CC(C)(C)OC(=O)C(Cc1ccc(OC(C)(C)C)cc1)NC(=O)CNC(=O)CNC(=O)OCc1ccccc1
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?