Using Cc1cnc(-c2ccc(C(F)(F)F)cc2)n1C, CC(=O)[O-] to produce Cc1c(CO)nc(-c2ccc(C(F)(F)F)cc2)n1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.