Using O=C([O-])O, O=S(=O)(Nc1ccc2c[n+]([O-])ccc2c1)c1ccc(Cl)cc1 to produce O=S(=O)(Nc1ccc2c(O)nccc2c1)c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.