Using CC(C)(C)OC(=O)N1CC(O)C1, Clc1ncnc2[nH]cc(I)c12 to produce CC(C)(C)OC(=O)N1CC(n2cc(I)c3c(Cl)ncnc32)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.