Using C#CCN1CCN(C)CC1, COc1cc(Nc2c(C#N)cnc3sc(I)cc23)c(Cl)cc1Cl to produce COc1cc(Nc2c(C#N)cnc3sc(C#CCN4CCN(C)CC4)cc23)c(Cl)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.