Using O=S(=O)(Cl)c1c(Cl)nc2sccn12, O=C(O)Cc1c[nH]c2ccccc12 to produce O=C(O)Cc1cn(S(=O)(=O)c2c(Cl)nc3sccn23)c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.