CCc1ccc2nc(O)c(C(c3nnnn3CCOC)N3CCN(c4ccccc4)CC3)cc2c1
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?