Using O=Cc1ccc(-c2ccc(Cl)cc2)cc1, CC(C)(O)C(=O)O to produce CC1(C)OC(c2ccc(-c3ccc(Cl)cc3)cc2)OC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.