O=C1OCCN1C(=O)[C@H]1[C@H](c2ccc([N+](=O)[O-])cc2)C(c2cccc(Cl)c2)=NN1c1ccc(Br)cc1
The quantitative estimate of drug-likeness (QED) is the most commonly used quantitative drug efficacy assessment method. Please predict the molecule's qed.