Using O=c1cc(N2CCOCC2)oc2c(-c3ccc([N+](=O)[O-])c4c3oc3ccccc34)cccc12 to produce Nc1ccc(-c2cccc3c(=O)cc(N4CCOCC4)oc23)c2oc3ccccc3c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.