JWH-171 is an analgesic drug which acts as a cannabinoid receptor agonist. Its binding affinity at the CB1 receptor is only 51nM, making it slightly less potent than THC itself,[1] however JWH-171 is particularly notable in that it is a hydrocarbon containing no heteroatoms. This demonstrates that reasonably high-affinity cannabinoid binding and agonist effects can be produced by compounds with no hydrogen bonding capacity at all, relying merely on Van der Waals interactions to bind to the receptor.[2] References
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