CB1/2 agonist 1

CB1 2 agonist 1 is a potent CB1 2 agonist that crosses the blood-brain barrier, acting on CB1R (EC50: 56.15 nM) and CB2R (EC50: 11.63 nM). It reduces glutamate release and LPS-induced microglia activation, exhibiting anti-inflammatory and analgesic activities, with potential for multiple sclerosis studies.

CB1 2 receptor-1 (compound 5.3) serves as an agonist for CB1 2 receptors and is utilized in angiogenesis research.

LEI-101 is a potent, selective, and orally bioavailable cannabinoid CB2 receptor agonist, with a pEC50 of 8 for hCB2, and a pKi of less than 4 for hERG. LEI-101 is approximately 100-fold more potent in binding to CB2 receptors than to CB1 receptors. It has therapeutic potential in diseases associated with inflammation and or oxidative stress, including kidney disease [1] [2].

Arachidonoyl 2-chloroethylamide (ACEA) is a potent and selective cannabinoid (CB) receptor 1 agonist with Ki values of 1.4 and >2,000 nM for CB1 and CB2 receptors, respectively. In whole animal experiments, ACEA induces hypothermia in mice with the same efficacy as arachidonoyl ethanolamide , in spite of its higher affinity for the CB1 receptor. These data have been interpreted to indicate that ACEA may be a substrate for fatty acid amide hydrolase (FAAH), and thus only transiently available in whole animal experiments.

GAT229 is a positive allosteric modulator of cannabinoid receptor 1 (CB1) and the S-(-) enantiomer of the CB1 modulator GAT211. It does not activate the receptor on its own but enhances the binding and activity of CB agonists. GAT229 (1 μM) enhances the binding of the CB1 full agonist CP 55,940 to CHO cells expressing human recombinant CB1 (hCB1), as well as the activity of 2-arachidonoyl glycerol , arachidonoyl ethanolamide , and CP 55,940 in arrestin2 recruitment assays and increases ERK1/2 and PLCβ3 phosphorylation in HEK293 cells expressing hCB1. GAT229 (1 μM) enhances depolarization-induced suppression of excitation but does not inhibit excitatory postsynaptic currents (EPSCs) in murine autaptic hippocampal neurons. GAT229 (0.2%, topical) reduces intraocular pressure by 5.8 and 7.7 mm Hg after 6 and 12 hours, respectively, in a transgenic mouse model of ocular hypertension using nose, ear, eye mutation (nee) mice.

CB1 2 agonist 2 (compound 23) is a potent non-selective cannabinoid ligand with Ki values of 3.5 nM and 1.2 nM, respectively. It acts as a full agonist of CB1 and a competitive inverse agonist of CB2. BACE-IN-1 shares these properties, being a complete agonist of CB1 and a competitive inverse agonist of CB2.

AMG-315 is a Potent Endocannabinoid Ligand with Stability to Metabolizing Enzymes. AMG-315 is a chiral arachidonoyl ethanolamide (AEA) analogue or (13S,1′R)-dimethylanandamide. AMG-315 is a high affinity ligand for the CB1 receptor (Ki of 7.8 ± 1.4 nM) that behaves as a potent CB1 agonist in vitro (EC50 = 0.6 ± 0.2 nM). AMG-315 is the first potent AEA analogue with significant stability for all endocannabinoid hydrolyzing enzymes as well as the oxidative enzymes COX-2. AMG-315 will serve as a very useful endocannabinoid probe.

Hemopressin(rat) TFA, a nonapeptide originating from the α1-chain of hemoglobin, was first isolated from rat brain homogenates. It acts as an orally active, selective, and inverse agonist of the CB1 cannabinoid receptors and demonstrates antinociceptive effects in models of inflammatory pain [1] [2].

Hemopressin TFA, a nonapeptide originating from the α1-chain of hemoglobin and initially isolated from rat brain homogenates, is an orally active, selective inverse agonist of CB1 cannabinoid receptors that demonstrates antinociceptive effects in inflammatory pain models [1] [2].

MCHB-1, a potent agonist of the human cannabinoid 2 (CB2) receptor (EC50= 0.52 nM), demonstrates high selectivity for CB2 over CB1 (Kis = 3.7 and 110 nM, respectively), distinguishing itself from similar benzimidazole compounds that significantly alleviate peripheral pain while minimizing central nervous system side effects in mice.

2-Arachidonoylglycerol (2-AG) is identified as a more potent endogenous cannabinoid ligand compared to its analogue, 1-Arachidonoylglycerol (1-AG), exhibiting 10 to 100 times the ligand binding affinity and agonist activity at the CB1 receptor, thus making it a natural ligand. However, 2-AG's chemical instability leads to rapid isomerization to 1-AG (also referred to as 1(3)-AG) both in vitro and in vivo. This isomerization process, where 1-AG becomes a frequent contaminant in synthetic 1-AG preparations, significantly decreases their cannabinergic potency. Furthermore, 1-AG is characterized as a weak CB1 receptor agonist with potential for other pharmacological effects.

1-Arachidonoyl-d8-rac-glycerol (1-AG-d8) serves as an internal standard for 1-AG quantification via GC or LC-MS. As a weak CB1 receptor agonist, 1-AG exhibits potential pharmacological effects. Notably, 1-AG, an isomer of 2-AG, is more stable, avoiding the rapid in vitro and in vivo isomerization that diminishes 2-AG's cannabinergic efficacy due to conversion to 1-AG (also known as 1(3)-AG), a common impurity in synthetic 2-AG formulations.