Using O=C(Nc1cc(C(F)(F)C(F)(F)F)ccc1O)c1ccncc1Cl to produce FC(F)(F)C(F)(F)c1ccc2oc(-c3ccncc3Cl)nc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.