Using CCCCCCCCCCCCOc1ccc(OC(=O)c2ccc(OC(C)=O)cc2)cc1Cl to produce CCCCCCCCCCCCOc1ccc(OC(=O)c2ccc(O)cc2)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.