Using CCOC(=O)c1ccc(O)cc1, O=[N+]([O-])c1cnc(Cl)nc1Cl to produce CCOC(=O)c1ccc(Oc2nc(Cl)ncc2[N+](=O)[O-])cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.