Using CC(O)c1nc(NC(=O)c2c(F)cccc2F)sc1-c1cccc(C(F)(F)F)c1 to produce CC(=O)c1nc(NC(=O)c2c(F)cccc2F)sc1-c1cccc(C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.