Using CCOC(=O)[C@@H]1C[C@H]1c1ccc(OCc2ccccc2)cc1 to produce O=C(O)[C@@H]1C[C@H]1c1ccc(OCc2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.