Using CS(=O)(=O)Nc1ccc(C(=O)C2CCN(CCOc3ccc([N+](=O)[O-])cc3)CC2)cc1 to produce CS(=O)(=O)Nc1ccc(C(=O)C2CCN(CCOc3ccc(N)cc3)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.