Using O=C1OCc2ccccc2N1C1CCN(c2ccc([N+](=O)[O-])cc2Cl)CC1 to produce Nc1ccc(N2CCC(N3C(=O)OCc4ccccc43)CC2)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.