CCOc1ccc(S(=O)(=O)NC(C)(C)C)cc1-c1nc(O)c2c(n1)c(C(C)(C)C)nn2C
The negative base-10 logarithmic of dissociation constant (pKa) for an acid is a direct consequence of the underlying thermodynamics of the dissociation reaction; the negative pKa value is directly proportional to the standard Gibbs free energy change for the reaction. What is the negative pKa value of this molecule?