NC1=NC2(COC(c3ccccc3)(c3ccccc3)c3ccccc3)OC(COC(c3ccccc3)(c3ccccc3)c3ccccc3)C(O)C2O1
The quantitative estimate of drug-likeness (QED) is the most commonly used quantitative drug efficacy assessment method. Please predict the molecule's qed.