COc1ccc2c(c1)O[C@H](c1ccc3c(c1)OCO3)[C@@H](OC(=O)Nc1cc(OC)c(OC)c(OC)c1)C2=O
The quantitative estimate of drug-likeness (QED) is the most commonly used quantitative drug efficacy assessment method. Please predict the molecule's qed.