Using CCOC(=O)C(C=O)Cc1ccn(CCN(C)C)c(=O)c1, N=C(N)N[N+](=O)[O-] to produce CN(C)CCn1ccc(Cc2cnc(N[N+](=O)[O-])[nH]c2=O)cc1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.