Using [N-]=[N+]=[N-], CS(=O)(=O)OCc1sc2ccccc2c1-c1ccccc1 to produce [N-]=[N+]=NCc1sc2ccccc2c1-c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.