Using CCOC(=O)C(Br)c1ccc([N+](=O)[O-])cc1, BrBr to produce COC(=O)C(Br)(Br)c1ccc([N+](=O)[O-])cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.