Using CC(=O)C1=C(C)NC(CCCCN=[N+]=[N-])=C(C(=O)OCCC#N)C1c1ccc([N+](=O)[O-])cc1 to produce CC(=O)C1=C(C)NC(CCCCN=[N+]=[N-])=C(C(=O)O)C1c1ccc([N+](=O)[O-])cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.