Using CCn1ccc2c(Nc3ccc(Cl)cc3)nc(S(C)(=O)=O)nc21, [C-]#N to produce CCn1ccc2c(Nc3ccc(Cl)cc3)nc(C#N)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.