Using O=[N+]([O-])c1ccc2c(c1)c(-c1nc3ccccc3[nH]1)nn2C1CCCCO1 to produce Nc1ccc2c(c1)c(-c1nc3ccccc3[nH]1)nn2C1CCCCO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.