Using CC(C)(C)OC(=O)N1[C@H](CNC(=O)C(F)(F)F)C[C@@H]2C[C@@H]21 to produce O=C(NC[C@@H]1C[C@@H]2C[C@@H]2N1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.