Using C[Sn](C)(C)c1ccc([C@@H](O)[C@@H](CF)NC(=O)C(F)F)cc1, CS(=O)(=O)NCc1nc2cc(Br)ccc2s1 to produce CS(=O)(=O)NCc1nc2cc(-c3ccc([C@@H](O)[C@@H](CF)NC(=O)C(F)F)cc3)ccc2s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.