Using OC(c1ccccc1)(c1cccc(C(F)(F)F)c1F)c1cncn1C(c1ccccc1)(c1ccccc1)c1ccccc1 to produce Fc1c(C(c2ccccc2)c2cnc[nH]2)cccc1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.