Using CS(=O)(=O)c1c(Cl)n(Cc2ccccc2)c2ccccc12, NCCS to produce CS(=O)(=O)c1c(SCCN)n(Cc2ccccc2)c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.