Using Nc1c(Cl)cc(Nc2ccc(CCO)cc2)c2c1C(=O)c1ccccc1C2=O, OCCS to produce Nc1c(SCCO)cc(Nc2ccc(CCO)cc2)c2c1C(=O)c1ccccc1C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.