Using COC(=O)CN1C[C@H](c2cccc(Cl)c2F)[C@@](C#N)(c2ccc(Cl)cc2F)[C@@H]1CC(C)(C)C to produce CC(C)(C)C[C@@H]1N(CC(=O)O)C[C@H](c2cccc(Cl)c2F)[C@@]1(C#N)c1ccc(Cl)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.