Using O=C(O)CCCCNS(=O)(=O)c1ccc(N2CCCCCCC2)cc1 to produce O=C1CCCCN1S(=O)(=O)c1ccc(N2CCCCCCC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.