Cc1ccc([C@@H]2[C@@H]3C(=O)N(c4ccccc4)C(=O)[C@@H]3[C@]3(Cc4ccccc4)C(=O)N(CC4CC4)CC(=O)N23)o1
A lower number of negative pKa indicates that the acid dissociates more entirely in water. What is the negative pKa of this molecule?