Using C[C@@H](CSC(=O)c1ccc(Cl)c(S(N)(=O)=O)c1)C(=O)Cl, O=C(O)[C@@H]1CCCN1 to produce C[C@H](CSC(=O)c1ccc(Cl)c(S(N)(=O)=O)c1)C(=O)N1CCC[C@H]1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.