AM-2389 is a classical

cannabinoid Cannabinoids () are several structural classes of compounds found primarily in the ''Cannabis'' plant or as synthetic compounds. The most notable cannabinoid is the phytocannabinoid tetrahydrocannabinol (THC) (delta-9-THC), the primary psychoact ...

derivative which acts as a potent and reasonably selective

agonist An agonist is a chemical that activates a Receptor (biochemistry), receptor to produce a biological response. Receptors are Cell (biology), cellular proteins whose activation causes the cell to modify what it is currently doing. In contrast, an R ...

for the CB₁

receptor Receptor may refer to: * Sensory receptor, in physiology, any neurite structure that, on receiving environmental stimuli, produces an informative nerve impulse *Receptor (biochemistry), in biochemistry, a protein molecule that receives and respond ...

, with a ''K''_i of 0.16 nM, and 26× selectivity over the related CB₂ receptor. It has high potency in animal tests of cannabinoid activity, and a medium duration of action. Replacing the 1',1'-dimethyl substitution of the dimethylheptyl side chain of classical cannabinoids with cyclopropyl or cyclopentyl results in higher potency than cyclobutyl, but only the cyclobutyl derivatives show selectivity for CB₁ over CB₂. High selectivity for CB₁ over CB₂ is difficult to achieve (cf. AM-906,

AM-1235 AM-1235 (1-(5-fluoropentyl)-3-(naphthalen-1-oyl)-6-nitroindole) is a drug that acts as a potent and reasonably selective agonist for the cannabinoid receptor CB1. Pharmacology Pharmacodynamics AM-1235 is a cannabinoid receptor agonist with ...

), as almost all commonly used CB₁ agonists have similar or greater affinity for CB₂ than CB₁, and the only truly highly selective CB₁ agonists known as of 2012 are eicosanoid derivatives such as

O-1812 O-1812 is an eicosanoid derivative related to anandamide that acts as a potent and highly selective agonist for the cannabinoid receptor CB1, with a ''K''i of 3.4 nM at CB1 and 3870 nM at CB2. Unlike most related compounds, O-1812 is ...

References

{{Cannabinoids AM cannabinoids Benzochromenes Cyclobutanes

See also

References