Using C=NO, CCN(CC)c1ccc(N=Nc2c(C)cc(Br)cc2Br)c(NC(C)=O)c1 to produce CCN(CC)c1ccc(N=Nc2c(C)cc(Br)cc2C#N)c(NC(C)=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.