Using CCOC(=O)c1cc([N+](=O)[O-])c(Br)s1, [N-]=[N+]=[N-] to produce CCOC(=O)c1cc2c(no[n+]2[O-])s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.