Using Clc1nc2ccccc2o1, COC(=O)Cc1ccc(C(=O)OC(C)(C)C)cc1 to produce COC(=O)C(c1ccc(C(=O)OC(C)(C)C)cc1)c1nc2ccccc2o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.