COC(=O)[C@]1(C)N[C@H](CN(C)C(=O)Nc2ccc(OC)cc2)[C@@H]2C(=O)N(Cc3ccccc3)C(=O)[C@@H]21.O=C(O)C(F)(F)F
An acid's negative base-10 logarithmic dissociation constant (pKa) follows directly from its underlying thermodynamics; the negative pKa is directly proportional to its standard Gibbs free energy change. What is the negative pKa value of this molecule?