Using OCC1COC(C(F)(F)F)(C(F)(F)F)O1, BrC(c1ccccc1)c1ccccc1 to produce FC(F)(F)C1(C(F)(F)F)OCC(COC(c2ccccc2)c2ccccc2)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.