Patent ID: 8679776

Claim:
A compound represented by Structure VI: wherein X is O, S, NH, or CR 23 R 24 , R 30 and R 31 are each independently H, alkyl, alkenyl, alkaryl, aryl, a bis-arsenical spirolactam group, a NHS ester group, a maleimide group, or an iodoacetamide group, each of alkyl, alkenyl, alkynyl, and aryl comprising up to 36 carbon atoms, R 11 -R 24 are each independently H, F, Cl, Br, I, OH, alkyl, alkenyl, alkynyl, or aryl, each of alkyl, alkenyl, alkynyl, and aryl comprising up to 36 carbon atoms, and G is selected from the group consisting of