CN1C(=O)[C@H]2[C@@H](C1=O)[C@@H](c1ccc(F)cc1)N1C(=O)c3ccccc3NC(=O)[C@@H]21
An acid's negative base-10 logarithmic dissociation constant (pka) follows directly from its underlying thermodynamics; pKa is directly proportional to its standard Gibbs free energy change. What is the pka value of this molecule?