Using COC(=O)CCCCCCCn1c(=O)oc2ccc([N+](=O)[O-])cc21 to produce COC(=O)CCCCCCCn1c(=O)oc2ccc(N)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.