Using CC(=O)OC(C)(C)C, CCOC(=O)c1ccc(Oc2ccccc2)cc1 to produce CC(C)(C)OC(=O)CC(=O)c1ccc(Oc2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.