Using CNC(=O)N1CC[C@H](C[C@@H](C(=O)Nc2ccc(C(=O)OCc3ccccc3)cn2)c2ccc(S(=O)(=O)C3CC3)cc2)C1 to produce CNC(=O)N1CC[C@H](C[C@@H](C(=O)Nc2ccc(C(=O)O)cn2)c2ccc(S(=O)(=O)C3CC3)cc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.