Using CC(C)(N)C(=O)N[C@H](Cc1c[nH]c2ccccc12)C(=O)N1CCC2(CC1)CC(N(CC(=O)OCc1ccccc1)S(C)(=O)=O)c1ccccc12 to produce CC(C)(N)C(=O)N[C@H](Cc1c[nH]c2ccccc12)C(=O)N1CCC2(CC1)CC(N(CC(=O)O)S(C)(=O)=O)c1ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.