|
Thienodiazepine
A thienodiazepine is a heterocyclic compound containing a diazepine ring fused to a thiophene Thiophene is a heterocyclic compound with the formula C4H4S. Consisting of a planar five-membered ring, it is aromatic as indicated by its extensive substitution reactions. It is a colorless liquid with a benzene-like odor. In most of its react ... ring. :If R1 and R2 are part of a triazole ring, the substance is called a " thienotriazolodiazepine." The thienodiazepine structure forms the central core of some pharmaceutical and recreational drugs, including: * Bentazepam * Clotiazepam * Etizolam * Metizolam * Deschloroetizolam Since thienodiazepines interact with the benzodiazepine receptor site, they typically have similar effects as benzodiazepines. References Thienodiazepines {{heterocyclic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Etizolam
Etizolam (marketed under many brand names) is a thienodiazepine derivative which is a benzodiazepine analog. The etizolam molecule differs from a benzodiazepine in that the benzene ring has been replaced by a thiophene ring and triazole ring has been fused, making the drug a thienotriazolodiazepine. Although a thienodiazepine, etizolam is clinically regarded as a benzodiazepine because of its mode of action via the benzodiazepine receptor and directly targeting GABAA receptors. It possesses anxiolytic, amnesic, anticonvulsant, hypnotic, sedative and skeletal muscle relaxant properties. Etizolam is an anxiolytic found to have lower tolerance and dependence liability than benzodiazepines. It was patented in 1972 and approved for medical use in 1983. As of April 2021, the export of Etizolam has been banned in India. Medical uses * Short-term treatment of insomnia. * Anxiety disorders such as OCD and general anxiety disorder, mostly as a short-term medication to be used pur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thienodiazepines General Structure
A thienodiazepine is a heterocyclic compound containing a diazepine ring fused to a thiophene ring. :If R1 and R2 are part of a triazole ring, the substance is called a "thienotriazolodiazepine." The thienodiazepine structure forms the central core of some pharmaceutical and recreational drugs, including: *Bentazepam *Clotiazepam *Etizolam *Metizolam *Deschloroetizolam Since thienodiazepines interact with the benzodiazepine receptor site, they typically have similar effects as benzodiazepine Benzodiazepines (BZD, BDZ, BZs), sometimes called "benzos", are a class of depressant drugs whose core chemical structure is the fusion of a benzene ring and a diazepine ring. They are prescribed to treat conditions such as anxiety disorders, ...s. References Thienodiazepines {{heterocyclic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clotiazepam
Clotiazepam (marketed under brand name Clozan, Distensan, Trecalmo, Rize, Rizen and Veratran) 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. Indications Clotiazepam has been trialed and found to be effective in the short-term management of anxiety. Clotiazepam is also used as a premedicant in minor surgery in France and Japan, where the drug is commercially available under the brand names ''Veratran'' and ''Rize'', respectively. Pharmacokinetics A cross-over study in six healthy volunteers (median age 28 years) was conducted using single-dose pharmacokinetics of 5 mg clotiazepam drops, oral tablets, and sublingual tablets. The formulations had similar systemic availability. Compared with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thienotriazolodiazepine
A thienotriazolodiazepine is a heterocyclic compound containing a diazepine ring fused to thiophene and triazole rings. Thienotriazolodiazepine forms the central core of several pharmaceutical drugs including: * Brotizolam * Ciclotizolam * Deschloroetizolam * Etizolam * Fluclotizolam * Metizolam Thienotriazolodiazepines interact with the benzodiazepine receptor site, they typically have similar effects as 1,4- benzodiazepines (such as diazepam) and triazolobenzodiazepines (such as alprazolam Alprazolam, sold under the brand name Xanax, among others, is a fast-acting, potent tranquilizer of medium duration in the triazolobenzodiazepine (TBZD) class, which are benzodiazepines (BZDs) fused with a triazole ring. It is most commonly u ...). Thienotriazolodiazepines that are not GABAA receptor positive allosteric modulators include: * Israpafant * JQ1 References {{heterocyclic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bentazepam
Bentazepam (also known as Thiadipone, Tiadipona) is a thienodiazepine which is a benzodiazepine analog. It possesses anxiolytic, anticonvulsant, sedative and skeletal muscle relaxant properties. Peak plasma rates are achieved in around 2,5 hours after oral administration. The elimination half-life is between approximately 2–4 hours. Bentazepam is effective as an anxiolytic. A severe benzodiazepine overdose with bentazepam may result in coma and respiratory failure. Adverse effects include dry mouth, somnolence, asthenia, dyspepsia, constipation, nausea Nausea is a diffuse sensation of unease and discomfort, sometimes perceived as an urge to vomit. While not painful, it can be a debilitating symptom if prolonged and has been described as placing discomfort on the chest, abdomen, or back of the ... and drug-induced lymphocytic colitis has been associated with bentazepam. Severe liver damage and hepatitis has also been associated with bentazepam. Whilst liver failure from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metizolam
Metizolam (also known as desmethyletizolam) is a thienotriazolodiazepine that is the demethylated analogue of the closely related etizolam. Legal status Following its sale as a designer drug, metizolam was classified as controlled substance in Sweden on 26. January 2016. See also * List of benzodiazepine designer drugs The below tables contain a sample list of benzodiazepines and benzodiazepine Analog (chemistry), analogs that are commonly prescribed, with their basic pharmacological characteristics, such as half-life and equivalent doses to other benzodiazepine ... References Chloroarenes Designer drugs GABAA receptor positive allosteric modulators Hypnotics Thienotriazolodiazepines {{sedative-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deschloroetizolam
Deschloroetizolam (also known as Etizolam-2) is a thienotriazolodiazepine that is the dechlorinated analog of the closely related etizolam. The compound has been sold as a designer drug. Legal status Deschloroetizolam is classified and controlled as a hazardous substance in Sweden as of on October 15, 2015. See also * Adinazolam * Clonazolam * Deschloroclotizolam * Diclazepam * Etizolam * Flubromazepam * Flubromazolam * Fluetizolam * Meclonazepam * Metizolam * Nifoxipam * Pyrazolam Pyrazolam (SH-I-04) is a benzodiazepine derivative originally developed by a team led by Leo Sternbach at Hoffman-La Roche in the 1970s. It has since been "rediscovered" and sold as a designer drug since 2012. Pyrazolam has structural similar ... References Designer drugs GABAA receptor positive allosteric modulators Hypnotics Thienotriazolodiazepines {{sedative-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benzodiazepine Receptor
The GABAA receptor (GABAAR) is an ionotropic receptor and ligand-gated ion channel. Its endogenous ligand is γ-aminobutyric acid (GABA), the major inhibitory neurotransmitter in the central nervous system. Upon opening, the GABAA receptor on the postsynaptic cell is selectively permeable to chloride ions (Cl−) and, to a lesser extent, bicarbonate ions (HCO3−). Depending on the membrane potential and the ionic concentration difference, this can result in ionic fluxes across the pore. If the membrane potential is higher than the equilibrium potential (also known as the reversal potential) for chloride ions, when the receptor is activated Cl− will flow into the cell. This causes an inhibitory effect on neurotransmission by diminishing the chance of a successful action potential occurring at the postsynaptic cell. The reversal potential of the GABAA-mediated inhibitory postsynaptic potential (IPSP) in normal solution is −70 mV, contrasting the GABAB IPSP (-100 mV). Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterocyclic Compound
A heterocyclic compound or ring structure is a cyclic compound that has atoms of at least two different elements as members of its ring(s). Heterocyclic chemistry is the branch of organic chemistry dealing with the synthesis, properties, and applications of these heterocycles. Examples of heterocyclic compounds include all of the nucleic acids, the majority of drugs, most biomass (cellulose and related materials), and many natural and synthetic dyes. More than half of known compounds are heterocycles. 59% of US FDA-approved drugs contain nitrogen heterocycles. Classification The study of heterocyclic chemistry focuses especially on unsaturated derivatives, and the preponderance of work and applications involves unstrained 5- and 6-membered rings. Included are pyridine, thiophene, pyrrole, and furan. Another large class of heterocycles refers to those fused to benzene rings. For example, the fused benzene derivatives of pyridine, thiophene, pyrrole, and furan are quinol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diazepine
Diazepine is a seven-membered heterocyclic compound with two nitrogen atoms (e.g., in ring positions 1 and 2). Types include: * 1,2-diazepine * 1,3-diazepine * 1,4-diazepine ** Benzodiazepines Benzodiazepines (BZD, BDZ, BZs), sometimes called "benzos", are a class of depressant drugs whose core chemical structure is the fusion of a benzene ring and a diazepine ring. They are prescribed to treat conditions such as anxiety disorders, i ..., a class of commonly used medications whose structure contains a 1,4-diazepine ring {{heterocyclic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thiophene
Thiophene is a heterocyclic compound with the formula C4H4S. Consisting of a planar five-membered ring, it is aromatic as indicated by its extensive substitution reactions. It is a colorless liquid with a benzene-like odor. In most of its reactions, it resembles benzene. Compounds analogous to thiophene include furan (C4H4O), selenophene (C4H4Se) and pyrrole (C4H4NH), which each vary by the heteroatom in the ring. Isolation and occurrence Thiophene was discovered as a contaminant in benzene. It was observed that isatin (an indole) forms a blue dye if it is mixed with sulfuric acid and crude benzene. The formation of the blue indophenin had long been believed to be a reaction of benzene itself. Viktor Meyer was able to isolate thiophene as the actual substance responsible for this reaction. Thiophene and especially its derivatives occur in petroleum, sometimes in concentrations up to 1–3%. The thiophenic content of oil and coal is removed via the hydrodesulfurization (HDS) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triazole
A triazole is a heterocyclic compound featuring a five-membered ring of two carbon atoms and three nitrogen atoms with molecular formula C2H3N3. Triazoles exhibit substantial isomerism, depending on the positioning of the nitrogen atoms within the ring. Many triazoles are versatile, biologically active compounds commonly used as fungicides and plant retardants. However, triazoles are also useful in bioorthogonal chemistry, because the large number of nitrogen atoms causes triazoles to react similar to azides. Lastly, the many free lone pairs in triazoles make them useful as coordination compounds, although not typically as haptic ligands. Isomerism There are four triazole isomers, which are conventionally divided into two pairs of tautomers. In the 1,2,3-triazoles, the three nitrogen atoms are adjacent; in the 1,2,4-triazoles, an interstitial carbon separates out one nitrogen atom. Each category has two tautomers that differ by which nitrogen has a hydrogen bonded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
