Using Br, OCCCCCCC(F)(F)C(F)(F)C(F)(F)C(F)(F)F to produce FC(F)(F)C(F)(F)C(F)(F)C(F)(F)CCCCCCBr, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.