Using Cc1nc(N)c(C#N)nc1Br, OB(O)c1cc(C(F)(F)F)cc(C(F)(F)F)c1 to produce Cc1nc(N)c(C#N)nc1-c1cc(C(F)(F)F)cc(C(F)(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.