Using [I-], O=C(CCl)NC1c2ccccc2CC1NC(=O)c1cc2cc(Cl)ccc2[nH]1 to produce O=C(CI)NC1c2ccccc2CC1NC(=O)c1cc2cc(Cl)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.