Using Fc1cc(Br)c2cn[nH]c2c1, OB(O)c1ccc(OCc2ccccc2)c(F)c1 to produce Fc1cc(Br)c2cnn(-c3ccc(OCc4ccccc4)c(F)c3)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.