Using [N-]=[N+]=[N-], CC(C)(C(=O)CBr)c1ccc(S(N)(=O)=O)c(Cl)c1 to produce CC(C)(C(=O)CN=[N+]=[N-])c1ccc(S(N)(=O)=O)c(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.