Using COC(=O)[C@@H](N)CCSC, Cc1ccc(S(=O)(=O)N2CCC[C@H]2C(=O)O)cc1 to produce CSCC[C@H](NC(=O)[C@@H]1CCCN1S(=O)(=O)c1ccc(C)cc1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.