Using COc1ccc(CCl)cc1, O=[N+]([O-])c1cccc2c(I)n[nH]c12 to produce COc1ccc(Cn2nc(I)c3cccc([N+](=O)[O-])c32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.