Using On1nnc2cccnc21, CC(F)(F)C[C@H](NC(=O)OC(C)(C)C)C(=O)O to produce CC(F)(F)C[C@H](NC(=O)OC(C)(C)C)C(=O)NC1(C#N)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.