Using CC(C)(C)OC(=O)Nc1ccc(COC(=O)N2CCN(CC3(C)Cn4cc([N+](=O)[O-])nc4O3)CC2)cc1 to produce CC1(CN2CCN(C(=O)OCc3ccc(N)cc3)CC2)Cn2cc([N+](=O)[O-])nc2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.