Using Nc1ccc(Nc2ccccc2[N+](=O)[O-])cc1, Brc1nccs1 to produce O=[N+]([O-])c1ccccc1Nc1ccc(Nc2nccs2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.