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RU-28253
RU-28253 is a non-selective serotonin receptor agonist of the tryptamine and 5-methoxytryptamine families. It is a tetrahydropyridylindole and a conformationally constrained analogue of 5-MeO-DMT. The drug shows high affinity for the serotonin 5-HT1A receptor (Ki = 5.7nM) and lower affinity for the serotonin 5-HT2A receptor (Ki = 230nM). Its affinities for these receptors were higher than those of dimethyltryptamine (DMT). RU-28253 is described as a potent agonist of the serotonin 5-HT1 and 5-HT2 receptors, including of the serotonin 5-HT1B receptor, and is also an agonist of the serotonin 5-HT4 receptor. RU-28253 was first described in the scientific literature by 1983. See also * Cyclized tryptamine * VU6067416 * RS134-49 * (''R'')-69 * RU-24,969 * EMD-386088 * SN-22 * MPMI * Pyr-T Pyr-T, also known as ''N'',''N''-tetramethylenetryptamine or as 3-(2-pyrrolidinoethyl)indole, is a lesser-known serotonin receptor modulator of the tryptamine family. It is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclized Tryptamine
Substituted tryptamines, or simply tryptamines, also known as serotonin analogues (i.e., 5-hydroxytryptamine analogues), are organic compounds which may be thought of as being derived from tryptamine itself. The molecular structures of all tryptamines contain an indole ring, joined to an amino group, amino (NH2) group via an ethyl (−CH2–CH2−) side chain, sidechain. In substituted tryptamines, the indole ring, sidechain, and/or amino group are modified by substituting another group for one of the hydrogen (H) atoms. Well-known tryptamines include serotonin, an important neurotransmitter, and melatonin, a hormone involved in regulating the sleep-wake cycle. Tryptamine alkaloids are found in fungi, plants and animals; and sometimes used by humans for the neurological or psychotropic effects of the substance. Prominent examples of tryptamine alkaloids include psilocybin (from "psilocybin mushrooms") and dimethyltryptamine, DMT. In South America, dimethyltryptamine is obtained f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EMD-386088
EMD-386088 is an indole derivative which is used in scientific research. It acts as a potent 5-HT6 receptor partial agonist, with a Ki of 1 nM, a significantly higher affinity than older 5-HT6 agonists such as EMDT, although it possesses moderate affinity for the 5-HT3 receptor as well. Subsequent research has determined that EMD-386088 is also a dopamine reuptake inhibitor and that this action is involved in the antidepressant-like effects of the drug in rodents. EMD-386088 can be further reacted with a butyrophenone sidechain.Genus Possanza, Kurt Freter, & Sven Luttke, (1976 to Boehringer Ingelheim GmbH). See also * 2-Methyltryptamine * EMDT * RU-24,969 * RU-28253 RU-28253 is a non-selective serotonin receptor agonist of the tryptamine and 5-methoxytryptamine families. It is a tetrahydropyridylindole and a conformationally constrained analogue of 5-MeO-DMT. The drug shows high affinity for the serotonin ... * ST-1936 References 5-HT6 agonists Chloroa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RU-24,969
RU-24,969 is a serotonin receptor modulator related to 5-MeO-DMT which is used in scientific research. It is a selective agonist of the serotonin 5-HT1A and 5-HT1B receptors, with 5-fold preference for the latter receptor over the former. In studies, its affinities (Ki) were 2nM for the serotonin 5-HT1 receptor, 5nM for the serotonin 5-HT1A receptor, 4nM for the serotonin 5-HT1B receptor, 780 to 1,000nM for the serotonin 5-HT2 receptor, and 400nM for the serotonin 5-HT2C receptor. It also has affinity for the serotonin 5-HT5A, 5-HT5B, and 5-HT7 receptors. The drug produces MDMA-like locomotor hyperactivity in animals and this is thought to be mediated by activation of both serotonin 5-HT1A and 5-HT1B receptors. As with other serotonin 5-HT1B receptor agonists such as CP-94,253, RU-24,969 has also been found to increase the reinforcing properties of cocaine in animals, suggesting a role for serotonin 5-HT1B receptors in cocaine addiction as well. RU-24,969 was first de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
(R)-69
(''R'')-69 (3IQ) is a tetrahydropyridine derivative which acts as a 5-HT2A receptor agonist, with 4.6-fold selectivity over 5-HT2B and 49-fold selectivity over 5-HT2C. It has a 5-HT2A Ki of 680 nM and an EC50 of 41 nM. (''R'')-69 is a biased agonist selective for activation of the Gq coupled signalling pathway, with much weaker activation of the β-arrestin 2 coupled pathway. In animal studies it produces antidepressant-like activity but without producing the head-twitch response associated with psychedelic effects. See also * 25N-N1-Nap * RU-24969 * RU-28253 * SN-22 * VU6067416 * Z3517967757 * Zalsupindole * Ultra-large-scale docking Ultra-large-scale docking, sometimes abbreviated as Ultra-LSD, is an ultra-large-scale approach to protein–ligand docking and virtual screening. It employs molecular docking campaigns against libraries of millions or billions of chemical compound ... References Designer drugs Non-hallucinogenic 5-HT2A receptor agonists Pyrrolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RS134-49
RS134-49 is a tetrahydropyridine derivative related to psychedelic tryptamines which acts as a 5-HT2A receptor agonist, with a 5-HT2A Ki of 11.5nM and an EC50 of 22nM. It is a biased agonist selective for activation of the Gq coupled signalling pathway with weaker activation of the β-arrestin 2 coupled pathway, but shows a more balanced profile than related compounds such as (R)-69. See also * Cyclized tryptamine * RU-28253 * 4-Methyl-α-methyltryptamine * 4-Methyl-α-ethyltryptamine * CP-94253 * RU-24,969 * SN-22 SN-22 is a chemical compound which acts as a moderately selective agonist at the 5-HT2 family of serotonin receptors, with a Ki of 19 nM at 5-HT2 subtypes versus 514 nM at 5-HT1A receptors. Many related derivatives are known, most of ... * VU6067416 References Designer drugs N-Monoalkyltryptamines Tetrahydropyridinylindoles {{nervous-system-drug-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VU6067416
VU6067416 is an indazole derivative which acts as an agonist for the 5-HT2 family of serotonin receptors. It is a potent full agonist at 5-HT2B, and has slightly lower affinity and partial agonist effects at 5-HT2A and 5-HT2C, though some related compounds have improved selectivity for 5-HT2A. See also * RU-28253 * (''R'')-69 * 6-APB * BW-723C86 * RS134-49 * VER-3323 VER-3323 is a drug which acts as a selective agonist for both the 5-HT2B receptor, 5-HT2B and 5-HT2C receptor, 5-HT2C serotonin Receptor (biochemistry), receptor subtypes, with moderate selectivity for 5-HT2C, but relatively low affinity for 5-HT ... References 5-HT2B agonists Serotonin receptor agonists Indazoles Bromoarenes Tetrahydropyridines {{nervous-system-drug-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Binding Selectivity
In chemistry, binding selectivity is defined with respect to the binding of ligands to a substrate forming a complex. Binding selectivity describes how a ligand may bind more preferentially to one receptor than another. A selectivity coefficient is the equilibrium constant for the reaction of displacement by one ligand of another ligand in a complex with the substrate. Binding selectivity is of major importance in biochemistry and in chemical separation processes. Selectivity coefficient The concept of selectivity is used to quantify the extent to which one chemical substance, A, binds each of two other chemical substances, B and C. The simplest case is where the complexes formed have 1:1 stoichiometry. Then, the two interactions may be characterized by equilibrium constants and .The constant used here are ''association'' constants. ''Dissociation'' constants are used in some contexts. A dissociation constant is the reciprocal of an association constant. \begin \ce;& \quad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
5-HT4 Receptor
5-Hydroxytryptamine receptor 4 is a protein that in humans is encoded by the ''HTR4'' gene. Function This gene is a member of the family of human serotonin receptors, which are G protein-coupled receptors that stimulate cAMP production in response to serotonin (5-hydroxytryptamine). The gene product is a glycosylated transmembrane protein that functions in both the peripheral and central nervous system to modulate the release of various neurotransmitters. Multiple transcript variants encoding proteins with distinct C-terminal sequences have been described, but the full-length nature of some transcript variants has not been determined. Location The receptor is located in the alimentary tract, urinary bladder, heart and adrenal gland as well as the central nervous system (CNS). In the CNS the receptor appears in the putamen, caudate nucleus, nucleus accumbens, globus pallidus, and substantia nigra, and to a lesser extent in the neocortex, raphe, pontine nuclei, and some a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
5-HT1B Agonists
5-hydroxytryptamine receptor 1B also known as the 5-HT1B receptor is a protein that in humans is encoded by the ''HTR1B'' gene. The 5-HT1B receptor is a 5-HT receptor subtype. Tissue distribution and function 5-HT1B receptors are widely distributed throughout the central nervous system with the highest concentrations found in the frontal cortex, basal ganglia, striatum, and the hippocampus. The function of the 5-HT1B receptor differs depending upon its location. In the frontal cortex, it is believed to act as a terminal receptor inhibiting the release of dopamine. In the basal ganglia and the striatum, evidence suggests 5-HT signaling acts on an autoreceptor, inhibiting the release of serotonin and decreasing glutamatergic transmission by reducing miniature excitatory postsynaptic potential (mEPSP) frequency, respectively. In the hippocampus, a recent study has demonstrated that activation of postsynaptic 5-HT1B heteroreceptors produces a facilitation in excitatory synaptic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
5-HT1A Agonists
The serotonin 1A receptor (or 5-HT1A receptor) is a subtype of serotonin receptors, or 5-HT receptors, that binds serotonin, also known as 5-HT, a neurotransmitter. 5-HT1A is expressed in the brain, spleen, and neonatal kidney. It is a G protein-coupled receptor (GPCR), coupled to the Gi protein, and its activation in the brain mediates hyperpolarization and reduction of firing rate of the postsynaptic neuron. In humans, the serotonin 1A receptor is encoded by the HTR1A gene. Distribution The 5-HT1A receptor is the most widespread of all the 5-HT receptors. In the central nervous system, 5-HT1A receptors exist in the cerebral cortex, hippocampus, septum, amygdala, and raphe nucleus in high densities, while low amounts also exist in the basal ganglia and thalamus. The 5-HT1A receptors in the raphe nucleus are largely somatodendritic autoreceptors, whereas those in other areas such as the hippocampus are postsynaptic receptors. Function Neuromodulation 5-HT1A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pip-T
pip-Tryptamine (pip-T), also known as ''N'',''N''-pentamethylenetryptamine, ''N'',''N''-piperidyltryptamine, or 3-(2-piperidinoethyl)indole, is a serotonin receptor modulator and possible serotonergic psychedelic of the tryptamine family. It is the derivative of tryptamine in which the amine has been cyclized into a piperidine ring. Its affinities () for serotonin receptors were 600nM for the serotonin 5-HT1A receptor, 760nM for the serotonin 5-HT2A receptor, and 1,250nM for the serotonin 5-HT2B receptor, whereas other serotonin receptors were not reported. The affinity of pip-T for the serotonin 5-HT2A receptor was about 10-fold lower than that of dimethyltryptamine (DMT) and was about 7-fold lower than that of pyr-tryptamine (pyr-T; ''N'',''N''-pyrrolidinyltryptamine). The drug produces hypolocomotion in rodents. In addition, it induces the head-twitch response, a behavioral proxy of psychedelic effects, in rodents. This was blocked by the serotonin 5-HT2A receptor antago ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
