Target type: molecularfunction
Enables the transmembrane transfer of an ion by a channel that opens when a specific ligand has been bound by the channel complex or one of its constituent parts. [GOC:mtg_transport, ISBN:0815340729]
Ligand-gated monoatomic ion channel activity describes the process by which a specific molecule, known as a ligand, binds to a channel protein, triggering a conformational change that opens the channel and allows the passage of a single type of ion across the cell membrane. These channels are crucial for rapid communication within and between cells, playing roles in diverse biological processes.
Here's a detailed description of the molecular function:
1. **Ligand Binding:** The process initiates with the binding of a specific ligand to a binding site on the channel protein. This binding event is highly selective, ensuring that only the appropriate ligand can activate the channel. The ligand can be a neurotransmitter, a hormone, a drug, or even a change in the membrane potential.
2. **Conformational Change:** Upon ligand binding, the channel protein undergoes a conformational change. This alteration in the protein's three-dimensional structure is essential for opening the channel. The conformational change can be subtle, involving only a small shift in the protein's conformation, or it can be more dramatic, involving a large-scale rearrangement of the protein's structure.
3. **Channel Opening:** The conformational change exposes a pore or channel through the cell membrane, allowing ions to pass through. The pore is typically lined with charged amino acid residues, creating an electrostatic environment that favors the passage of specific ions.
4. **Ion Flow:** The opening of the channel creates a pathway for ions to move across the membrane down their electrochemical gradient. This movement of ions can have a profound impact on the cell's electrical potential, leading to changes in cell excitability, signaling, and other cellular functions.
5. **Desensitization:** After a period of prolonged ligand binding, the channel may become desensitized, reducing its ability to open. This desensitization mechanism helps to prevent overstimulation of the cell and ensures that the channel does not remain permanently open.
6. **Ligand Dissociation:** Eventually, the ligand will dissociate from the binding site, causing the channel to close. The channel returns to its closed conformation, restoring the membrane's ion permeability to its original state.
Examples of Ligand-gated monoatomic ion channels:
- **Nicotinic acetylcholine receptor (nAChR):** Found in neuromuscular junctions and the brain, this channel is activated by the neurotransmitter acetylcholine. It allows the passage of sodium and potassium ions, contributing to muscle contraction and neuronal signaling.
- **GABA receptors:** These channels are activated by the neurotransmitter gamma-aminobutyric acid (GABA). They allow the passage of chloride ions, leading to hyperpolarization of neurons and inhibition of neuronal activity.
- **Glycine receptors:** These channels are activated by the neurotransmitter glycine. They allow the passage of chloride ions, similar to GABA receptors, contributing to inhibition of neuronal activity.
In summary, ligand-gated monoatomic ion channel activity is a highly specific and regulated process that enables rapid and precise communication within and between cells. These channels play crucial roles in numerous biological functions, including neuronal signaling, muscle contraction, and sensory perception. Their dysfunction can lead to various diseases, highlighting their importance for human health.'
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Protein | Definition | Taxonomy |
---|---|---|
Gamma-aminobutyric acid receptor subunit beta-1 | A gamma-aminobutyric acid receptor subunit beta-1 that is encoded in the genome of cow. [OMA:P08220, PRO:DNx] | Bos taurus (cattle) |
Glutamate receptor ionotropic, NMDA 1 | A glutamate receptor ionotropic, NMDA 1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q05586] | Homo sapiens (human) |
P2X purinoceptor 2 | A P2X purinoceptor 2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9UBL9] | Homo sapiens (human) |
Neuronal acetylcholine receptor subunit alpha-4 | A neuronal acetylcholine receptor subunit alpha-4 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P43681] | Homo sapiens (human) |
Neuronal acetylcholine receptor subunit alpha-3 | A neuronal acetylcholine receptor subunit alpha-3 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P32297] | Homo sapiens (human) |
Neuronal acetylcholine receptor subunit beta-4 | A neuronal acetylcholine receptor subunit beta-4 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P30926] | Homo sapiens (human) |
Neuronal acetylcholine receptor subunit alpha-5 | A neuronal acetylcholine receptor subunit alpha-5 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P30532] | Homo sapiens (human) |
Gamma-aminobutyric acid receptor subunit beta-1 | A gamma-aminobutyric acid receptor subunit beta-1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P18505] | Homo sapiens (human) |
Neuronal acetylcholine receptor subunit beta-2 | A neuronal acetylcholine receptor subunit beta-2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P17787] | Homo sapiens (human) |
Acetylcholine receptor subunit beta | An acetylcholine receptor subunit beta that is encoded in the genome of human. [PRO:DNx, UniProtKB:P11230] | Homo sapiens (human) |
Compound | Definition | Classes | Roles |
---|---|---|---|
gamma-aminobutyric acid | gamma-aminobutyric acid : A gamma-amino acid that is butanoic acid with the amino substituent located at C-4. gamma-Aminobutyric Acid: The most common inhibitory neurotransmitter in the central nervous system. | amino acid zwitterion; gamma-amino acid; monocarboxylic acid | human metabolite; neurotransmitter; Saccharomyces cerevisiae metabolite; signalling molecule |
nornicotine | nornicotine: agricultural or horticultural insecticide; RN given refers to (+-)-isomer; structure | ||
bupropion | bupropion : An aromatic ketone that is propiophenone carrying a tert-butylamino group at position 2 and a chloro substituent at position 3 on the phenyl ring. Bupropion: A propiophenone-derived antidepressant and antismoking agent that inhibits the uptake of DOPAMINE. | aromatic ketone; monochlorobenzenes; secondary amino compound | antidepressant; environmental contaminant; xenobiotic |
3-(1-methylpyrrolidin-2-yl)pyridine | 3-(1-methylpyrrolidin-2-yl)pyridine : An N-alkylpyrrolidine that consists of N-methylpyrrolidine bearing a pyridin-3-yl substituent at position 2. | N-alkylpyrrolidine; pyridine alkaloid; pyrrolidine alkaloid | |
pyridoxal phosphate | pyridoxal 5'-phosphate : The monophosphate ester obtained by condensation of phosphoric acid with the primary hydroxy group of pyridoxal. Pyridoxal Phosphate: This is the active form of VITAMIN B 6 serving as a coenzyme for synthesis of amino acids, neurotransmitters (serotonin, norepinephrine), sphingolipids, aminolevulinic acid. During transamination of amino acids, pyridoxal phosphate is transiently converted into pyridoxamine phosphate (PYRIDOXAMINE). | methylpyridines; monohydroxypyridine; pyridinecarbaldehyde; vitamin B6 phosphate | coenzyme; cofactor; EC 2.7.7.7 (DNA-directed DNA polymerase) inhibitor; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
epibatidine | alkaloid | ||
alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid | alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid: An IBOTENIC ACID homolog and glutamate agonist. The compound is the defining agonist for the AMPA subtype of glutamate receptors (RECEPTORS, AMPA). It has been used as a radionuclide imaging agent but is more commonly used as an experimental tool in cell biological studies. | non-proteinogenic alpha-amino acid | |
dimethylphenylpiperazinium iodide | piperazines | ||
phenytoin | imidazolidine-2,4-dione | anticonvulsant; drug allergen; sodium channel blocker; teratogenic agent | |
6,7-dichloroquinoxaline-2,3-dione | quinoxaline derivative | ||
tacrine | tacrine : A member of the class of acridines that is 1,2,3,4-tetrahydroacridine substituted by an amino group at position 9. It is used in the treatment of Alzheimer's disease. Tacrine: A cholinesterase inhibitor that crosses the blood-brain barrier. Tacrine has been used to counter the effects of muscle relaxants, as a respiratory stimulant, and in the treatment of Alzheimer's disease and other central nervous system disorders. | acridines; aromatic amine | EC 3.1.1.7 (acetylcholinesterase) inhibitor |
amantadine | amant: an antiviral compound consisting of an adamantane derivative chemically linked to a water-solube polyanioic matrix; structure in first source | adamantanes; primary aliphatic amine | analgesic; antiparkinson drug; antiviral drug; dopaminergic agent; NMDA receptor antagonist; non-narcotic analgesic |
anabasine | piperidine alkaloid; pyridine alkaloid | nicotinic acetylcholine receptor agonist; plant metabolite; teratogenic agent | |
arcaine | 1,4-diguanidinobutane : A guanidine derivative consisting of butane having guanidino groups at the 1- and 4-positions. arcaine: RN given refers to parent cpd; structure | guanidines | |
carbamylcholine | |||
chlordiazepoxide | chlordiazepoxide : A benzodiazepine that is 3H-1,4-benzodiazepine 4-oxide substituted by a chloro group at position 7, a phenyl group at position 5 and a methylamino group at position 2. Chlordiazepoxide: An anxiolytic benzodiazepine derivative with anticonvulsant, sedative, and amnesic properties. It has also been used in the symptomatic treatment of alcohol withdrawal. | benzodiazepine | |
chlorpromazine | chlorpromazine : A substituted phenothiazine in which the ring nitrogen at position 10 is attached to C-3 of an N,N-dimethylpropanamine moiety. Chlorpromazine: The prototypical phenothiazine antipsychotic drug. Like the other drugs in this class chlorpromazine's antipsychotic actions are thought to be due to long-term adaptation by the brain to blocking DOPAMINE RECEPTORS. Chlorpromazine has several other actions and therapeutic uses, including as an antiemetic and in the treatment of intractable hiccup. | organochlorine compound; phenothiazines; tertiary amine | anticoronaviral agent; antiemetic; dopaminergic antagonist; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; phenothiazine antipsychotic drug |
clofibric acid | clofibric acid : A monocarboxylic acid that is isobutyric acid substituted at position 2 by a p-chlorophenoxy group. It is a metabolite of the drug clofibrate. Clofibric Acid: An antilipemic agent that is the biologically active metabolite of CLOFIBRATE. | aromatic ether; monocarboxylic acid; monochlorobenzenes | anticholesteremic drug; antilipemic drug; antineoplastic agent; herbicide; marine xenobiotic metabolite; PPARalpha agonist |
clonazepam | clonazepam : 1,3-Dihydro-2H-1,4-benzodiazepin-2-one in which the hydrogens at positions 5 and 7 are substituted by 2-chlorophenyl and nitro groups, respectively. It is used in the treatment of all types of epilepsy and seizures, as well as myoclonus and associated abnormal movements, and panic disorders. However, its use can be limited by the development of tolerance and by sedation. Clonazepam: An anticonvulsant used for several types of seizures, including myotonic or atonic seizures, photosensitive epilepsy, and absence seizures, although tolerance may develop. It is seldom effective in generalized tonic-clonic or partial seizures. The mechanism of action appears to involve the enhancement of GAMMA-AMINOBUTYRIC ACID receptor responses. | 1,4-benzodiazepinone; monochlorobenzenes | anticonvulsant; anxiolytic drug; GABA modulator |
decamethonium | decamethonium : A quaternary ammonium ion that is a depolarising muscle relaxant whose structure comprises a decane-1,10-diamine core in which each amino group carries three methyl substituents. decamethonium: RN given refers to parent cpd | quaternary ammonium ion | muscle relaxant; nicotinic acetylcholine receptor agonist |
nordazepam | nordazepam : A 1,4-benzodiazepinone having phenyl and chloro substituents at positions 5 and 7 respectively; it has anticonvulsant, anxiolytic, muscle relaxant and sedative properties but is used primarily in the treatment of anxiety. Nordazepam: An intermediate in the metabolism of DIAZEPAM to OXAZEPAM. It may have actions similar to those of diazepam. | 1,4-benzodiazepinone; organochlorine compound | anticonvulsant; anxiolytic drug; GABA modulator; human metabolite; sedative |
racemethorphan | 6-methoxy-11-methyl-1,3,4,9,10,10a-hexahydro-2H-10,4a-(epiminoethano)phenanthrene : An organic heterotetracyclic compound that is 1,3,4,9,10,10a-hexahydro-2H-10,4a-(epiminoethano)phenanthrene which is substituted by a methoxy group at position 6 and a methyl group at position 11. | aromatic ether; morphinane alkaloid; morphinane-like compound; organic heterotetracyclic compound | |
diazepam | diazepam : A 1,4-benzodiazepinone that is 1,3-dihydro-2H-1,4-benzodiazepin-2-one substituted by a chloro group at position 7, a methyl group at position 1 and a phenyl group at position 5. Diazepam: A benzodiazepine with anticonvulsant, anxiolytic, sedative, muscle relaxant, and amnesic properties and a long duration of action. Its actions are mediated by enhancement of GAMMA-AMINOBUTYRIC ACID activity. | 1,4-benzodiazepinone; organochlorine compound | anticonvulsant; anxiolytic drug; environmental contaminant; sedative; xenobiotic |
fipronil | 5-amino-1-[2,6-dichloro-4-(trifluoromethyl)phenyl]-4-[(trifluoromethyl)sulfinyl]-1H-pyrazole-3-carbonitrile : A member of the class of pyrazoles that is 1H-pyrazole that is substituted at positions 1, 3, 4, and 5 by 2,6-dichloro-4-(trifluoromethyl)phenyl, cyano, (trifluoromethyl)sulfinyl, and amino groups, respectively. fipronil : A racemate comprising equimolar amounts of (R)- and (S)-fipronil. fipronil: has low mammalian toxicity; structure given in first source | (trifluoromethyl)benzenes; dichlorobenzene; nitrile; primary amino compound; pyrazoles; sulfoxide | |
flumazenil | flumazenil : An organic heterotricyclic compound that is 5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepine which is substituted at positions 3, 5, 6, and 8 by ethoxycarbonyl, methyl, oxo, and fluoro groups, respectively. It is used as an antidote to benzodiazepine overdose. Flumazenil: A potent benzodiazepine receptor antagonist. Since it reverses the sedative and other actions of benzodiazepines, it has been suggested as an antidote to benzodiazepine overdoses. | ethyl ester; imidazobenzodiazepine; organofluorine compound | antidote to benzodiazepine poisoning; GABA antagonist |
flunitrazepam | flunitrazepam : A 1,4-benzodiazepinone that is nitrazepam substituted by a methyl group at position 1 and by a fluoro group at position 2'. It is a potent hypnotic, sedative, and amnestic drug used to treat chronic insomnia. Flunitrazepam: A benzodiazepine with pharmacologic actions similar to those of DIAZEPAM that can cause ANTEROGRADE AMNESIA. Some reports indicate that it is used as a date rape drug and suggest that it may precipitate violent behavior. The United States Government has banned the importation of this drug. | 1,4-benzodiazepinone; C-nitro compound; monofluorobenzenes | anxiolytic drug; GABAA receptor agonist; sedative |
fluoxetine | fluoxetine : A racemate comprising equimolar amounts of (R)- and (S)-fluoxetine. A selective serotonin reuptake inhibitor (SSRI), it is used (generally as the hydrochloride salt) for the treatment of depression (and the depressive phase of bipolar disorder), bullimia nervosa, and obsessive-compulsive disorder. Fluoxetine: The first highly specific serotonin uptake inhibitor. It is used as an antidepressant and often has a more acceptable side-effects profile than traditional antidepressants. N-methyl-3-phenyl-3-[4-(trifluoromethyl)phenoxy]propan-1-amine : An aromatic ether consisting of 4-trifluoromethylphenol in which the hydrogen of the phenolic hydroxy group is replaced by a 3-(methylamino)-1-phenylpropyl group. | (trifluoromethyl)benzenes; aromatic ether; secondary amino compound | |
granisetron | aromatic amide; indazoles | ||
hydroxyurea | one-carbon compound; ureas | antimetabolite; antimitotic; antineoplastic agent; DNA synthesis inhibitor; EC 1.17.4.1 (ribonucleoside-diphosphate reductase) inhibitor; genotoxin; immunomodulator; radical scavenger; teratogenic agent | |
ifenprodil | ifenprodil: NMDA receptor antagonist | piperidines | |
isoflurane | Isoflurane: A stable, non-explosive inhalation anesthetic, relatively free from significant side effects. | organofluorine compound | inhalation anaesthetic |
isoguvacine | isoguvacine: A GABA agonist; RN given refers to parent cpd; structure | tetrahydropyridine | |
4-piperidinecarboxylic acid | 4-piperidinecarboxylic acid: structure in first source | ||
ketamine | ketamine : A member of the class of cyclohexanones in which one of the hydrogens at position 2 is substituted by a 2-chlorophenyl group, while the other is substituted by a methylamino group. Ketamine: A cyclohexanone derivative used for induction of anesthesia. Its mechanism of action is not well understood, but ketamine can block NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE) and may interact with sigma receptors. | cyclohexanones; monochlorobenzenes; secondary amino compound | analgesic; environmental contaminant; intravenous anaesthetic; neurotoxin; NMDA receptor antagonist; xenobiotic |
kynurenic acid | kynurenic acid : A quinolinemonocarboxylic acid that is quinoline-2-carboxylic acid substituted by a hydroxy group at C-4. Kynurenic Acid: A broad-spectrum excitatory amino acid antagonist used as a research tool. | monohydroxyquinoline; quinolinemonocarboxylic acid | G-protein-coupled receptor agonist; human metabolite; neuroprotective agent; nicotinic antagonist; NMDA receptor antagonist; Saccharomyces cerevisiae metabolite |
mecamylamine | Mecamylamine: A nicotinic antagonist that is well absorbed from the gastrointestinal tract and crosses the blood-brain barrier. Mecamylamine has been used as a ganglionic blocker in treating hypertension, but, like most ganglionic blockers, is more often used now as a research tool. | primary aliphatic amine | |
memantine | adamantanes; primary aliphatic amine | antidepressant; antiparkinson drug; dopaminergic agent; neuroprotective agent; NMDA receptor antagonist | |
methoctramine | aromatic ether; tetramine | muscarinic antagonist | |
n-methylcarbamylcholine | N-methylcarbamylcholine: structure given in first source | ||
muscimol | muscimol : A member of the class of isoxazoles that is 1,2-oxazol-3(2H)-one substituted by an aminomethyl group at position 5. It has been isolated from mushrooms of the genus Amanita. Muscimol: A neurotoxic isoxazole isolated from species of AMANITA. It is obtained by decarboxylation of IBOTENIC ACID. Muscimol is a potent agonist of GABA-A RECEPTORS and is used mainly as an experimental tool in animal and tissue studies. | alkaloid; isoxazoles; primary amino compound | fungal metabolite; GABA agonist; oneirogen; psychotropic drug |
nitrazepam | nitrazepam : A 1,4-benzodiazepinone that is 1,3-dihydro-2H-1,4-benzodiazepin-2-one which is substituted at positions 5 and 7 by phenyl and nitro groups, respectively. It is used as a hypnotic for the short-term management of insomnia and for the treatment of epileptic spasms in infants (West's syndrome). Nitrazepam: A benzodiazepine derivative used as an anticonvulsant and hypnotic. | 1,4-benzodiazepinone; C-nitro compound | anticonvulsant; antispasmodic drug; drug metabolite; GABA modulator; sedative |
cm 7116 | norflutoprazepam: structure | benzodiazepine | |
ondansetron | Ondansetron: A competitive serotonin type 3 receptor antagonist. It is effective in the treatment of nausea and vomiting caused by cytotoxic chemotherapy drugs, including cisplatin, and has reported anxiolytic and neuroleptic properties. | carbazoles | |
orphenadrine | orphenadrine : A tertiary amino compound which is the phenyl-o-tolylmethyl ether of 2-(dimethylamino)ethanol. Orphenadrine: A muscarinic antagonist used to treat drug-induced parkinsonism and to relieve pain from muscle spasm. | ether; tertiary amino compound | antidyskinesia agent; antiparkinson drug; H1-receptor antagonist; muscarinic antagonist; muscle relaxant; NMDA receptor antagonist; parasympatholytic |
pentamidine | pentamidine : A diether consisting of pentane-1,5-diol in which both hydroxyl hydrogens have been replaced by 4-amidinophenyl groups. A trypanocidal drug that is used for treatment of cutaneous leishmaniasis and Chagas disease. Pentamidine: Antiprotozoal agent effective in trypanosomiasis, leishmaniasis, and some fungal infections; used in treatment of PNEUMOCYSTIS pneumonia in HIV-infected patients. It may cause diabetes mellitus, central nervous system damage, and other toxic effects. | aromatic ether; carboxamidine; diether | anti-inflammatory agent; antifungal agent; calmodulin antagonist; chemokine receptor 5 antagonist; EC 2.3.1.48 (histone acetyltransferase) inhibitor; NMDA receptor antagonist; S100 calcium-binding protein B inhibitor; trypanocidal drug; xenobiotic |
pyridoxal phosphate-6-azophenyl-2',4'-disulfonic acid | 5'-phosphopyridoxal-6-azobenzene-2,4-disulfonic acid : An arenesulfonic acid that is pyridoxal 5'-phosphate carrying an additional 2,4-disulfophenylazo substituent at position 6. pyridoxal phosphate-6-azophenyl-2',4'-disulfonic acid: a novel antagonist that selectively blocks P2 purinoceptor receptors; a useful tool to study co-transmission in tissues when ATP and coexisting neurotransmitters act in concert | arenesulfonic acid; azobenzenes; methylpyridines; monohydroxypyridine; organic phosphate; pyridinecarbaldehyde | purinergic receptor P2X antagonist |
procyclidine | procyclidine : A tertiary alcohol that consists of propan-1-ol substituted by a cyclohexyl and a phenyl group at position 1 and a pyrrolidin-1-yl group at position 3. Procyclidine: A muscarinic antagonist that crosses the blood-brain barrier and is used in the treatment of drug-induced extrapyramidal disorders and in parkinsonism. | pyrrolidines; tertiary alcohol | antidyskinesia agent; antiparkinson drug; muscarinic antagonist |
propofol | propofol : A phenol resulting from the formal substitution of the hydrogen at the 2 position of 1,3-diisopropylbenzene by a hydroxy group. Propofol: An intravenous anesthetic agent which has the advantage of a very rapid onset after infusion or bolus injection plus a very short recovery period of a couple of minutes. (From Smith and Reynard, Textbook of Pharmacology, 1992, 1st ed, p206). Propofol has been used as ANTICONVULSANTS and ANTIEMETICS. | phenols | anticonvulsant; antiemetic; intravenous anaesthetic; radical scavenger; sedative |
temazepam | Temazepam: A benzodiazepine that acts as a GAMMA-AMINOBUTYRIC ACID modulator and anti-anxiety agent. | benzodiazepine | |
tilorone | tilorone : A member of the class of fluoren-9-ones that is 9H-fluoren-9-one which is substituted by a 2-(diethylamino)ethoxy group at positions 2 and 7. It is an interferon inducer and a selective alpha7 nicotinic acetylcholine receptor (alpha7 nAChR) agonist. Its hydrochloride salt is used as an antiviral drug. Tilorone: An antiviral agent used as its hydrochloride. It is the first recognized synthetic, low-molecular-weight compound that is an orally active interferon inducer, and is also reported to have antineoplastic and anti-inflammatory actions. | aromatic ether; diether; fluoren-9-ones; tertiary amino compound | anti-inflammatory agent; antineoplastic agent; antiviral agent; interferon inducer; nicotinic acetylcholine receptor agonist |
(1,2,5,6-tetrahydropyridin-4-yl)methylphosphinic acid | (1,2,5,6-tetrahydropyridin-4-yl)methylphosphinic acid: a GABA-C receptor antagonist; structure in first source | ||
trigonelline | N-methylnicotinate : An iminium betaine that is the conjugate base of N-methylnicotinic acid, arising from deprotonation of the carboxy group. N-methylnicotinic acid : A pyridinium ion consisting of nicotinic acid having a methyl substituent on the pyridine nitrogen. trigonelline: in hydra among other organisms; RN given refers to hydroxide inner salt; structure | alkaloid; iminium betaine | food component; human urinary metabolite; plant metabolite |
zolpidem | zolpidem : An imidazo[1,2-a]pyridine compound having a 4-tolyl group at the 2-position, an N,N-dimethylcarbamoylmethyl group at the 3-position and a methyl substituent at the 6-position. Zolpidem: An imidazopyridine derivative and short-acting GABA-A receptor agonist that is used for the treatment of INSOMNIA. | imidazopyridine | central nervous system depressant; GABA agonist; sedative |
triiodothyronine | 3,3',5-triiodo-L-thyronine : An iodothyronine compound having iodo substituents at the 3-, 3'- and 5-positions. Although some is produced in the thyroid, most of the 3,3',5-triiodo-L-thyronine in the body is generated by mono-deiodination of L-thyroxine in the peripheral tissues. Its metabolic activity is about 3 to 5 times that of L-thyroxine. The sodium salt is used in the treatment of hypothyroidism. Triiodothyronine: A T3 thyroid hormone normally synthesized and secreted by the thyroid gland in much smaller quantities than thyroxine (T4). Most T3 is derived from peripheral monodeiodination of T4 at the 5' position of the outer ring of the iodothyronine nucleus. The hormone finally delivered and used by the tissues is mainly T3. | 2-halophenol; amino acid zwitterion; iodophenol; iodothyronine | human metabolite; mouse metabolite; thyroid hormone |
adenosine diphosphate | Adenosine Diphosphate: Adenosine 5'-(trihydrogen diphosphate). An adenine nucleotide containing two phosphate groups esterified to the sugar moiety at the 5'-position. | adenosine 5'-phosphate; purine ribonucleoside 5'-diphosphate | fundamental metabolite; human metabolite |
tetramethylammonium | tetramethylammonium : The simplest quaternary ammonium cation, comprising a central nitrogen linked to four methyl groups. tetramethylammonium: RN given refers to parent cpd | quaternary ammonium ion | |
phencyclidine | phencyclidine : A member of the class of piperidines that is piperidine in which the nitrogen is substituted with a 1-phenylcyclohexyl group. Formerly used as an anaesthetic agent, it exhibits both hallucinogenic and neurotoxic effects. Phencyclidine: A hallucinogen formerly used as a veterinary anesthetic, and briefly as a general anesthetic for humans. Phencyclidine is similar to KETAMINE in structure and in many of its effects. Like ketamine, it can produce a dissociative state. It exerts its pharmacological action through inhibition of NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE). As a drug of abuse, it is known as PCP and Angel Dust. | benzenes; piperidines | anaesthetic; neurotoxin; NMDA receptor antagonist; psychotropic drug |
indopan | alpha-methyltryptamine : A tryptamine derivative having a methyl substituent at the alpha-position. indopan: RN given refers to parent cpd without isomeric designation | tryptamines | |
boldine | aporphine alkaloid | ||
cytisine | alkaloid; bridged compound; lactam; organic heterotricyclic compound; secondary amino compound | nicotinic acetylcholine receptor agonist; phytotoxin; plant metabolite | |
bicuculline | bicuculline : A benzylisoquinoline alkaloid that is 6-methyl-5,6,7,8-tetrahydro[1,3]dioxolo[4,5-g]isoquinoline which is substituted at the 5-pro-S position by a (6R)-8-oxo-6,8-dihydrofuro[3,4-e][1,3]benzodioxol-6-yl group. A light-sensitive competitive antagonist of GABAA receptors. It was originally identified in 1932 in plant alkaloid extracts and has been isolated from Dicentra cucullaria, Adlumia fungosa, Fumariaceae, and several Corydalis species. Bicuculline: An isoquinoline alkaloid obtained from Dicentra cucullaria and other plants. It is a competitive antagonist for GABA-A receptors. | benzylisoquinoline alkaloid; isoquinoline alkaloid; isoquinolines | agrochemical; central nervous system stimulant; GABA-gated chloride channel antagonist; GABAA receptor antagonist; neurotoxin |
flavone | flavone : The simplest member of the class of flavones that consists of 4H-chromen-4-one bearing a phenyl substituent at position 2. flavone: RN given refers to unlabeled cpd; structure given in first source | flavones | metabolite; nematicide |
anatabine | anatabine: alkaloid found in tobacco; structure | bipyridines | |
chlordesmethyldiazepam | benzodiazepine | ||
6-aminonicotinic acid | 6-aminonicotinic acid : An aminonicotinic acid in which the amino group is situated at position 6 of the pyridine ring. 6-aminonicotinic acid: RN given refers to parent cpd | aminonicotinic acid; aminopyridine; aromatic amine | metabolite |
anabaseine | anabaseine: structure given in first source | bipyridines | |
diadenosine tetraphosphate | P(1),P(4)-bis(5'-adenosyl) tetraphosphate : A diadenosyl tetraphosphate compound having the two 5'-adenosyl residues attached at the P(1)- and P(4)-positions. | diadenosyl tetraphosphate | Escherichia coli metabolite; mouse metabolite |
ormetoprim | ormetoprim: proposed chemotherapeutic agent; minor descriptor (75-84); on-line & Index Medicus search PYRIMIDINES (75-84) | dimethoxybenzene | |
2,3-dihydroxyquinoxaline | 2,3-dihydroxyquinoxaline: fluorescent oxalic acid deriv. | ||
pregnanolone | 3alpha-hydroxy-5beta-pregnan-20-one : The 3alpha-stereoisomer of 3-hydroxy-5beta-pregnan-20-one. Pregnanolone: A pregnane found in the urine of pregnant women and sows. It has anesthetic, hypnotic, and sedative properties. | 3-hydroxy-5beta-pregnan-20-one; 3alpha-hydroxy steroid | human metabolite; intravenous anaesthetic; sedative |
halazepam | halazepam: structure | organic molecular entity | |
dihydro-beta-erythroidine | dihydro-beta-erythroidine : An organic heterotetracyclic compound resulting from the partial hydrogenation of the 1,3-diene moiety of beta-erythroidine to give the corresponding 2-ene. Dihydro-beta-Erythroidine: Dihydro analog of beta-erythroidine, which is isolated from the seeds and other plant parts of Erythrina sp. Leguminosae. It is an alkaloid with curarimimetic properties. | delta-lactone; organic heterotetracyclic compound; tertiary amino compound | nicotinic antagonist |
glutamic acid | glutamic acid : An alpha-amino acid that is glutaric acid bearing a single amino substituent at position 2. Glutamic Acid: A non-essential amino acid naturally occurring in the L-form. Glutamic acid is the most common excitatory neurotransmitter in the CENTRAL NERVOUS SYSTEM. | glutamic acid; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid | Escherichia coli metabolite; ferroptosis inducer; micronutrient; mouse metabolite; neurotransmitter; nutraceutical |
bezafibrate | aromatic ether; monocarboxylic acid; monocarboxylic acid amide; monochlorobenzenes | antilipemic drug; environmental contaminant; geroprotector; xenobiotic | |
progabide | progabide: GABA agonist; structure | diarylmethane | |
eliprodil | 1-(4-chlorophenyl)-2-[4-(4-fluorobenzyl)piperidin-1-yl]ethanol : A member of the class of piperidines that is piperidine substituted by a 2-(4-chlorophenyl)-2-hydroxyethyl group at position 1 and by a 4-fluorobenzyl group at position 4. | monochlorobenzenes; monofluorobenzenes; piperidines; secondary alcohol; tertiary amino compound | |
duloxetine | duloxetine | ||
fenofibric acid | fenofibric acid : A monocarboxylic acid that is 2-methylpropanoic acid substituted by a 4-(4-chlorobenzoyl)phenoxy group at position 2. It is a metabolite of the drug fenofibrate. fenofibric acid: RN given refers to parent cpd without isomeric designation; structure | aromatic ketone; chlorobenzophenone; monocarboxylic acid | drug metabolite; marine xenobiotic metabolite |
norharman | beta-carboline : The parent compound of the beta-carbolines, a tricyclic structure comprising an indole ring system ortho- fused to C-3 and C-4 of a pyridine ring. norharman: RN given refers to parent cpd | beta-carbolines; mancude organic heterotricyclic parent | fungal metabolite; marine metabolite |
baicalin | dihydroxyflavone; glucosiduronic acid; glycosyloxyflavone; monosaccharide derivative | antiatherosclerotic agent; antibacterial agent; anticoronaviral agent; antineoplastic agent; antioxidant; cardioprotective agent; EC 2.7.7.48 (RNA-directed RNA polymerase) inhibitor; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; ferroptosis inhibitor; neuroprotective agent; non-steroidal anti-inflammatory drug; plant metabolite; prodrug | |
25-hydroxycholesterol | 25-hydroxy steroid; oxysterol | human metabolite | |
budipine | budipine: RN given refers to parent cpd; structure in Negwer, 5th ed, #6541 | diarylmethane | |
honokiol | biphenyls | ||
polygodial | aldehyde | ||
2-aminonicotinic acid | 2-aminonicotinic acid : An aminonicotinic acid in which the amino group is situated at position 2 of the pyridine ring. 2-aminonicotinic acid: structure in first source aminonicotinic acid : An aromatic amino acid that is nicotinic acid in which one of the hydrogens attached to the pyridine ring is replaced by an amino group. A 'closed class'. | aminonicotinic acid; aminopyridine | metabolite |
n-desmethylflunitrazepam | |||
rosiglitazone | aminopyridine; thiazolidinediones | EC 6.2.1.3 (long-chain-fatty-acid--CoA ligase) inhibitor; ferroptosis inhibitor; insulin-sensitizing drug | |
7-aminonitrazepam | 7-aminonitrazepam: urinary metabolite of nitrazepam | benzodiazepine | |
6,7-dichloroquinoxaline-2,3-dione | |||
N-methyl-N-(3-pyridylmethyl)amine | aralkylamine | ||
nicotine | (S)-nicotine : A 3-(1-methylpyrrolidin-2-yl)pyridine in which the chiral centre has S-configuration. The naturally occurring and most active enantiomer of nicotine, isolated from Nicotiana tabacum. | 3-(1-methylpyrrolidin-2-yl)pyridine | anxiolytic drug; biomarker; immunomodulator; mitogen; neurotoxin; nicotinic acetylcholine receptor agonist; peripheral nervous system drug; phytogenic insecticide; plant metabolite; psychotropic drug; teratogenic agent; xenobiotic |
ro 20-1815 | 7-aminoflunitrazepam: flunitrazepam metabolite; structure given in first source | benzodiazepine | |
brexanolone | brexanolone : A 3-hydroxy-5alpha-pregnan-20-one in which the hydroxy group at position 3 has alpha-configuration. It is a metabolite of the sex hormone progesterone and used for the treatment of postpartum depression in women. brexanolone: a mixture of allopregnanolone and sulfobutylether‐beta‐cyclodextrin for treatment of postpartum depression | 3-hydroxy-5alpha-pregnan-20-one | antidepressant; GABA modulator; human metabolite; intravenous anaesthetic; sedative |
imidazoleacetic acid | imidazol-4-ylacetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens has been replaced by an imidazol-4-yl group. imidazol-5-ylacetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens has been replaced by an imidazol-5-yl group. imidazoleacetic acid: RN given refers to cpd without specific location of acetic acid attachment identified; structure | imidazoles; monocarboxylic acid | metabolite; mouse metabolite |
1,2,3,4-tetrahydro-beta-carboline-3-carboxylic acid | 1,2,3,4-tetrahydro-beta-carboline-3-carboxylic acid : A member of the class of beta-carbolines that is 1,2,3,4-tetrahydro-beta-carboline substituted at position 3 by a carboxy group. 1,2,3,4-tetrahydro-beta-carboline-3-carboxylic acid: structure given in first source; RN given refers to cpd without isomeric designation | alpha-amino acid; aromatic amino acid; beta-carboline alkaloid | human urinary metabolite; human xenobiotic metabolite; plant metabolite; rat metabolite |
2,5-dihydro-2-(4-methoxyphenyl)-3h-pyrazolo(4,3-c)quinolin-3-one | |||
lobeline | (-)-lobeline : An optically active piperidine alkaloid having a 2-oxo-2-phenylethyl substituent at the 2-position and a 2-hydroxy-2-phenylethyl group at the 6-position. | aromatic ketone; piperidine alkaloid; tertiary amine | nicotinic acetylcholine receptor agonist |
tetrahydrodeoxycorticosterone | tetrahydrodeoxycorticosterone: RN given refers to (3alpha,5beta)-isomer | 21-hydroxy steroid | |
alphaxalone | alphaxalone: RN given refers to (3alpha,5alpha)-isomer; structure | corticosteroid hormone | |
beta-carboline-3-carboxylic acid ethyl ester | beta-carboline-3-carboxylic acid ethyl ester: isolated from brain tissue & urine; extremely potent displacer of diazepam from brain benzodiazepam receptors; structure in first source | beta-carbolines | |
beta-carboline-3-carboxylic acid methyl ester | beta-carboline-3-carboxylic acid methyl ester: structure given in first source | beta-carbolines | |
3-methyl-5-(1-methyl-2-pyrrolidinyl)isoxazole | 3-methyl-5-(1-methyl-2-pyrrolidinyl)isoxazole: structure in first source | ||
24-hydroxycholesterol | (24S)-24-hydroxycholesterol : A 24-hydroxycholesterol that has S configuration at position 24. It is the major metabolic breakdown product of cholesterol in the brain. | 24-hydroxycholesterol | biomarker; human blood serum metabolite; mouse metabolite |
propyl beta-carboline-3-carboxylate | propyl beta-carboline-3-carboxylate: binds specifically to brain benzodiazepine receptors | beta-carbolines | |
3-ethoxy-beta-carboline | 3-ethoxy-beta-carboline: high affinity benzodiazepine receptor ligand with partial inverse agonist properties | ||
tert-butyl beta-carboline-3-carboxylate | tert-butyl beta-carboline-3-carboxylate: benzodiazepine receptor antagonist | ||
3',6-dinitroflavone | |||
ly 293558 | tezampanel: structure given in first source; an AMPA receptor antagonist | ||
n-butyl beta-carboline-3-carboxylate | N-butyl beta-carboline-3-carboxylate: benzodiazepine binding inhibitor from bovine cerebral cortex | beta-carbolines | |
cgp 36742 | (3-aminopropyl)(n-butyl)phosphinic acid: interacts preferably with GABA-B RECEPTORS (IC50=38 μM) and GABA-C receptors (IC50=62 μM) over GABA-A RECEPTORS (IC50=508 μM) | ||
pitrazepin | pitrazepin: effects are not tissue specific; induced a bursting discharge pattern in cultures derived from hippocampus & hypothalamus; structure given in first source | N-arylpiperazine | |
besonprodil | besonprodil: CI-1041 is also known as PD19680; NMDA receptor antagonist for treatment of Parkinson's disease; structure in first source | ||
philanthotoxin 343 | philanthotoxin 343: structure given in first source (see article's footnote); identical to philanthotoxin 433 except that the number of methylene groups between the respective amine moieties is 3,4,3 instead of 4,3,3 | N-acyl-amino acid | |
miltirone | miltirone: from Salvis miltiorrhiza Bunge; central benzodiazepine receptor ligand; structure given in first source | abietane diterpenoid | |
erysodine | erysodine : An erythrina alkaloid with formula C18H21NO3 isolated from several erythrina plant species. It is a competitive antagonist of nicotinic acetylcholine receptors and exhibits antiparasitic and insecticidal activities. erysodine: structure given in first source | aromatic ether; diether; Erythrina alkaloid; organic heterotetracyclic compound; phenols | antiparasitic agent; nicotinic antagonist; phytogenic insecticide |
varenicline | varenicline : An organic heterotetracyclic compound that acts as a partial agonist for nicotinic cholinergic receptors and is used (in the form of its tartate salt) as an aid to giving up smoking. Varenicline: A benzazepine derivative that functions as an ALPHA4-BETA2 NICOTINIC RECEPTOR partial agonist. It is used for SMOKING CESSATION. | ||
carboline-3-carboxylic acid | |||
pozanicline | |||
dizocilpine | secondary amino compound; tetracyclic antidepressant | anaesthetic; anticonvulsant; neuroprotective agent; nicotinic antagonist; NMDA receptor antagonist | |
memantine hydrochloride | hydrochloride | antidepressant; antiparkinson drug; dopaminergic agent; neuroprotective agent; NMDA receptor antagonist | |
esketamine | esketamine : The S- (more active) enantiomer of ketamine. | ketamine | analgesic; intravenous anaesthetic; NMDA receptor antagonist |
7-aminoclonazepam | benzodiazepine | ||
cns 5161 | CNS 5161: structure in first source | ||
ro 5-3438 | Ro 5-3438: structure | ||
cp 101,606 | traxoprodil mesylate: a selective NMDA antagonist; structure given in first source | ||
anatoxin a | anatoxin a: found in Anabaena; was indexed to cyanobacterial toxin (MARINE TOXINS) 1978-2006; also see anatoxin-a(s) | tropane alkaloid | |
cocaine | cocaine : A tropane alkaloid obtained from leaves of the South American shrub Erythroxylon coca. Cocaine: An alkaloid ester extracted from the leaves of plants including coca. It is a local anesthetic and vasoconstrictor and is clinically used for that purpose, particularly in the eye, ear, nose, and throat. It also has powerful central nervous system effects similar to the amphetamines and is a drug of abuse. Cocaine, like amphetamines, acts by multiple mechanisms on brain catecholaminergic neurons; the mechanism of its reinforcing effects is thought to involve inhibition of dopamine uptake. | benzoate ester; methyl ester; tertiary amino compound; tropane alkaloid | adrenergic uptake inhibitor; central nervous system stimulant; dopamine uptake inhibitor; environmental contaminant; local anaesthetic; mouse metabolite; plant metabolite; serotonin uptake inhibitor; sodium channel blocker; sympathomimetic agent; vasoconstrictor agent; xenobiotic |
6-bromoflavone | 6-bromoflavone: a high affinity ligand for the central benzodiazepine receptors; structure given in first source | ||
n-desmethylflunitrazepam | N-desmethylflunitrazepam: metabolite of flunitrazepam | ||
ro 05-4082 | ID 690: methyl deriv of clonazepam; structure | ||
deformylflustrabromine | deformylflustrabromine: has antineoplastic activity; isolated from Flustra folicea; structure in first source | tryptamines | |
tropacocaine | tropacocaine: RN given refers to (exo)-isomer; structure | ||
tropisetron | tropisetron : An indolyl carboxylate ester obtained by formal condensation of the carboxy group of indole-3-carboxylic acid with the hydroxy group of tropine. Tropisetron: An indole derivative and 5-HT3 RECEPTOR antagonist that is used for the prevention of nausea and vomiting. | indolyl carboxylic acid | |
l 364373 | benzodiazepine | ||
lobeline | |||
epibatidine | |||
1-(1h-indol-3-ylcarbonyl)-n-(4-methoxybenzyl)formamide | 1-(1H-Indol-3-ylcarbonyl)-N-(4-methoxybenzyl)formamide: structure in first source | ||
8-azidoadenosine 5'-triphosphate | |||
thiopental | thiopental : A barbiturate, the structure of which is that of 2-thiobarbituric acid substituted at C-5 by ethyl and sec-pentyl groups. Thiopental: A barbiturate that is administered intravenously for the induction of general anesthesia or for the production of complete anesthesia of short duration. | barbiturates | anticonvulsant; drug allergen; environmental contaminant; intravenous anaesthetic; sedative; xenobiotic |
hmr 3647 | |||
2-[(2-ethoxyphenoxy)-phenylmethyl]morpholine | aromatic ether | ||
meclonazepam | |||
dexoxadrol | |||
anatoxin a | anatoxin I: found mainly in ANABAENA; was indexed to cyanobacterial toxin (MARINE TOXINS). isolated from many salt-tolerant freshwater cyanobacteria | ||
7-chloro-thiokynurenate | 7-chlorothiokynurenic acid: glycine site antagonist of NMDA receptor | ||
6-thioinosine-5'-triphosphate | organic molecule | ||
isothaz | isothaz: muscimol antagonist | ||
abt 594 | |||
n-(indol-3-ylglyoxylyl)benzylamine | N-(indol-3-ylglyoxylyl)benzylamine: structure given in first source | ||
6-bromo-3'-nitroflavone | 6-bromo-3'-nitroflavone: a synthetic flavonoid with high affinity for the benzodiazepine receptors | ||
5-(6-chloro-3-pyridinyl)-9-azabicyclo[4.2.1]non-4-ene | azepine | ||
3-propoxy-beta-carboline | 3-propoxy-beta-carboline: structure in first source | ||
tcn 201 | |||
imd 0354 | N-(3,5-bis(trifluoromethyl)phenyl)-5-chloro-2-hydroxybenzamide: a cardioprotective agent that inhibits IkappaB kinase beta (IKKbeta); structure in first source | benzamides | |
apigenin | Chamomile: Common name for several daisy-like plants (MATRICARIA; TRIPLEUROSPERMUM; ANTHEMIS; CHAMAEMELUM) native to Europe and Western Asia, now naturalized in the United States and Australia. | trihydroxyflavone | antineoplastic agent; metabolite |
harman | harman : An indole alkaloid fundamental parent with a structure of 9H-beta-carboline carrying a methyl substituent at C-1. It has been isolated from the bark of Sickingia rubra, Symplocus racemosa, Passiflora incarnata, Peganum harmala, Banisteriopsis caapi and Tribulus terrestris, as well as from tobacco smoke. It is a specific, reversible inhibitor of monoamine oxidase A. harman: a beta-carboline; RN given refers to parent cpd; structure | harmala alkaloid; indole alkaloid; indole alkaloid fundamental parent | anti-HIV agent; EC 1.4.3.4 (monoamine oxidase) inhibitor; plant metabolite |
amentoflavone | biflavonoid; hydroxyflavone; ring assembly | angiogenesis inhibitor; antiviral agent; cathepsin B inhibitor; P450 inhibitor; plant metabolite | |
baicalein | trihydroxyflavone | angiogenesis inhibitor; anti-inflammatory agent; antibacterial agent; anticoronaviral agent; antifungal agent; antineoplastic agent; antioxidant; apoptosis inducer; EC 1.13.11.31 (arachidonate 12-lipoxygenase) inhibitor; EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; EC 3.4.22.69 (SARS coronavirus main proteinase) inhibitor; EC 4.1.1.17 (ornithine decarboxylase) inhibitor; ferroptosis inhibitor; geroprotector; hormone antagonist; plant metabolite; prostaglandin antagonist; radical scavenger | |
chrysin | chrysin : A dihydroxyflavone in which the two hydroxy groups are located at positions 5 and 7. | 7-hydroxyflavonol; dihydroxyflavone | anti-inflammatory agent; antineoplastic agent; antioxidant; EC 2.7.11.18 (myosin-light-chain kinase) inhibitor; hepatoprotective agent; plant metabolite |
hispidulin | hispidulin : A monomethoxyflavone that is scutellarein methylated at position 6. | monomethoxyflavone; trihydroxyflavone | anti-inflammatory agent; anticonvulsant; antineoplastic agent; antioxidant; apoptosis inducer; plant metabolite |
scutellarein | scutellarein : Flavone substituted with hydroxy groups at C-4', -5, -6 and -7. scutellarein: aglycone of scutellarin from Scutellaria baicalensis; carthamidin is 2S isomer of scutellarein; do not confuse with isoscutellarein and/or isocarthamidin which are respective regioisomers, or with the scutelarin protein | tetrahydroxyflavone | metabolite |
wogonin | wogonin : A dihydroxy- and monomethoxy-flavone in which the hydroxy groups are positioned at C-5 and C-7 and the methoxy group is at C-8. wogonin: structure in first source | dihydroxyflavone; monomethoxyflavone | angiogenesis inhibitor; antineoplastic agent; cyclooxygenase 2 inhibitor; plant metabolite |
cholesta-3,5-dien-7-one | |||
trans-metanicotine | metanicotine: RN given refers to parent cpd with unspecified isomeric designation | ||
a 85380 | A 85380: structure given in first source; A-85380 is the S-enantiomer; A-159470 is the R-enantiomer | ||
ar-r 17779 | AR-R 17779: structure in first source | ||
3-(2,4-dimethoxybenzylidene)anabaseine | 3-(2,4-dimethoxybenzylidene)anabaseine: an alpha7nAChR nicotinic receptor agonist | dimethoxybenzene | |
l 745870 | 3-((4-(4-chlorophenyl)piperazin-1-yl)methyl)-1H-pyrrolo(2,3-b)pyridine: selective for D(4) receptors; structure in first source | piperazines | |
1-Ethyl-9H-pyrido[3,4-b]indole | harmala alkaloid | ||
levorphanol | Levorphanol: A narcotic analgesic that may be habit-forming. It is nearly as effective orally as by injection. | morphinane alkaloid | |
dextromethorphan | dextromethorphan : A 6-methoxy-11-methyl-1,3,4,9,10,10a-hexahydro-2H-10,4a-(epiminoethano)phenanthrene in which the sterocenters at positions 4a, 10 and 10a have S-configuration. It is a prodrug of dextrorphan and used as an antitussive drug for suppressing cough. Dextromethorphan: Methyl analog of DEXTRORPHAN that shows high affinity binding to several regions of the brain, including the medullary cough center. This compound is an NMDA receptor antagonist (RECEPTORS, N-METHYL-D-ASPARTATE) and acts as a non-competitive channel blocker. It is one of the widely used ANTITUSSIVES, and is also used to study the involvement of glutamate receptors in neurotoxicity. | 6-methoxy-11-methyl-1,3,4,9,10,10a-hexahydro-2H-10,4a-(epiminoethano)phenanthrene | antitussive; environmental contaminant; neurotoxin; NMDA receptor antagonist; oneirogen; prodrug; xenobiotic |
dextrorphan | Dextrorphan: Dextro form of levorphanol. It acts as a noncompetitive NMDA receptor antagonist, among other effects, and has been proposed as a neuroprotective agent. It is also a metabolite of DEXTROMETHORPHAN. | morphinane alkaloid | |
licostinel | licostinel: a glycine site NMDA receptor antagonist; structure given in first source | ||
mg 624 | triethyl-(beta-4-stilbenoxyethyl)ammonium: inhibits alpha7 nicotinic receptors; structure in first source | ||
5-ia-85380 | aromatic ether | ||
ro 25-6981 | Ro 25-6981 : A member of the class of piperidines that is 4-benzylpiperidine substituted by a 3-hydroxy-3-(4-hydroxyphenyl)-2-methylpropyl group at position 1 (the 1R,2S-stereoisomer). It is a potent antagonist of the GluN2B subunit of the N-methyl-D-aspartate (NMDA) receptor. Ro 25-6981: blocks NMDA receptors containg NR2B subunit; structure in first source | benzenes; phenols; piperidines; secondary alcohol; tertiary amino compound | anticonvulsant; antidepressant; neuroprotective agent; NMDA receptor antagonist |
icatibant | oligopeptide | beta-adrenergic antagonist; bradykinin receptor antagonist; peptidomimetic | |
eaa-090 | EAA-090: a potent N-methyl-D-aspartate antagonist; structure in first source | dialkylarylamine; tertiary amino compound | |
ganaxolone | ganaxolone: a selective, high-affinity, steroid modulator of the GABA(A) receptor; structure given in first source; RN given refers to (3alpha,5alpha)-isomer | corticosteroid hormone | |
pd 174494 | PD 174494: structure in first source | piperidines | |
bis(7)-tacrine | secondary amino compound | apoptosis inhibitor; EC 1.14.13.39 (nitric oxide synthase) inhibitor; EC 3.1.1.7 (acetylcholinesterase) inhibitor; neuroprotective agent | |
a 84543 | |||
fpl 15896ar | |||
azd 0328 | spiro(1-azabicyclo(2.2.2)octane-3,2'(3H)-furo(2,3-b)pyridine): AZD-0328 is the (2'R)-isomer and D-tartrate salt; an alpha7 neuronal nicotinic receptor agonist; structure in first source | ||
radafaxine | radafaxine: a bupropion metabolite; radafaxine is a (+)-isomer of hydroxybupropion | ||
pnu-282987 | carbonyl compound; organohalogen compound | ||
ssr180711 | SSR180711: a selective alpha7 acetylcholine nicotinic receptor (n-AChRs) partial agonist; structure in first source | ||
(4-benzylpiperidin-1-yl)-(6-hydroxy-1h-indol-2-yl)methanone | (4-benzylpiperidin-1-yl)-(6-hydroxy-1H-indol-2-yl)methanone: an NR2B-subunit selective antagonist; structure in first source | ||
sb 223245 | |||
ispronicline | ispronicline: a neuronal nicotinic acetylcholine receptor modulator; has antidepressant, neuroprotective, and cognitive effects; structure in first source | ||
a-317491 | A-317491: structure in first source | ||
l 755507 | L 755507: a benzenesulfonamide derivative; structure in first source | ||
tqx 173 | |||
brl 37344 | BRL 37344: SB 206606 is the (R,R)-isomer | monocarboxylic acid | |
(1rs,1's)-peaqx | |||
gw 9578 | GW 9578: a peroxisome proliferator-activated receptor alpha agonist; structure in first source | ||
4-iodo-2,6-diisopropylphenol | 4-iodo-2,6-diisopropylphenol: structure in first source | ||
4-n-butyl-1-(4-(2-methylphenyl)-4-oxo-1-butyl)-piperidine hydrogen chloride | |||
desnitroimidacloprid | desnitroimidacloprid: a nicotinic receptor agonist; structure in first source | ||
dianicline | dianicline: an alpha4beta2 nicotinic receptor agonist; may be useful as an aid in quitting smoking; structure in first source | ||
pnu-282987 | |||
naluzotan | naluzotan: an antidepressant and anti-anxiety agent; structure in first source | ||
basimglurant | |||
n-methylepibatidine | N-methylepibatidine: structure in first source | ||
ro 4956371 | 2-chloro-4-((2,5-dimethyl-1-(4-(trifluoromethoxy)phenyl)-1H-imidazol-4-yl)ethynyl)pyridine: a metabotropic glutamate receptor 5 antagonist; structure in first source | ||
sazetidine-a | sazetidine-A: a ligand that desensitizes alpha4beta2 nicotinic acetylcholine receptors without activating them; structure in first source | ||
ns 9283 | 3-(3-(pyridine-3-yl)-1,2,4-oxadiazol-5-yl)benzonitrile: an alpha4beta2 nAChR agonist | ||
etoxadrol | etoxadrol: was heading 1975-94 (see under PIPERIDINES 1975-90); use PIPERIDINES to search ETOXADROL 1975-90; dissociative anesthetic with some cardiovascular effects | ketal | |
methoxydine | 1-(1-(4-methoxyphenyl)cyclohexyl)piperidine: a glutamate NMDA receptor ligand; structure in first source | ||
3-bromocytisine | 3-bromocytisine: structure in first source | ||
mdv 3100 | (trifluoromethyl)benzenes; benzamides; imidazolidinone; monofluorobenzenes; nitrile; thiocarbonyl compound | androgen antagonist; antineoplastic agent | |
af 353 | 5-(5-iodo-2-isopropyl-4-methoxyphenoxy)pyrimidine-2,4-diamine: a P2X3 and P2X2/3 receptor antagonist; structure in first source | ||
a 803467 | A 803467: an Nav1.8 sodium channel blocker; structure in first source | ||
valproate sodium | Epilim: oral sodium valproate used as antidepressive agent sodium valproate : The sodium salt of valproic acid. valproate : A branched-chain saturated fatty acid anion that is the conjugate base of valproic acid. | organic sodium salt | geroprotector |
af-219 | Gefapixant: a P2X3 receptor antagonist | ||
apalutamide | |||
a-582941 | A-582941: nicotinic acetylcholine receptor (alpha7 nAChR) agonist | ||
nitd 609 | NITD 609: an antimalarial and coccidiostat; structure in first source | ||
wms 1410 | |||
n,n-diallyl-5-methoxytryptamine | N,N-diallyl-5-methoxytryptamine: structure in first source | tryptamines | |
imidacloprid | (E)-imidacloprid : The E-isomer of imidacloprid. | imidacloprid; imidazolidines; monochloropyridine | environmental contaminant; genotoxin; neonicotinoid insectide; nicotinic acetylcholine receptor agonist; xenobiotic |
3-(4-hydroxy-2-methoxybenzylidene)anabaseine |