Using COC(=O)C(C)n1ccc2c(C(F)(F)F)c(C#N)ccc21 to produce CC(C(=O)O)n1ccc2c(C(F)(F)F)c(C#N)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.