Using NCCc1ncc(C(F)(F)F)cc1Cl, O=C(O)c1cccnc1C(F)(F)F to produce O=C(NCCc1ncc(C(F)(F)F)cc1Cl)c1cccnc1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.