Using Cc1cc(Cl)cc(Cl)c1N1CCCn2c1nc1c(Cl)ccc(C(N)=O)c12 to produce Cc1cc(Cl)cc(Cl)c1N1CCCn2c1nc1c(Cl)ccc(C#N)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.