Using CC(C)(Oc1ccc(Cl)cc1)C(=O)OCCCl, O=C([O-])c1ccccc1O to produce CC(C)(Oc1ccc(Cl)cc1)C(=O)OCCOCc1ccccc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.