Using Brc1ccc(Br)nn1, Nc1ccc(O)c([N+](=O)[O-])c1 to produce Nc1ccc(Oc2ccc(Br)nn2)c([N+](=O)[O-])c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.