Using CCCCOC(=O)c1nc(Cl)c2ccc(Oc3ccc([N+](=O)[O-])cc3)cc2c1O to produce CCCCOC(=O)c1ncc2ccc(Oc3ccc(N)cc3)cc2c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.