O[C@@H](c1cc([C@@]23C[C@H]4CC[C@@H]2C[C@H](C4)C3)nc2c(Cl)cc(Cl)cc12)[C@@H]1CCCCN1
The quantitative estimate of drug-likeness (QED) is the most commonly used quantitative drug efficacy assessment method. Please predict the molecule's qed.