Using FC(F)(F)c1cc(Cl)c(-n2ncc(CS)n2)c(Cl)c1, C=CCn1c(Br)nc(C#N)c1C#N to produce C=CCn1c(SCc2cnn(-c3c(Cl)cc(C(F)(F)F)cc3Cl)n2)nc(C#N)c1C#N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.