Using O=C1CCS(=O)(=O)CC1, N[C@@H]1C[C@H]1c1ccc(NC(=O)c2cccc(C(F)(F)F)c2)cc1 to produce O=C(Nc1ccc([C@@H]2C[C@H]2NC2CCS(=O)(=O)CC2)cc1)c1cccc(C(F)(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.