Using CC(C)(C)OC(=O)c1cc(Br)cc(Br)c1, CCOC(=O)C(F)F to produce CC(C)(C)OC(=O)c1cc(Br)cc(C(O)C(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.