Using FC(F)(F)c1cnc(C2(CI)CC2)c(Cl)c1, CONC(=O)c1c(F)cccc1F to produce CON(CC1(c2ncc(C(F)(F)F)cc2Cl)CC1)C(=O)c1c(F)cccc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.