Using CCCn1c(Cl)nc2nc(-c3ccc(NCc4cccc(C(F)(F)F)c4)nc3)[nH]c2c1=O to produce CCCn1cnc2nc(-c3ccc(NCc4cccc(C(F)(F)F)c4)nc3)[nH]c2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.