Cannabinoids (/kəˈnæbənɔɪdzˌˈkænəbənɔɪdz/) are several structural classes of compounds found in the cannabis plant primarily and most animal organisms (although insects lack such receptors) or as synthetic compounds.[1][2] The most notable cannabinoid is the phytocannabinoidtetrahydrocannabinol (THC) (delta-9-THC), the primary psychoactive compound in cannabis.[3][4]Cannabidiol (CBD) is also a major constituent of temperate cannabis plants and a minor constituent in tropical varieties.[5] At least 100 distinct phytocannabinoids have been isolated from cannabis, although only four (i.e., THCA, CBDA, CBCA and their common precursor CBGA) have been demonstrated to have a biogenetic origin.[6] It was reported in 2020 that phytocannabinoids can be found in other plants such as rhododendron, licorice and liverwort,[7] and earlier in Echinacea.
Phytocannabinoids are multi-ring phenolic compounds structurally related to THC,[8] but endocannabinoids are fatty acid derivatives. Nonclassical synthetic cannabinoids (cannabimimetics) include aminoalkylindoles, 1,5-diarylpyrazoles, quinolines, and arylsulfonamides as well as eicosanoids related to endocannabinoids.[3]
^ abLambert DM, Fowler CJ (August 2005). "The endocannabinoid system: drug targets, lead compounds, and potential therapeutic applications". Journal of Medicinal Chemistry. 48 (16): 5059–5087. doi:10.1021/jm058183t. PMID16078824.
^Pate, DW (1999). Anandamide structure-activity relationships and mechanisms of action on intraocular pressure in the normotensive rabbit model. Kuopio University Publications A. Pharmaceutical Sciences Dissertation 37, ISBN951-781-575-1