Using Cc1c(Br)cnc(N)c1-c1cccc(C(F)(F)F)c1, Cl to produce Cc1c(Br)cnc(Cl)c1-c1cccc(C(F)(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.