Using CI, CCOC(=O)c1cc2c([nH]1)CCN(C(=O)OC(C)(C)C)C2 to produce CCOC(=O)c1cc2c(n1C)CCN(C(=O)OC(C)(C)C)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.