Using OB(O)c1ccc(F)c(C(F)(F)F)c1, O=Cc1cccc(Br)n1 to produce O=Cc1cccc(-c2ccc(F)c(C(F)(F)F)c2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.