N#C/C(=C/c1cn(-c2ccccc2)nc1-c1cccc(S(=O)(=O)N2CCOCC2)c1)C(=O)NCc1ccco1
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?