Using CS(N)(=O)=O, O=C(O)c1ccc(Nc2cnc(OC(C(F)(F)F)C(F)(F)F)c(Cl)c2)cc1 to produce CS(=O)(=O)NC(=O)c1ccc(Nc2cnc(OC(C(F)(F)F)C(F)(F)F)c(Cl)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.