Using CCOC(=O)c1c(C(F)F)nn(C(C)(C)C)c1C(F)(F)C(F)(F)F to produce CC(C)(C)n1nc(C(F)F)c(C(=O)O)c1C(F)(F)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.