C[C@H]1CCCCO[C@@H](CN(C)S(=O)(=O)c2ccc(Cl)cc2)[C@H](C)CN([C@H](C)CO)C(=O)c2cc(NC(=O)Nc3ccc(F)cc3)ccc2O1
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?