Using CC1(C)O[C@H]2[C@H](n3cnc4c(Cl)nc(Cl)nc43)SC[C@H]2O1 to produce O[C@H]1[C@H](O)CS[C@H]1n1cnc2c(Cl)nc(Cl)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.