Using BrCc1cccc(Oc2ccccc2)c1, OCC(c1ccccc1)C(F)(F)F to produce FC(F)(F)C(COCc1cccc(Oc2ccccc2)c1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.