Using OB(O)c1cncc(C(F)(F)F)c1, Fc1ccc(CNc2cc(Cl)nc(Cl)n2)c(F)c1 to produce Fc1ccc(CNc2cc(Cl)nc(-c3cncc(C(F)(F)F)c3)n2)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.