Using NCc1ccc2[nH]c(C(F)(F)F)cc2c1, Clc1cc(Cl)ncn1 to produce FC(F)(F)c1cc2cc(CNc3cc(Cl)ncn3)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.