Using COC(=O)C1CCN(C(=O)OC(C)(C)C)CC1, Clc1ncnc2ccc(I)cc12 to produce COC(=O)C1(c2ncnc3ccc(I)cc23)CCN(C(=O)OC(C)(C)C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.