Using O=C=Nc1ccc(Cl)c(Cl)c1, SCCCN1CCN(Cc2ccc(Cl)cc2)CC1 to produce OC(Nc1ccc(Cl)c(Cl)c1)=[SH]CCCN1CCN(Cc2ccc(Cl)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.