CCOC(=O)c1c(NC(=O)c2cc3n(n2)C(C(F)(F)F)CC(c2ccccc2)N3)sc(C)c1C
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?