CC(C)O.CCCC1(CCC)NC(=O)N(CC(=O)N2CCN(C(=O)c3ccco3)CC2)C1=O
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?