Using O=[N+]([O-])c1cnc(Cl)c(Cl)c1, Oc1ccnc2[nH]ccc12 to produce O=[N+]([O-])c1cnc(Oc2ccnc3[nH]ccc23)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.