Using NCCO[N+](=O)[O-], CCCOC(=NC#N)c1cncc(NCC)c1 to produce CCNc1cncc(C(=NCCO[N+](=O)[O-])NC#N)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.