Using CN1CCN(C(=O)c2cc3cc([N+](=O)[O-])ccc3[nH]2)CC1 to produce CN1CCN(C(=O)c2cc3cc(N)ccc3[nH]2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.