Using Fc1nc(F)c(F)c(F)c1F, O=C1NS(=O)(=O)c2ccccc21 to produce O=C1c2ccccc2S(=O)(=O)N1c1c(F)c(F)nc(F)c1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.