S=c1nc(Nc2ccc(Br)cc2)c2c3c(sc2[nH]1)CN(N1CCc2c(sc4[nH]c(=S)nc(Nc5ccc(Br)cc5)c24)C1)CC3
The quantitative estimate of drug-likeness (QED) is the most commonly used quantitative drug efficacy assessment method. Please predict the molecule's qed.