Using COc1ccc(Cn2ccc3cc(F)c(Br)cc3c2=O)cc1, OB(O)c1ccccc1 to produce COc1ccc(Cn2ccc3cc(F)c(-c4ccccc4)cc3c2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.