Using Cn1cc(Br)c(-c2cccc(N)c2)n1, FC(F)(F)c1cc(Cl)nc(-c2cccnc2)n1 to produce Cn1cc(Br)c(-c2cccc(Nc3cc(C(F)(F)F)nc(-c4cccnc4)n3)c2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.