Hit & Run regular and admitted Kiwi dbcooper linked to this study of Boar Taint compounds. These include Androstenone, which reportedly smells either like urine or flowers, and is artificially created and sold commercially as "Boarsmate".
Apparently, indole is also a component. Indole is an aromatic heterocyclic organic compound, which forms the basis for numerous other compounds, including the tryptamine psychedelics, such as psilocybin and LSD. Somehow, though, I doubt that we'll see anyone licking boar taint to get high.