Using CCC(C(=O)O)c1ccc(O)cc1, ClCc1ccc(-c2ccccc2)cc1 to produce O=C(O)Cc1ccc(OCc2ccc(-c3ccccc3)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.