Using CCOC(=O)C(=O)CC(=O)CC(=O)c1ccccc1, O=S(=O)(Cl)C(F)(F)F to produce CCOC(=O)c1oc(-c2ccccc2)cc(=O)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.