CC(C)C[C@H]1CN([C@@H](Cc2ccc(O)cc2)CN2CCC[C@@H]2CN2C(=S)NC[C@@H]2Cc2ccccc2)C(=S)N1CC1CCCCCC1
A lower number of negative pKa indicates that the acid dissociates more entirely in water. What is the negative pKa of this molecule?