Using [C-]#N, CC(C)(C)OC(=O)C=C1C[C@@H]2CC=C[C@]12C to produce CC(C)(C)OC(=O)C[C@@]1(C#N)C[C@@H]2CC=C[C@@]21C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.