Using O=C1Nc2ccc(S(=O)(=O)Cl)cc2C1(Cl)Cl, NCc1ccccc1 to produce O=C1Nc2ccc(S(=O)(=O)NCc3ccccc3)cc2C1(Cl)Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.