Using O=S(=O)(c1ccc(Cl)cc1)c1ccc(Cl)cc1, Cc1cc(O)ccc1N to produce Cc1cc(Oc2ccc(S(=O)(=O)c3ccc(Cl)cc3)cc2)ccc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.