Using O=C(OC1CCN(Cc2cccc([N+](=O)[O-])c2)CC1)c1ccccc1 to produce Nc1cccc(CN2CCC(OC(=O)c3ccccc3)CC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.