Using CC[C@@H](N[C@@H]1CCC(F)(F)C1)C(=O)OC(C)(C)C to produce CC[C@@H](N[C@@H]1CCC(F)(F)C1)C(=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.