COc1ccc([C@@H]2CC(=O)c3c(O)cc(O[C@H]4O[C@@H](CO[C@H]5O[C@@H](C)[C@@H](O)[C@@H](O)[C@@H]5O)[C@@H](O)[C@@H](O)[C@@H]4O)cc3O2)cc1O
The quantitative estimate of drug-likeness (QED) is the most commonly used quantitative drug efficacy assessment method. Please predict the molecule's qed.