Using CC(C)(C)OC(=O)N1CCN(c2ccc(C(F)(F)F)cc2C#N)CC1 to produce CC(C)(C)OC(=O)N1CCN(c2ccc(C(F)(F)F)cc2CN)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.