Using O=[N+]([O-])c1nc(Br)cc(Br)c1O, O=[N+]([O-])c1nc(Br)ccc1O to produce COc1ccc(Br)nc1[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.