Using Cl, N#Cc1c(N)nc(Sc2ccccc2)c(C#N)c1-c1ccccc1 to produce N#Cc1c(Cl)nc(Sc2ccccc2)c(C#N)c1-c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.