Using CC(=O)Nc1ccc(S(=O)Cc2ccccc2)cc1[N+](=O)[O-] to produce Nc1ccc(S(=O)Cc2ccccc2)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.