Using O=[N+]([O-])c1ccc(N2CCC(N3CCC(c4ccccc4)CC3)CC2)cc1 to produce Nc1ccc(N2CCC(N3CCC(c4ccccc4)CC3)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.