11-Hydroxy-THC
Active metabolite of Δ9-THC
- UK: Class B
- (6aR,10aR)-9-(Hydroxymethyl)-6,6-dimethyl-3-pentyl- 6a,7,8,10a-tetrahydro-6H-benzo[c]chromen-1-ol
- 36557-05-8
N
- 37482
- 34385
Y
- 9VY04N5SLB
- C22778
- DTXSID50190061
- Interactive image
- Oc2cc(cc1OC(C3CC/C(=C\C3c12)CO)(C)C)CCCCC
InChI
- InChI=1S/C21H30O3/c1-4-5-6-7-14-11-18(23)20-16-10-15(13-22)8-9-17(16)21(2,3)24-19(20)12-14/h10-12,16-17,22-23H,4-9,13H2,1-3H3Y
- Key:YCBKSSAWEUDACY-UHFFFAOYSA-NY
N
Y (what is this?) (verify)11-Hydroxy-Δ9-tetrahydrocannabinol (11-OH-Δ9-THC, alternatively numbered as 7-OH-Δ1-THC), usually referred to as 11-hydroxy-THC is the main active metabolite of tetrahydrocannabinol (THC), which is formed in the body after Δ9-THC is consumed.[1][2]
After cannabis consumption, THC is metabolized inside the body by cytochrome P450 enzymes such as CYP2C9 and CYP3A4 into 11-hydroxy-THC and then further metabolized by dehydrogenase [which?] and CYP2C9 enzymes to form 11-nor-9-carboxy-THC (THC-COOH) which is inactive at the CB1 receptors;[2] and further glucuronidated to form 11-nor-Δ9-tetrahydrocannabinol-9-carboxylic acid glucuronide (Δ9-THC-COOH-glu)[3] in the liver, from where it is subsequently excreted through feces and urine (via bile from the liver).[4] Both metabolites, along with THC, can be assayed in drug tests.[1]
11-hydroxy-THC can be formed after consumption of THC from inhalation (vaping, smoking) and oral (by mouth, edible, sublingual) use, although levels of 11-hydroxy-THC are typically higher when eaten compared to inhalation.[5][6]
Pharmacology
Like Δ9-THC, 11-hydroxy-THC is a partial agonist at the cannabinoid receptor CB1, but with significantly higher binding affinity (Ki = 0.37 nM compared to Δ9-THC Ki = 35 nM).[7] With respect to cAMP inhibition at CB1 it displays a similar efficacy to that of Δ9-THC (EC50 = 11 nM vs. EC50 = 5.2 nM, respectively), but a lower maximum response (Emax = 28% vs. Emax = 70%).[7]
Research
In an in vitro analysis by the University of Rhode Island on cannabinoids it was found that 11-OH-Δ9-THC had the 3rd highest 3C-like protease inhibitor activity against COVID-19 out of all the cannabinoids tested within that study but not as high as the antiviral drug GC376 (56% for 11-OH-Δ9-THC vs. 100% for GC376).[8]
See also
- 11-Hydroxy-Delta-8-THC
- 11-Hydroxyhexahydrocannabinol
- 3'-Hydroxy-THC
- 7-Hydroxycannabidiol
- 8,11-Dihydroxytetrahydrocannabinol
- 11-OH-CBN
- Cannabis edible
- Delta-11-Tetrahydrocannabinol
References
- ^ a b Kraemer T, Paul LD (August 2007). "Bioanalytical procedures for determination of drugs of abuse in blood". Analytical and Bioanalytical Chemistry. 388 (7): 1415–1435. doi:10.1007/s00216-007-1271-6. PMID 17468860. S2CID 32917584.
- ^ a b Huestis MA (2005). "Pharmacokinetics and metabolism of the plant cannabinoids, delta9-tetrahydrocannabinol, cannabidiol and cannabinol". Cannabinoids. Handbook of Experimental Pharmacology. Vol. 168. pp. 657–690. doi:10.1007/3-540-26573-2_23. ISBN 3-540-22565-X. PMID 16596792.
- ^ Stout SM, Cimino NM (February 2014). "Exogenous cannabinoids as substrates, inhibitors, and inducers of human drug metabolizing enzymes: a systematic review". Drug Metabolism Reviews. 46 (1): 86–95. doi:10.3109/03602532.2013.849268. PMID 24160757. S2CID 29133059.
- ^ Grotenhermen F (2003). "Pharmacokinetics and pharmacodynamics of cannabinoids". Clinical Pharmacokinetics. 42 (4): 327–360. doi:10.2165/00003088-200342040-00003. PMID 12648025. S2CID 25623600.
- ^ Huestis MA, Henningfield JE, Cone EJ (1992). "Blood cannabinoids. I. Absorption of THC and formation of 11-OH-THC and THCCOOH during and after smoking marijuana". Journal of Analytical Toxicology. 16 (5): 276–282. doi:10.1093/jat/16.5.276. PMID 1338215.
- ^ Karschner EL, Schwilke EW, Lowe RH, Darwin WD, Herning RI, Cadet JL, Huestis MA (October 2009). "Implications of plasma Delta9-tetrahydrocannabinol, 11-hydroxy-THC, and 11-nor-9-carboxy-THC concentrations in chronic cannabis smokers". Journal of Analytical Toxicology. 33 (8): 469–477. doi:10.1093/jat/33.8.469. PMC 3159863. PMID 19874654.
- ^ a b Zagzoog A, Cabecinha A, Abramovici H, Laprairie RB (26 August 2022). "Modulation of type 1 cannabinoid receptor activity by cannabinoid by-products from Cannabis sativa and non-cannabis phytomolecules". Frontiers in Pharmacology. 13: 956030. doi:10.3389/fphar.2022.956030. PMC 9458935. PMID 36091813.
- ^ Liu C, Puopolo T, Li H, Cai A, Seeram NP, Ma H (September 2022). "Identification of SARS-CoV-2 Main Protease Inhibitors from a Library of Minor Cannabinoids by Biochemical Inhibition Assay and Surface Plasmon Resonance Characterized Binding Affinity". Molecules. 27 (18): 6127. doi:10.3390/molecules27186127. PMC 9502466. PMID 36144858.
- v
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(comparison)
| Cannabibutols |
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| Cannabichromenes | |
| Cannabicyclols |
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| Cannabidiols | |
| Cannabielsoins |
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| Cannabigerols | |
| Cannabiphorols |
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| Cannabinols | |
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|
| Delta-9-tetrahydrocannabinols | |
| Delta-10-Tetrahydrocannabinols | |
| Miscellaneous cannabinoids |
|
| Active metabolites |
|
- Arachidonoyl ethanolamide (AEA; anandamide)
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- 2-Oleoylglycerol (2-OG)
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- Oleamide
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- Palmitoylethanolamide (PEA)
- RVD-Hpα
- Stearoylethanolamide (SEA)
- O-Arachidonoyl ethanolamine (O-AEA; virodhamine)
cannabinoid
receptor
agonists /
neocannabinoids
| Classical cannabinoids (dibenzopyrans) |
|
|---|---|
| Non-classical cannabinoids |
|
| Adamantoylindoles |
|
| Benzimidazoles | |
| Benzoylindoles |
|
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|
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| Others |
|
enhancers
(inactivation inhibitors)
- 4-Nonylphenylboronic acid
- AM-404
- Arachidonoyl serotonin
- Arvanil
- BIA 10-2474
- Biochanin A
- CAY-10401
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- Genistein
- Guineesine
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- Olvanil
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- PF-04457845
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- VDM-11
(antagonists/inverse
agonists/antibodies)
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- PF-514273
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- Rosonabant (E-6776)
- SR-144,528
- Surinabant (SR147778)
- Taranabant (MK-0364)
- TM-38837
- VCHSR
- See also: Cannabinoid receptor modulators (cannabinoids by pharmacology)
- List of: AM cannabinoids
- JWH cannabinoids
- Designer drugs § Synthetic cannabimimetics
