Using CCCC(=O)CN(C)c1ccc(C(O)(C(F)(F)F)C(F)(F)F)cc1 to produce CCCC(O)CN(C)c1ccc(C(O)(C(F)(F)F)C(F)(F)F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.