Using COC(=O)C(C1CCN(Cc2ccccc2)CC1)C(O)c1ccccc1[N+](=O)[O-] to produce O=C1Nc2ccccc2C(O)C1C1CCN(Cc2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.