Using CSc1ccc(C2=C(Br)CCC2)cc1, OB(O)c1ccc(F)cc1 to produce CSc1ccc(C2=C(c3ccc(F)cc3)CCC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.