Using COC[C@H](C)Oc1cc(Oc2ccc(S(C)(=O)=O)cc2)cc(-c2ccc(-c3nccs3)[nH]2)c1 to produce C[C@@H](CO)Oc1cc(Oc2ccc(S(C)(=O)=O)cc2)cc(-c2ccc(-c3nccs3)[nH]2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.