Using CC(C)(C)OC(=O)CC(O)(CCc1cccc(OCc2ccccc2)c1)C1CCCC1 to produce O=C(O)CC(O)(CCc1cccc(OCc2ccccc2)c1)C1CCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.