Using FC(F)(F)c1ccc(CCl)cn1, O=c1[nH]nc2cc(-c3ccc(Cl)cc3)c(Cl)nn12 to produce O=c1n(Cc2ccc(C(F)(F)F)nc2)nc2cc(-c3ccc(Cl)cc3)c(Cl)nn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.