Cc1ccc([C@@H]2[C@@H]3C(=O)N(c4ccccc4)C(=O)[C@@H]3[C@]3(C)C(=O)N(Cc4ccc(-c5ccccc5)cc4)CC(=O)N23)o1
The negative base-10 logarithmic of dissociation constant (pKa) for an acid is a direct consequence of the underlying thermodynamics of the dissociation reaction; the negative pKa value is directly proportional to the standard Gibbs free energy change for the reaction. What is the negative pKa value of this molecule?