Using O=S([O-])[O-], O=c1ccc2cc(OCCCCCl)ccc2[nH]1 to produce O=c1ccc2cc(OCCCCS(=O)(=O)O)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.