Using Nc1ccc(OC(F)(F)F)c(-c2nc3ccccc3o2)c1, O=C(Cl)OC(Cl)(Cl)Cl to produce O=C=Nc1ccc(OC(F)(F)F)c(-c2nc3ccccc3o2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.