Using O=S(=O)(c1ccc(Cl)cc1)C(F)(F)F, Nc1ccc(N)cc1 to produce Nc1ccc(Nc2ccc(S(=O)(=O)C(F)(F)F)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.