Using O=[N+]([O-])c1cnc2ccc(Cl)nn12, Cc1nc(C)c(Cl)c(NCc2cccc(O)c2)n1 to produce Cc1nc(C)c(Cl)c(NCc2cccc(Oc3ccc4ncc([N+](=O)[O-])n4n3)c2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.