Using COC(=O)c1sc(N)c(C#N)c1-c1ccc(C(C)(C)C)cc1, ICI to produce COC(=O)c1sc(I)c(C#N)c1-c1ccc(C(C)(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.