Using O=C(c1ccccc1)N1CCN(c2ccc([N+](=O)[O-])c(Nc3ccccc3)c2)CC1 to produce Nc1ccc(N2CCN(C(=O)c3ccccc3)CC2)cc1Nc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.