Using Nc1cc(Nc2cc(S(=O)(=O)[O-])c(N)c3c2C(=O)c2ccccc2C3=O)ccc1S(=O)(=O)[O-] to produce CNc1cc(S(=O)(=O)[O-])c(N)c2c1C(=O)c1ccccc1C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.