Using Brc1cnc2[nH]ccc2c1, O=Cc1cc(OC(F)F)cc(OC(F)F)c1 to produce OC(c1cc(OC(F)F)cc(OC(F)F)c1)c1c[nH]c2ncc(Br)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.