Using CS[C@H]1O[C@@H](c2ccc(Cl)c(Cc3ccc4c(c3)OCCO4)c2)[C@H](OC(C)=O)[C@@H](OC(C)=O)[C@@H]1OC(C)=O to produce CS[C@H]1O[C@@H](c2ccc(Cl)c(Cc3ccc4c(c3)OCCO4)c2)[C@H](O)[C@@H](O)[C@@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.