Using NS(=O)(=O)c1ccc2c(C(=O)c3ccc(F)cc3)c(O)ccc2c1, O=S(=O)(OS(=O)(=O)C(F)(F)F)C(F)(F)F to produce NS(=O)(=O)c1ccc2c(C(=O)c3ccc(F)cc3)c(OS(=O)(=O)C(F)(F)F)ccc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.