Using O=N[O-], Nc1cc(N2CCOCC2)nc(OCCOc2ccccn2)n1 to produce Nc1nc(OCCOc2ccccn2)nc(N2CCOCC2)c1N=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.