Using N#Cc1nc(Br)cnc1N, OB(O)c1cc(C(F)(F)F)cc(C(F)(F)F)c1 to produce N#Cc1nc(-c2cc(C(F)(F)F)cc(C(F)(F)F)c2)cnc1N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.