Using C=Cc1ccc([C@@](O)(C(=O)OC2CCN(C(=O)OC(C)(C)C)CC2)[C@@H]2CCC(F)(F)C2)cc1 to produce CCc1ccc([C@@](O)(C(=O)OC2CCN(C(=O)OC(C)(C)C)CC2)[C@@H]2CCC(F)(F)C2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.