Using NO, Cc1[nH]c(C(=O)NC2CCN(c3cc(C#N)cc(Cl)n3)CC2)c(Cl)c1Cl to produce Cc1[nH]c(C(=O)NC2CCN(c3cc(C(N)=NO)cc(Cl)n3)CC2)c(Cl)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.