Using O=C(Cl)N1CCOCC1, COC(=O)[C@@H](N)CC(F)(F)CC(C)C to produce COC(=O)[C@H](CC(F)(F)CC(C)C)NC(=O)N1CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.