Using CCCCC(=O)c1cccc(Br)n1, OB(O)c1ccc(C(F)(F)F)cc1 to produce CCCCC(=O)c1cccc(-c2ccc(C(F)(F)F)cc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.