Using CC1(C)OC(=O)CC(=O)O1, O=C(Cl)Cc1ccc(OCc2c(F)cccc2F)cc1 to produce CCOC(=O)CC(=O)CCc1ccc(OCc2c(F)cccc2F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.