Using Nc1ncc(-c2ccc(C(F)(F)F)cc2)cc1C(F)(F)F, O=CCCl to produce FC(F)(F)c1ccc(-c2cc(C(F)(F)F)c3nccn3c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.