Using NCCCC(=O)O, O=C(c1ccc(S(=O)(=O)Cl)cc1)c1cccs1 to produce O=C(O)CCCNS(=O)(=O)c1ccc(C(=O)c2cccs2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.