Using COc1cc(-c2cnc3[nH]cc(C(=O)C4(C)COC(C)(C)OC4)c3n2)cc(OC)c1OC to produce COc1cc(-c2cnc3[nH]cc(C(=O)C(C)(CO)CO)c3n2)cc(OC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.