Using CNc1cnc2cc(Br)ccc2n1, Fc1ccc(CBr)cc1C(F)(F)F to produce CN(Cc1ccc(F)c(C(F)(F)F)c1)c1cnc2cc(Br)ccc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.