Using CO[C@@]12CCN(C(=O)O[C@@H](C)C(F)(F)F)[C@@H]1CN(C(=O)OC(C)(C)C)C2 to produce CO[C@@]12CCN(C(=O)O[C@@H](C)C(F)(F)F)[C@@H]1CNC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.