Using CC(C(=O)OC(C)(C)C)N1C(=O)c2c(cccc2C(F)(F)F)C1C#N to produce CC(C(=O)O)N1C(=O)c2c(cccc2C(F)(F)F)C1CN, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.