Using [N-]=[N+]=[N-], CC(C)Nc1nc(Nc2ccc(S(C)=O)cc2)ncc1Br to produce CC(C)Nc1nc(Nc2ccc(S(C)(=N)=O)cc2)ncc1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.