Using Nc1cc(Cl)cc(S(=O)(=O)O)c1O, O=C(O)CC[C@H](NC(=O)OCc1ccccc1)C(=O)OCc1ccccc1 to produce N[C@@H](CCC(=O)Nc1cccc(S(=O)(=O)O)c1O)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.