Using CN=C(O)c1c(Cl)c(Cl)c(Cl)c(Cl)c1C(=O)O, COc1ccc(S)cc1 to produce CN=C(O)c1c(Cl)c(Cl)c(Sc2ccc(OC)cc2)c(Cl)c1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.