Using COCOc1c(C)ccc2c1C(O)N(C(C)(C)c1ccccc1)C2=O, II to produce COCOc1c(C)cc(I)c2c1C(O)N(C(C)(C)c1ccccc1)C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.