Using CC(=O)OC(C)=O, CC(C)(C)OC(=O)N[C@@H]1CC[C@@H](c2cccc(F)c2F)CNC1C#N to produce CC(=O)N1C[C@H](c2cccc(F)c2F)CC[C@@H](NC(=O)OC(C)(C)C)C1C#N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.