list of hu cannabinoids list of hu cannabinoids a research group led by raphael mechoulam at hebrew university has synthesized many cannabinoids. some of those are: hu-210 — a high affinity cb1 agonist (ki = 0.23 nm) hu-211 — the (+)-enantiomer of hu-210 with dramatically reduced cb1 affinity hu-239 — also known as ajulemic acid hu-243 hu-308 hu-320 hu-331 hu-336 hu-345