COc1ccc(C2(c3ccc(OC)cc3)NC(=O)N(Cn3nnc4ccccc4c3=O)C2=O)cc1
An acid's negative base-10 logarithmic dissociation constant (pKa) follows directly from its underlying thermodynamics; the negative pKa is directly proportional to its standard Gibbs free energy change. What is the negative pKa value of this molecule?