Using CCCCCCC1C(=O)C2N(C1=O)C2(C)c1ccccc1[N+](=O)[O-] to produce CCCCCCC1C(=O)C2N(C1=O)C2(C)c1ccccc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.