Using C[C@]12CC[C@H](O)CC1=CC[C@@H]1[C@@H]2CC[C@]2(C)C(=NO)CC[C@@H]12, O=C(O)c1ccc([N+](=O)[O-])cc1 to produce C[C@]12CC[C@H](OC(=O)c3ccc([N+](=O)[O-])cc3)CC1=CC[C@@H]1[C@@H]2CC[C@]2(C)C(=NO)CC[C@@H]12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.