COC(=O)C1=C(c2ccc(F)cc2OCc2ccccc2)C[C@@H]2CC[C@H]1N2C(=O)NCc1ccccc1C(F)(F)F
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?