Using CCOC(=O)c1cc2cc(NS(=O)(=O)CCCN3CCCCC3)ccc2[nH]1 to produce O=C(O)c1cc2cc(NS(=O)(=O)CCCN3CCCCC3)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.