Using II, Cc1cc([N+](=O)[O-])c(Cl)cc1Oc1ccnc2[nH]ncc12 to produce Cc1cc([N+](=O)[O-])c(Cl)cc1Oc1ccnc2[nH]nc(I)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.