Using O=C1Nc2ccccc2C(c2ccccc2)N1C1CCN(Cc2cccc([N+](=O)[O-])c2)CC1 to produce Nc1cccc(CN2CCC(N3C(=O)Nc4ccccc4C3c3ccccc3)CC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.