CC1CC(C)(C)CC2(C1)NC(=O)N(CC(=O)N1CCN(Cc3ccc(C#N)cc3)CC1)C2=O
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?