Using O=C(O)c1ccc(Cl)s1, NCc1ccn(-c2ccc(I)cc2)c1 to produce O=C(NCc1ccn(-c2ccc(I)cc2)c1)c1ccc(Cl)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.