Using CC(C)(C)OC(=O)N1[C@@H]2CC[C@@H](C2)[C@H]1CNC(=O)C(F)(F)F to produce O=C(NC[C@H]1N[C@@H]2CC[C@H]1C2)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.