Cc1ccc(C)c(NC(=O)N2CCC(N3CCN(Cc4ccc(F)cc4)C(=O)C3=O)CC2)c1
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?