Using COC(=O)[C@@H](N)Cc1ccc(C2CC(=O)NS2(=O)=O)c(Cl)c1, O=C(Cl)OCc1ccccc1 to produce O=C1CC(c2ccc(C[C@H](NC(=O)OCc3ccccc3)C(=O)O)cc2Cl)S(=O)(=O)N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.