Using O=S(=O)(Cl)c1ccc(Cl)nc1, O=Cc1c[nH]c(-c2ccccc2)c1 to produce O=Cc1cc(-c2ccccc2)n(S(=O)(=O)c2ccc(Cl)nc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.