Using CCOC(=O)CCCN, O=[N+]([O-])c1cnc2cccnc2c1Cl to produce CCOC(=O)CCCNc1nc2cccnc2cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.