Using COc1ccc(-c2cc(NC(=O)[C@@H]3C[C@H]3C)sn2)cc1F, BrBr to produce COc1ccc(-c2nsc(NC(=O)[C@@H]3C[C@H]3C)c2Br)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.