Using CC1=CC(=O)OC(C)(C)O1, O=C1c2ccccc2C(=O)N1CCO to produce CC(=O)CC(=O)OCCN1C(=O)c2ccccc2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.