Cc1ccc(S(=O)(=O)N[C@@H]2COC(=O)C/C=C\[C@@H](C)[C@@H](NS(=O)(=O)c3ccc(C)cc3)COC(=O)C/C=C\[C@H]2C)cc1
A lower number of negative pKa indicates that the acid dissociates more entirely in water. What is the negative pKa of this molecule?