Using O=c1ccc2cc(OCCCCS(=O)(=O)c3ccccc3)ccc2[nH]1 to produce O=C1CCc2cc(OCCCCS(=O)(=O)c3ccccc3)ccc2N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.