Using C[N+](=O)[O-], CC1=C[C@@H]2C(=CC(=O)OC(C)(C)C)C[C@@H]2C1 to produce CC1=C[C@H]2[C@@H](C1)C[C@]2(CC(=O)OC(C)(C)C)C[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.