Using Cc1c(C(=O)O)cc(Br)cc1[N+](=O)[O-], O=C([O-])[O-] to produce COC(=O)c1cc(Br)cc([N+](=O)[O-])c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.