Using COc1cnc2c(Oc3ccc(Nc4nnc(-c5cc(CO)cs5)c5ccccc45)cc3)ccnc2c1, CCN(CC)S(F)(F)F to produce COc1cnc2c(Oc3ccc(Nc4nnc(-c5cc(CF)cs5)c5ccccc45)cc3)ccnc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.