Using CC(CO)NC(=O)OC(C)(C)C, CCOC(=O)c1[nH]nc(I)c1C(=O)OCC to produce CCOC(=O)c1c(I)nn(CC(C)NC(=O)OC(C)(C)C)c1C(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.