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