AM 919

AM-919 (part of the AM cannabinoid series) is an analgesic drug which is a cannabinoid receptor agonist. It is a derivative of HU-210 which has been substituted with a 6β-(3-hydroxypropyl) group. This adds a "southern" aliphatic hydroxyl group to the molecule as seen in the CP-series of nonclassical cannabinoid drugs, and so AM-919 represents a hybrid structure between the classical and nonclassical cannabinoid families.

AM-919 is somewhat less potent than HU-210 itself, but is still a potent agonist at both CB₁ and CB₂ with moderate selectivity for CB₁, with a K_i of 2.2nM at CB₁ and 3.4nM at CB₂.