COc1ccc(-c2cn(-c3ccc(C)cc3)c(=O)n2CC(=O)Nc2cccc(F)c2)cc1
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?