CCOC(=O)N1CCc2c(sc3c2c(=O)n(Cc2ccccc2)c(=O)n3CC(=O)Nc2ccccc2F)C1
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?