CCCCCCn1c(=O)n2n(c1=O)C[C@@]1(O)CN(S(=O)(=O)c3ccc(C)cc3)C[C@@]1(OC(=O)Nc1cccs1)C2
A lower number of negative pKa indicates that the acid dissociates more entirely in water. What is the negative pKa of this molecule?