Using OB(O)c1ccncc1, COc1cc(-c2nc(-c3ccc(F)cc3)sc2Br)cnc1N to produce COc1cc(-c2nc(-c3ccc(F)cc3)sc2-c2ccncc2)cnc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.