Using O=[N+]([O-])c1ccc(Oc2ncnc3c2ncn3C2CCCCO2)cc1 to produce Nc1ccc(Oc2ncnc3c2ncn3C2CCCCO2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.