Using COC(=O)[C@@H](N)[C@@H](C)O, O=C(Cl)c1ccccc1 to produce COC(=O)[C@@H](NC(=O)c1ccccc1)[C@@H](C)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.