Using CC1(C)C(=O)N(I)C(=O)N1I, CCCCOC(=O)c1ccccc1C(=O)NC(C)(C)CS(C)=O to produce CCCCOC(=O)c1cccc(I)c1C(=O)NC(C)(C)CS(C)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.