CCOc1ccc(N2CC(C(=O)NCc3nnnn3-c3ccc(C)c(C)c3)CC2=O)cc1
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?