Using CC(C)(C)OC(=O)N1CCN(Cc2nc3c([N+](=O)[O-])cccc3o2)CC1 to produce CC(C)(C)OC(=O)N1CCN(Cc2nc3c(N)cccc3o2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.