Using C=CC(C)(C)CC(=O)OCC, OCc1cccc(Oc2ccccc2)c1 to produce C=CC(C)(C)CC(=O)OCc1cccc(Oc2ccccc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.