Using OCc1cccc(Oc2ccccc2)c1, COC(=O)C1CC1c1ccc(O)cc1 to produce COC(=O)C1CC1c1ccc(OCc2cccc(Oc3ccccc3)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.