2-Arachidonyl glycerol ether (2-AG ether) selectively binds to cannabinoid (CB) receptor 1 (Kis = 21.2 and >3,000 nM for CB1 and CB2, respectively, in a radioligand binding assay). It is a potent and selective agonist of CB1 and GPR55 with EC50 values of 10, 37, and >30,000 nM for CB1, GPR55, and CB2, respectively. 2-AG ether displays the typical tetrad of CB activities in mice. It is more chemically stable than 2-AG , with an endogenous half-life of hours rather than minutes. However, it is at least 10-fold less potent than 2-AG in eliciting typical CB1-mediated responses. 2-AG ether elicits modest reductions in intraocular pressure in rabbits when administered at doses exceeding 50 μg per eye. It increases aqueous humor outflow via the CB1 receptor in the trabecular meshwork. Administration of 2-AG ether to the nucleus accumbens (0.0625-1 μg) increases dietary intake and enhances fat consumption in rats given access to both high-carbohydrate and high-fat diets.
Endogenous agonist for the GPR55 and CB 1 receptors (EC 50 values are 10 and 37 nM respectively) that displays selectivity over CB 2 receptors (K i values are 21.2 nM and > 3mM at CB 1 and CB 2 respectively). Causes sedation, hypothermia, intestinal immobility and mild antinociception in vivo . Attenuates sensory neurotransmission in rat mesenteric arteries via GPR55. Also available as part of the Endocannabinoid Tocriset™ .
