Using CC(=O)N1CCC2(C1)CN(C(=O)C(F)(F)F)c1ccc(S)cc12, C1CCCC1 to produce CC(=O)N1CCC2(C1)CN(C(=O)C(F)(F)F)c1ccc(SC3CCCC3)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.