Using O=C(O)c1c[nH]c(=O)o1, C[C@@](CO)(C[C@H](N)Cc1ccc(-c2cc(Cl)ccc2F)cc1)C(=O)O to produce C[C@@](CO)(C[C@@H](Cc1ccc(-c2cc(Cl)ccc2F)cc1)NC(=O)c1c[nH]c(=O)o1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.