CC(=O)OC[C@@H]1O[C@H](C/C=N\O[C@@H](C)c2cn([C@H]3COC[C@H]3O)nn2)C=C[C@@H]1OC(C)=O
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?