Using OB(O)c1ccc(Cl)cc1Cl, O=C1Nc2cccc(I)c2/C1=C/c1ccc[nH]1 to produce O=C1Nc2cccc(-c3ccc(Cl)cc3Cl)c2/C1=C/c1ccc[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.