Using NCCCCC(=O)O, CCCN(CCC)c1ccc(S(=O)(=O)Cl)cc1 to produce CCCN(CCC)c1ccc(S(=O)(=O)NCCCCC(=O)O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.