Using CN(C)C(=O)N1CCN(c2ccc3[nH]c(-c4ccc(N)c([N+](=O)[O-])c4)nc3c2)CC1 to produce CN(C)C(=O)N1CCN(c2ccc3[nH]c(-c4ccc(N)c(N)c4)nc3c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.