COc1cc2ccc1NC(=O)N1CCN(CC1)C(=O)Nc1ccc(cc1OC)-c1ccc(c(OC)c1)NC(=O)N1CCN(CC1)C(=O)Nc1ccc-2cc1OC
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?