C[C@@H](c1ccccc1)N1C(=O)[C@H]2CC[C@H]3/C(=N\OCc4ccccc4)C[C@@H](O)[C@@H](O)[C@@H]3[C@@H]2C1=O
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?