Using [N-]=[N+]=[N-], CS(=O)(=O)OCC1CCN(C(=N)NC(=O)OCc2ccccc2)C1 to produce [N-]=[N+]=NCC1CCN(C(=N)NC(=O)OCc2ccccc2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.