Using CC1(N2C(=O)c3cccc(NC(=O)CN=[N+]=[N-])c3C2=O)CCC(=O)NC1=O to produce CC1(N2C(=O)c3cccc(NC(=O)CN)c3C2=O)CCC(=O)NC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.