Using O=C(O)c1nn(-c2ccc(OC(F)(F)F)cc2)c2cccc(OC(F)F)c2c1=O to produce O=C([O-])c1nn(-c2ccc(OC(F)(F)F)cc2)c2cccc(OC(F)F)c2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.