Using C[C@@](CCO)(NC(=S)NC(=O)c1ccccc1)c1cc(Br)c(F)cc1F to produce C[C@@]1(c2cc(Br)c(F)cc2F)CCSC(N)=N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.