Using NC(CC(=O)O)c1ccccc1, O=S(=O)(Cl)c1c(Cl)cc(Cl)cc1Cl to produce O=C(O)CC(NS(=O)(=O)c1c(Cl)cc(Cl)cc1Cl)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.