Using CN1CCN(C(=O)c2ccc([N+](=O)[O-])c(C=CN3CCCC3)c2)CC1 to produce CN1CCN(C(=O)c2ccc3[nH]ccc3c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.