Using CCNC(=O)Nc1cc(C2=NC(O)(C(F)(F)F)CS2)c(Br)cn1 to produce CCNC(=O)Nc1cc(-c2nc(C(F)(F)F)cs2)c(Br)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.