Using ClI, CC(C)(C)OC(=O)N[C@@H](Cc1cccc(F)c1OCc1ccccc1)C(=O)OCc1ccccc1 to produce CC(C)(C)OC(=O)N[C@@H](Cc1cc(I)cc(F)c1OCc1ccccc1)C(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.