CC(C)C[C@@H](NC(=O)[C@H]1CC[C@H](CNC(=O)[C@@H]2CCCN2C(=O)OC(C)(C)C)CC1)C(=O)O
The quantitative estimate of drug-likeness (QED) is the most commonly used quantitative drug efficacy assessment method. Please predict the molecule's qed.