CC(=O)Oc1ccc(C(=O)[C@H]2[C@H]3C(=O)N(c4ccc(C)cc4)C(=O)[C@H]3[C@@H]3C=CC=NN32)cc1
A lower number of negative pKa indicates that the acid dissociates more entirely in water. What is the negative pKa of this molecule?