COC(=O)C1(NC(=O)C(Cc2ccccc2)N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C)CCCC1
An acid's negative base-10 logarithmic dissociation constant (pka) follows directly from its underlying thermodynamics; pKa is directly proportional to its standard Gibbs free energy change. What is the pka value of this molecule?