Using CCOC(=O)c1ncc2[nH]c3cccc(Oc4ccc([N+](=O)[O-])cc4)c3c2c1COC to produce CCOC(=O)c1ncc2[nH]c3cccc(Oc4ccc(N)cc4)c3c2c1COC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.