Using Cc1c(-c2cc(F)cc(F)c2F)ccc(=O)n1CC(F)(F)F to produce CC1C(c2cc(F)cc(F)c2F)CCC(=O)N1CC(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.