Using Cln1nnc2ccccc21, Cc1cnc2ccnn2c1-c1cccc(C(F)(F)F)c1 to produce Cc1cnc2c(Cl)cnn2c1-c1cccc(C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.