Cc1ccc(S(=O)(=O)N2C[C@H]3[C@H]4C(=O)N(c5ccccc5)C(=O)[C@H]4C[C@H](OC(=O)NC4CC4)[C@@]3(O)C2)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?