Using O=[N+]([O-])c1ccc(S(=O)(=O)Nc2ccccc2OC(F)(F)F)cc1 to produce Nc1ccc(S(=O)(=O)Nc2ccccc2OC(F)(F)F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.