Using O=C(Cl)c1ccc(S(=O)(=O)Cl)cc1, NCc1ccc(F)cc1 to produce O=C(NCc1ccc(F)cc1)c1ccc(S(=O)(=O)Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.