Using [F-], CC(C)n1cc(-c2cc(Cl)c(C#N)s2)c2ccc(NS(C)(=O)=O)cc21 to produce CC(C)n1cc(-c2cc(F)c(C#N)s2)c2ccc(NS(C)(=O)=O)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.