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