Using O=C(O)c1cnc2cc(C(F)(F)F)ccc2c1O, NCc1ccc(Cl)cc1 to produce O=C(NCc1ccc(Cl)cc1)c1cnc2cc(C(F)(F)F)ccc2c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.