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