Using CC(=O)N1C(=O)[C@@H](NC(=O)OC(C)(C)C)[C@H](C)N(C(C)=O)c2cc(C#N)ccc21 to produce CC(=O)N1c2cc(C#N)ccc2NC(=O)[C@@H](NC(=O)OC(C)(C)C)[C@@H]1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.