Using SCc1ccncc1, O=C(Nc1ccc(S(=O)(=O)C(F)(F)F)cc1)c1cccnc1Cl to produce O=C(Nc1ccc(S(=O)(=O)C(F)(F)F)cc1)c1cccnc1SCc1ccncc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.