O=C1N[C@@H](c2ccccc2)COC(=O)[C@@H](Cc2ccc(F)cc2)C/C=C\C[C@H]1CC(=O)N(CCO)Cc1ccccc1
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?