NC(=O)c1nsc(C(=O)N(c2ccccc2F)C(C(=O)NCc2ccccc2)c2ccc(O)cc2)c1N
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?