Using Cc1nc(-c2cnn(C)c2Br)c2c(=O)[nH]cnn12, OB(O)c1ccc(C(F)(F)F)cc1 to produce Cc1nc(-c2cnn(C)c2-c2ccc(C(F)(F)F)cc2)c2c(=O)[nH]cnn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.