Using CCOC(=O)Cc1ccccc1C(F)(F)F, [O-][Br+2]([O-])[O-] to produce CCOC(=O)C(Br)c1ccccc1C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.