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| Formula | C18H19N3O2 |
| Molar mass | 309.369 g·mol−1 |
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Nerisopam (GYKI-52322, EGIS-6775) is a drug which is a 2,3-benzodiazepine derivative, related to tofisopam. It has potent anxiolytic and neuroleptic effects in animal studies. [1] [2] [3]
Pinazepam is a benzodiazepine drug. It possesses anxiolytic, anticonvulsant, sedative and skeletal muscle relaxant properties.
Camazepam is a benzodiazepine psychoactive drug, marketed under the brand names Albego, Limpidon and Paxor. It is the dimethyl carbamate ester of temazepam, a metabolite of diazepam. While it possesses anxiolytic, anticonvulsant, skeletal muscle relaxant and hypnotic properties it differs from other benzodiazepines in that its anxiolytic properties are particularly prominent but has comparatively limited anticonvulsant, hypnotic and skeletal muscle relaxant properties.
Gidazepam, also known as hydazepam or hidazepam, is a drug which is an atypical benzodiazepine derivative, developed in the Soviet Union. It is a selectively anxiolytic benzodiazepine. It also has therapeutic value in the management of certain cardiovascular disorders.
Clotiazepam is a thienodiazepine drug which is a benzodiazepine analog. The clotiazepam molecule differs from benzodiazepines in that the benzene ring has been replaced by a thiophene ring. It possesses anxiolytic, skeletal muscle relaxant, anticonvulsant, sedative properties. Stage 2 NREM sleep is significantly increased by clotiazepam.
Tofisopam is an anxiolytic that is marketed in several European countries. Chemically, it is a 2,3-benzodiazepine. Unlike other anxiolytic benzodiazepines however, tofisopam does not have anticonvulsant, sedative, skeletal muscle relaxant, motor skill-impairing or amnestic properties. While it may not be an anticonvulsant in and of itself, it has been shown to enhance the anticonvulsant action of classical 1,4-benzodiazepines and muscimol, but not sodium valproate, carbamazepine, phenobarbital, or phenytoin. Tofisopam is indicated for the treatment of anxiety and alcohol withdrawal, and is prescribed in a dosage of 50–300 mg per day divided into three doses. Peak plasma levels are attained two hours after an oral dose. Tofisopam is not reported as causing dependence to the same extent as other benzodiazepines, but is still recommended to be prescribed for a maximum of 12 weeks.
Bentazepam is a thienodiazepine which is a benzodiazepine analog.
Tandospirone, sold under the brand name Sediel, is an anxiolytic and antidepressant medication used in Japan and China, where it is marketed by Dainippon Sumitomo Pharma. It is a member of the azapirone class of drugs and is closely related to other azapirones like buspirone and gepirone.
Zapizolam is a pyridodiazepine drug, which is a benzodiazepine analog of pyridotriazolodiazepine group. It has sedative and anxiolytic effects similar to those produced by benzodiazepine derivatives, and has been sold illicitly as a designer drug.
Abecarnil (ZK-112,119) is an anxiolytic drug from the β-Carboline family. It is one of a relatively recently developed class of medicines known as the nonbenzodiazepines, which have similar effects to the older benzodiazepine group, but with quite different chemical structures. It is a partial agonist acting selectively at the benzodiazepine site of the GABAA receptor.
Metaclazepam is a drug which is a benzodiazepine derivative. It is a relatively selective anxiolytic with less sedative or muscle relaxant properties than other benzodiazepines such as diazepam or bromazepam. It has an active metabolite N-desmethylmetaclazepam, which is the main metabolite of metaclazepam. There is no significant difference in metabolism between younger and older individuals.
Pipequaline (INN) is an anxiolytic drug that was never marketed. It possesses a novel chemical structure that is not closely related to other drugs of this type. The drug has a similar pharmacological profile to the benzodiazepine family of drugs, but with mainly anxiolytic properties and very little sedative, amnestic or anticonvulsant effects, and so is classified as a nonbenzodiazepine anxiolytic.
Girisopam is a drug which is a 2,3-benzodiazepine derivative, related to tofisopam and zometapine. It has selective anxiolytic action with no sedative, anticonvulsant or muscle relaxant effects.
GYKI 52895 is a drug which is a 2,3-benzodiazepine derivative that also shares the 3,4-methylenedioxyamphetamine pharmacophore. Unlike other similar drugs, GYKI 52895 is a selective dopamine reuptake inhibitor (DARI), which appears to have an atypical mode of action compared to other DARIs. Its DRI activity is shared by numerous addictive drugs including amphetamine and its derivatives, cocaine, and methylphenidate and its derivatives. However, dopaminergic drugs are also prone to producing emetic effects such as in the case of apomorphine.
L-838,417 is an anxiolytic drug used in scientific research. It has similar effects to benzodiazepine drugs, but is structurally distinct and so is classed as a nonbenzodiazepine anxiolytic. The compound was developed by Merck, Sharp and Dohme.
Cyamemazine (Tercian), also known as cyamepromazine, is a typical antipsychotic drug of the phenothiazine class which was introduced by Theraplix in France in 1972 and later in Portugal as well.
Deramciclane (EGIS-3886) is a non-benzodiazepine-type anxiolytic drug to treat various types of anxiety disorders. Deramciclane is a unique alternative to current anxiolytics on the market because it has a novel chemical structure and target. It acts as an antagonist at the 5-HT2A receptor, as an inverse agonist at the 5-HT2C receptor, and as a GABA reuptake inhibitor. The two serotonin receptors are G protein-coupled receptors and are two of the main excitatory serotonin receptor types. Their excitation has been implicated in anxiety and mood. Deramciclane does not affect CYP3A4 activity in metabolizing other drugs, but it is a weak inhibitor of CYP2D6. Some studies also show the drug to have moderate affinity to dopamine D2 receptors and low affinity to dopamine receptor D1. Researchers are looking for alternatives to benzodiazepines for anxiolytic use because benzodiazepine drugs have sedative and muscle relaxant side effects.
TPA-023 (MK-0777) is an anxiolytic drug with a novel chemical structure, which is used in scientific research. It has similar effects to benzodiazepine drugs, but is structurally distinct and so is classed as a nonbenzodiazepine anxiolytic. It is a mixed, subtype-selective ligand of the benzodiazepine site of α1, α2, α3, and α5-containing GABAA receptors, where it acts as a partial agonist at benzodiazepine sites of the α2 and α3-containing subtypes, but as a silent antagonist at α1 and α5-containing subtypes. It has primarily anxiolytic and anticonvulsant effects in animal tests, but with no sedative effects even at 50 times the effective anxiolytic dose.
Lopirazepam (INN) is a short-acting benzodiazepine analog of the pyridodiazepine type with anxiolytic and hypnotic properties. It has never been marketed.
GYKI 52466 is a 2,3-benzodiazepine that acts as an ionotropic glutamate receptor antagonist, which is a non-competitive AMPA receptor antagonist (IC50 values are 10-20, ~ 450 and >> 50 μM for AMPA-, kainate- and NMDA-induced responses respectively), orally-active anticonvulsant, and skeletal muscle relaxant. Unlike conventional 1,4-benzodiazepines, GYKI 52466 and related 2,3-benzodiazepines do not act on GABAA receptors. Like other AMPA receptor antagonists, GYKI 52466 has anticonvulsant and neuroprotective properties.
Emapunil is an anxiolytic drug which acts as a selective agonist at the peripheral benzodiazepine receptor, also known as the mitochondrial 18 kDa translocator protein or TSPO. This protein has multiple functions, among which is regulation of steroidogenesis, particularly the production of neuroactive steroids such as allopregnanolone in the brain. In both animal and human trials, emapunil produced fast acting anxiolytic and anti-panic effects, without producing sedation or withdrawal symptoms following cessation of use. Emapunil is also used in its 11C radiolabelled form to map the distribution of TSPO receptors in the brain.
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