Using O=C([O-])c1cc2cc([N+](=O)[O-])cc(Br)c2o1 to produce O=C(O)c1cc2cc([N+](=O)[O-])cc(Br)c2o1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.