Using C[N+](=O)[O-], CC(C)(C)OC(=O)C=C1C[C@@H]2CC(C3CCCC3)=C[C@H]12 to produce CC(C)(C)OC(=O)C[C@]1(C[N+](=O)[O-])C[C@@H]2CC(C3CCCC3)=C[C@@H]21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.