Using O=C(Nc1cccc(OC(F)(F)F)c1)[C@@H]1CC[C@H](CO)N1, O=C(Cl)OCc1ccccc1 to produce O=C(Nc1cccc(OC(F)(F)F)c1)[C@@H]1CC[C@H](CO)N1C(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.