Using FC(F)(F)c1ccc(-c2cc(Cl)ncn2)cc1, Oc1ccccc1Br to produce FC(F)(F)c1ccc(-c2cc(Oc3ccccc3Br)ncn2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.