CB1 IN 1

CB1-IN-1 (DBPR211) is a peripherally restricted CB1R antagonist, for CB1R and CB2R with Ki of 0.3 nM and 21 nM,respectively.

PSNCBAM-1 (PSNCBAM 1) is a CB1 receptor negative allosteric modulator (EC50 = 0.1 μM) with hypophagic effects in vivo. PSNCBAM-1 can be used for obesity studies.

Arvanil (N-Vanillylarachidonamide) is a synthetic capsaicin-amphetamine hybrid and a ligand for vanilloid receptor 1 (VR1) and cannabinoid receptor 1 (CB1), exhibiting neuroprotective activity, inhibiting spasm, and enhancing cisplatin chemotherapy sensitivity by inducing ferroptosis in HCC cells in vivo. It induces ferroptosis in liver cancer cells via binding to MICU1.

Rimonabant (SR141716) is an inverse agonist for the cannabinoid receptor CB1. It is an anorectic anti-obesity drug produced and marketed by Sanofi-Aventis. Its main avenue of effect is a reduction in appetite. Rimonabant is the first selective CB1 receptor blocker to be approved for use anywhere in the world. Rimonabant is approved in 38 countries including the E.U., Mexico, and Brazil. It was rejected for approval for use in the United States.

COR659 is a GABAB positive allosteric modulator (PAM) . COR659 suppresses alcohol and chocolate self-administration in rats[1]. COR659 apparently exerts its effects via a composite mechanism, including positive allosteric modulation of the GABAB receptor and an action at the cannabinoid CB1 receptor[3]. COR659 (0, 2.5, 5 and 10 mg kg) treatment is completely ineffective on lever-responding (FR10) for regular food pellets in food-deprived Wistar rats[1].COR659 is able to suppress lever-responding for a sucrose solution in sP rats and a chocolate solution in Wistar rats[2]. Animal Model: Male sP and Wistar rats[1]. [1]. Paola Maccioni, et al. Suppressing effect of COR659 on alcohol, sucrose, and chocolate self-administration in rats: involvement of the GABA B and cannabinoid CB 1 receptors. Psychopharmacology (Berl). 2017 Sep;234(17):2525-2543. [2]. Francesca Ferlenghi, et al. The GABA B receptor positive allosteric modulator COR659: In vitro metabolism, in vivo pharmacokinetics in rats, synthesis and pharmacological characterization of metabolically protected derivatives. Eur J Pharm Sci. 2020 Dec 1;155:105544. [3]. Paola Maccioni, et al. Anti-addictive properties of COR659 - Additional pharmacological evidence and comparison with a series of novel analogues. Alcohol. 2019 Mar;75:55-66.

RTICBM-189 is a potent, brain-penetrant allosteric modulator of the cannabinoid type-1 (CB1) receptor with a pIC50 of 7.54 in the Ca2+ mobilization assay, and exhibits pIC50s of 5.29 for hCB1 and 6.25 for mCB1.

AM9405 is a novel peripherally active cannabinoid type 1 (CB1) and serotonin type 3 receptor agonist. It inhibits twitch contraction of the ileum and colon with IC50 values of 45.71 nM and 0.076 nM, respectively. AM9405 significantly slowed mouse intestinal motility under physiological conditions and reversed hypermotility, reducing pain in mouse models that mimic symptoms of functional GI disorders, such as stress-induced diarrhea and writhing test.

CB1 antagonist 1 is a CB1 receptor antagonist, used in the research of obesity and metabolic syndrome, neuroinflammatory disorders, cognitive disorders, and gastrointestinal disorders, psychosis, and cardiovascular.

Leelamine hydrochloride, a tricyclic diterpene extracted from pine tree bark, inhibits the transcriptional activity of the androgen receptor, known to regulate fatty acid synthesis [2,3]. This compound acts as a cannabinoid receptor type 1 (CB1) agonist and suppresses SREBP1-regulated fatty acid lipid synthesis in prostate cancer cells, irrespective of androgen receptor status.

Taranabant (MK-0364) is a selective and potent cannabinoid 1 (CB1) receptor inverse agonist used in the study of obesity and nicotine dependence.

CB1 antagonist 2 (AM4113) is caimabinoid 1 (CB1) antagonist which inhibits CB1 in vivo with an IC50 of 25.5 nM.

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

Delta8-THC acetate (Delta8-tetrahydrocannabinol) is a psychoactive cannabinoid that binds to the cannabinoid receptor 1 (CB1 receptor) and exhibits anti-nausea, appetite-stimulating, and anti-inflammatory effects. It may also offer neuroprotective benefits and has potential applications in research on anxiety and depression.

LH-21 is a potent in vivo neutral cannabinoid CB1 receptor antagonist that reduces food intake and body weight gain in obese Zucker rats, resulting in a dose-dependent inhibition of feeding [1].

Ibipinabant (SLV319) is a potent, selective, and orally active cannabinoid CB1 receptor antagonist, with a K_i of 7.8 nM and over 1000-fold selectivity for CB1 compared to CB2 (K_i = 7943 nM). It is utilized in obesity and diabetes research [1] [2] [3].

AM6545 is a selective and potent peripheral restricted cannabinoid receptor 1 (CB1) antagonist that inhibits the CB2 receptor, ameliorates hypometabolic obesity and improves adipokine secretion in monosodium glutamate-induced obese mice, and may be useful in the study of obesity and diabetes.

O-2050 is a high-affinity cannabinoid CB1 receptor antagonist with a Ki of 2.5 nM and inhibits the cannabinoid CB2 receptor with a Ki of 0.2 nM. O-2050 decreased food intake and stimulated locomotion in mice [1].

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].

URB754 is a potent and noncompetitive inhibitor of monoacylglycerol lipase (MAGL), exhibiting an IC50 value of 200 nM for the recombinant rat brain enzyme. However, it does not inhibit human recombinant, rat brain, or mouse brain MAGL at concentrations up to 100 μM. There is evidence that the MAGL inhibitory activity of URB754 may be attributed to the impurity bis(methylthio)mercurane (IC50 = 11.9 nM for rat recombinant MAGL) that is found in commercial preparations. URB754 inhibits rat brain fatty acyl amide hydrolase (FAAH) with an IC50 value of 32 μM and binds weakly to the rat central cannabinoid (CB1) receptor with an IC50 value of 3.8 μM. It does not inhibit COX-1 or COX-2 at concentrations up to 100 μM. Inhibition of MAGL hydrolysis of 2-arachidonoyl glycerol (2-AG) is associated with enhanced stress-induced analgesia and may represent a novel drug target in pain and stress management.

N-Acylated ethanolamines (NAE) are naturally-occurring lipids that have diverse bioactivities. For example, arachidonoyl ethanolamide (AEA) is an endogenous neurotransmitter that evokes cellular responses by activating the cannabinoid receptors, central cannabinoid (CB1) and peripheral cannabinoid (CB2). The different types of NAE are derived from glycerophospho-linked precursors by the activity of glycerophosphodiesterase 1 (GDE1). Glycerophospho-N-palmitoyl ethanolamine (GP-NPEA) is the metabolic precursor of palmitoyl ethanolamide (PEA). PEA is an endogenous cannabinoid found in brain, liver, and other mammalian tissues, that has potent anti-inflammatory activity in vivo. PEA has low affinity for peripheral cannabinoid (CB2) and no appreciable affinity for central cannabinoid (CB1), suggesting that its efficacy is through a different receptor.

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.

N-(1-(3,4-Dihydroxyphenyl)propan-2-yl)oleamide binds to the cannabinoid 1 (CB1) receptor with a Ki value of 365 nM in a radioligand binding assay using rat brain homogenate. It has an EC50 value of 698 nM for the peroxisome proliferator-activated receptor α (PPARα) in a luciferase reporter assay and, in rats, it decreases food intake. It does not inhibit fatty acid amide hydrolase (FAAH).

CB1-IN-2 (Compound 4g) is a potent and selective CB1 receptor inhibitor with an IC50 value of 0.644 μM. It can penetrate the blood-brain barrier and may induce central nervous system (CNS) side effects similar to Rimonabant [1].