Using [N-]=[N+]=[N-], CS(=O)(=O)OCC(NC(=O)OCc1ccccc1)C(F)(F)F to produce [N-]=[N+]=NCC(NC(=O)OCc1ccccc1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.