Using Cn1cc(-c2ccccc2)c2c(=O)[nH]cnc21, FC(F)(F)CI to produce Cn1cc(-c2ccccc2)c2c(=O)n(CC(F)(F)F)cnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.