2 ; R 1 —NR 3 —S(═O)(═O)-L-R 2 ; R 1 —NR 3 —C(═O)-L-R 2 ; R 1 —C(R 4 )(R 5 )—S(═O)(═O)-L-R 2 ; and R 1 —C(R 4 )(R 5 )—S-L-R 2 . |