CC(=O)OCC(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C(=O)CNn1c(-c2ccccc2Cl)nc2ccc(Br)cc2c1=O
The quantitative estimate of drug-likeness (QED) is the most commonly used quantitative drug efficacy assessment method. Please predict the molecule's qed.