Using CC(C)(C)c1ccc2oc(-c3cc(Cl)ncc3C(F)(F)F)nc2c1 to produce CC(C)(C)c1ccc2oc(-c3ccncc3C(F)(F)F)nc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.