Using O=[N+]([O-])c1cccc2c1ccn2S(=O)(=O)c1cccc2ccccc12 to produce Nc1cccc2c1ccn2S(=O)(=O)c1cccc2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.