Using O=C1CC(=O)CC(c2ccccc2C(F)(F)F)C1, CC(=O)CCl to produce Cc1coc2c1C(=O)CC(c1ccccc1C(F)(F)F)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.