Using CC(C)(C)OC(=O)N1CCC2(CC1)CNC(=O)O2, COc1ccc([N+](=O)[O-])cc1CBr to produce COc1ccc([N+](=O)[O-])cc1CN1CC2(CCN(C(=O)OC(C)(C)C)CC2)OC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.