Using [N-]=[N+]=[N-], CS(=O)(=O)OCCn1ncc2c1-c1ccsc1C2 to produce [N-]=[N+]=NCCn1ncc2c1-c1ccsc1C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.