Using FC(F)Cl, O=[N+]([O-])c1cnc2ccc(S)cc2c1-c1ccccc1 to produce O=[N+]([O-])c1cnc2ccc(SC(F)F)cc2c1-c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.