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Psilocin, also known as 4-hydroxy-N,N-dimethyltryptamine (4-OH-DMT), is a substituted tryptamine alkaloid and a serotonergic psychedelic. It is present in most psychedelic mushrooms together with its phosphorylated counterpart psilocybin. Psilocin is a Schedule I drug under the Convention on Psychotropic Substances. Acting on the serotonin 5-HT2A receptors, psilocin's psychedelic effects are directly correlated with the drug's occupancy at these receptor sites. The subjective mind-altering effects of psilocin are highly variable and are said to resemble those of lysergic acid diethylamide (LSD) and N,N-dimethyltryptamine (DMT).
N-Methyltryptamine (NMT), also known as monomethyltryptamine, is a chemical compound of the tryptamine family and a naturally occurring compound found in the human body and certain plants.
The 5-HT2A receptor is a subtype of the 5-HT2 receptor that belongs to the serotonin receptor family and is a G protein-coupled receptor (GPCR). The 5-HT2A receptor is a cell surface receptor, but has several intracellular locations.
A serotonin receptor agonist is an agonist of one or more serotonin receptors. They activate serotonin receptors in a manner similar to that of serotonin, a neurotransmitter and hormone and the endogenous ligand of the serotonin receptors.
Ariadne, also known chemically as 4C-D or 4C-DOM, by its developmental code name BL-3912, and by its former tentative brand name Dimoxamine, is a little-known psychoactive drug of the substituted phenethylamine family. It is a homologue of the psychedelics 2C-D and DOM.
Pruvanserin is a selective 5-HT2A receptor antagonist which was under development by Eli Lilly and Company for the treatment of insomnia. It was in phase II clinical trials in 2008 but appears to have been discontinued as it is no longer in the company's development pipeline. In addition to its sleep-improving properties, pruvanserin has also been shown to have antidepressant, anxiolytic, and working memory-enhancing effects in animal studies.
5-MeO-NBpBrT is a N-substituted member of the methoxytryptamine family of compounds. Like other such compounds it acts as an antagonist for the 5-HT2A receptor, with a claimed 100x selectivity over the closely related 5-HT2C receptor. While N-benzyl substitution of psychedelic phenethylamines often results in potent 5-HT2A agonists, it had been thought that N-benzyl tryptamines show much lower efficacy and are either very weak partial agonists or antagonists at 5-HT2A, though more recent research has shown stronger agonist activity for 3-substituted benzyl derivatives. Extending the benzyl group to a substituted phenethyl can also recover agonist activity in certain cases.
5-HT2C receptor agonists are a class of drugs that activate 5-HT2C receptors. They have been investigated for the treatment of a number of conditions including obesity, psychiatric disorders, sexual dysfunction and urinary incontinence.
O-4310 (1-isopropyl-6-fluoro-psilocin) is a tryptamine derivative developed by Organix Inc which acts as a serotonin receptor agonist. It is claimed to have an EC50 of 5 nM at the 5-HT2A receptor with 89% efficacy relative to serotonin, and 100-fold selectivity over the 5-HT2C receptor, while being apparently inactive at the 5-HT2B antitarget.
1-Methylpsilocin (developmental code names CMY, CMY-16) is a tryptamine derivative developed by Sandoz which acts as a selective agonist of the serotonin 5-HT2C receptor (IC50Tooltip half-maximal inhibitory concentration of 12 nM, vs. 633 nM at 5-HT2A), and an inverse agonist at 5-HT2B (Ki of 38 nM). While 1-methylpsilocin does have higher affinity for 5-HT2C than 5-HT2A, it does produce a head-twitch response in mice that is dependent on 5-HT2A, so it is not entirely free of effects on 5-HT2Ain vivo. In contrast to psilocin, 1-methylpsilocin did not activate 5-HT1A receptors in mice.
Lysergine, also known as 9,10-didehydro-6,8β-dimethylergoline, is an ergot alkaloid and serotonin receptor agonist of the ergoline family. It is a minor constituent of ergot.
ITI-1549 is a putatively non-hallucinogenic serotonin 5-HT2A receptor agonist which is under development for the treatment of mood disorders and other psychiatric disorders. In addition to acting at the serotonin 5-HT2A receptor, it is also an antagonist of the serotonin 5-HT2B receptor and an agonist of the serotonin 5-HT2C receptor. The drug's route of administration has not been specified.
(R)-3,4-Methylenedioxy-N-methylamphetamine ((R)-MDMA), also known as (R)-midomafetamine or as levo-MDMA, is the (R)- or levorotatory (l-) enantiomer of 3,4-methylenedioxy-N-methylamphetamine (MDMA; midomafetamine; "ecstasy"), a racemic mixture of (R)-MDMA and (S)-MDMA. Like MDMA, (R)-MDMA is an entactogen or empathogen. It is taken by mouth.
Bexicaserin is a selective serotonin 5-HT2C receptor agonist which is under development for the treatment of seizures in developmental disabilities such as Dravet syndrome and Lennox-Gastaut syndrome. It is taken by mouth.
MSP-1014 is a serotonergic psychedelic which is under development for the treatment of major depressive disorder, other depressive disorders, and anxiety disorders.
BMB-101 is a serotonin 5-HT2C receptor agonist which is under development for the treatment of absence epilepsy, Pitt-Hopkins syndrome, Dravet syndrome, binge-eating disorder, Lennox-Gastaut syndrome, and opioid-related disorders. It is taken by mouth.
BMB-202 is a serotonin 5-HT2A receptor agonist and psychedelic hallucinogen which is under development for the treatment of depressive disorders and post-traumatic stress disorder (PTSD). It is taken by mouth. However, BMB-202 has also been evaluated by injection in preclinical studies.
MYCO-005 is a serotonin 5-HT2A receptor agonist and psychedelic hallucinogen which is under development for the treatment of depressive disorders and anxiety disorders.
References
- 1 2 3 4 5 6 "Delving into the Latest Updates on BMB-201 with Synapse". Synapse. 29 October 2024. Retrieved 30 October 2024.
- 1 2 3 4 5 6 "BMB-201 Drug Profile". Ozmosi. Retrieved 30 October 2024.
- 1 2 3 4 5 6 7 8 Vasilkevich A, Duan J, Lovera A, McCorvy J, Pedersen JT (October 2024). Novel 5-HT2A/2C mixed and partial agonist and its efficacy in preclinical pain models (PDF). Society for Neuroscience 2024 Annual Meeting, Chicago, October 5-9.
- 1 2 3 4 5 6 7 8 9 "Bright Minds Investor Deck" (PDF). Bright Minds Biosciences Inc. September 2024.
- ↑ "Bright Minds Biosciences proprietary compound, BMB-201, 5-HT2C/2A mixed agonist, demonstrated similar efficacy to morphine in preclinical pain models". BioSpace. 17 October 2024. Retrieved 30 October 2024.