Using O=[N+]([O-])c1ccc(CBr)cc1, CO[C@@H]1CCN(C(=O)[O-])C1C(C)(C)C to produce COC1CCN(Cc2ccc([N+](=O)[O-])cc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.