Month: November 2022

Wang, Kangcai published the artcileIodocuprate-containing ionic liquids as promoters for green propulsion, Product Details of C3H7IN4, the main research area is iodocuprate ionic liquid promoter propulsion boron containing fuel.

In this work, four novel iodocuprate-containing ionic liquids, CuILs are prepared and comprehensively characterized. In addition to their interesting mol. structures and phys. properties CuILs exhibited capability to efficiently promote hypergolic reactions between boron-containing [EMIM+][H3BCN-] and [MIM]·[BH3] fuels and a highly concentrated H2O2 (95%) oxidizer. The most promising promoter CuIL 3 has the decomposition temperature well above the decomposition temperature of the fuels, was stable in promoter-in-fuel mixtures for weeks and showed ignition delay times down to 14 ms. It is believed that further development of the new iodocuprate ionic liquids can lead to promising “”green”” H2O2-based bipropellant systems for space applications.

Journal of Materials Chemistry A: Materials for Energy and Sustainability published new progress about Crystal structure. 39602-93-2 belongs to class triazoles, name is 4-Amino-1-methyl-4H-1,2,4-triazol-1-ium iodide, and the molecular formula is C3H7IN4, Product Details of C3H7IN4.

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Xue, Hong published the artcileEnergetic salts of substituted 1,2,4-triazolium and tetrazolium 3,5-dinitro-1,2,4-triazolates, HPLC of Formula: 39602-93-2, the main research area is energetic salt triazolium tetrazolium dinitrotriazolate.

Energetic salts comprised of substituted 1,2,4-triazolium and tetrazolium cations and 3,5-dinitro-1,2,4-triazolate anion were synthesized and characterized. The structure of 4,5-dimethyl-1-aminotetrazolium 3,5-dinitro-1,2,4-triazolate (16) was confirmed by X-ray anal. Based on exptl. obtained heats of combustion, these materials have calculated heats of formation ranging from ΔHf° = 118 (2) to 778 kJ mol-1 (10) with densities >1.5 g cm-3. Salts, 2, 4, 7, 9 and 10, fall into the ionic liquid class (mp < 100 °C). Journal of Materials Chemistry published new progress about Crystal structure. 39602-93-2 belongs to class triazoles, name is 4-Amino-1-methyl-4H-1,2,4-triazol-1-ium iodide, and the molecular formula is C3H7IN4, HPLC of Formula: 39602-93-2.

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Belletire, John L. published the artcilePairing heterocyclic cations with closo-dodecafluorododecaborate (2-), Application of 4-Amino-1-methyl-4H-1,2,4-triazol-1-ium iodide, the main research area is pairing heterocyclic cation closo dodecafluorododecaborate; dipotassium closo dodecafluorododecaborate reaction heterocyclium salt; crystal mol structure triazolium imidazolium pyrimidinium purinium closo dodecafluorododecaborate.

Eight binary salts that pair triazolium(1+), imidazolium(1+), pyrimidinium(1+), or purinium(1+) cations with the icosahedral closo-dodecafluorododecaborate(2-) anion (B12F12 2-) were synthesized using open-air benchtop metathesis reactions in water or acetonitrile. The scale of the reactions varied from just milligrams to nearly one gram of the K2B12F12 starting material. Other reaction conditions, the scope of the reaction, and the solubilities for the new salts are discussed. Five [heterocyclium]2[B12F12] salts, which were obtained in yields ranging from 84% to 99%, displayed significantly higher densities than the corresponding previously reported analogous [heterocyclium]2[B12H12] and [heterocyclium][CB11H12] salts. A ninth high-d. salt consisted of B12F12 2- paired with a complex Ag4(triazole)8 4+ cation. The structures of eight of the nine new compounds were determined by single-crystal x-ray diffraction anal. The d. of five [heterocyclium]2[B12F12] salts was found to increase approx. linearly as the distance between the five-membered-ring heterocyclium(1+) cation centroids decreased. This work demonstrates addnl. flexibility for the rational design of ionic structures with predictable properties, which will ultimately permit the tailoring of ingredient-response behavior.

Journal of Fluorine Chemistry published new progress about Crystal structure. 39602-93-2 belongs to class triazoles, name is 4-Amino-1-methyl-4H-1,2,4-triazol-1-ium iodide, and the molecular formula is C3H7IN4, Application of 4-Amino-1-methyl-4H-1,2,4-triazol-1-ium iodide.

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Wang, Ruihu published the artcileHeterocyclic-Based Nitrodicyanomethanide and Dinitrocyanomethanide Salts: A Family of New Energetic Ionic Liquids, Category: triazoles, the main research area is nitrodicyanomethanide dinitrocyanomethanide salt energetic ionic liquid crystallog.

Twelve novel energetic salts 1a-f and 2a-f with nitrodicyanomethanide and dinitrocyanomethanide anions paired with 1,5-diamino-4-methyltetrazolium, 1,4-dimethyl-5-aminotetrazolium 1,4,5-trimethyltetrazolium, 1-methyl-4-amino-1,2,4-triazolium, 1,4-dimethyltriazolium, and 1,3-dimethylimidazolium were prepared through metathesis reactions of equivalent silver(I) salts with corresponding iodide salts in acetonitrile. Key phys. properties, such as m.p., thermal stability and d., were measured. The relation between their structures and these properties was determined The structures of 1,5-diamino-4-methyltetrazolium-based salts 1a and 2a were further confirmed by single-crystal X-ray anal. The densities and standard enthalpies of formation for these energetic salts were calculated All of the salts possess higher enthalpies of formation than the nitrate analogs.

Inorganic Chemistry published new progress about Crystal structure. 39602-93-2 belongs to class triazoles, name is 4-Amino-1-methyl-4H-1,2,4-triazol-1-ium iodide, and the molecular formula is C3H7IN4, Category: triazoles.

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Sekioka, Ryuichi published the artcileDiscovery of N-ethylpyridine-2-carboxamide derivatives as a novel scaffold for orally active γ-secretase modulators, Name: 4-(1,2,4-Triazol-1-yl)benzyl Alcohol, the main research area is Alzheimer’s disease gamma secretase modulator myloid beta peptide; Alzheimer’s disease; Amyloid-beta peptide; Cytochrome P450 3A4; Gamma-secretase modulator.

Gamma-secretase modulators (GSMs) are promising disease-modifying drugs for Alzheimer’s disease because they can selectively decrease pathogenic amyloid-β42 (Aβ42) levels. Here we report the discovery of orally active N-ethylpyridine-2-carboxamide derivatives as GSMs. The isoindolinone moiety of 5-[8-(benzyloxy)-2-methylimidazo[1,2-a]pyridin-3-yl]-2-ethyl-2,3-dihydro-1H-isoindol-1-one hydrogen chloride (1a) was replaced with a picolinamide moiety. Optimization of the benzyl group significantly improved GSM activity and mouse microsomal stability. 5-{8-[([1,1′-Biphenyl]-4-yl)methoxy]-2-methylimidazo[1,2-a]pyridin-3-yl}-N-ethylpyridine-2-carboxamide hydrogen chloride (1v) potently reduced Aβ42 levels with an IC50 value of 0.091μM in cultured cells without inhibiting CYP3A4. Moreover, 1v demonstrated a sustained pharmacokinetic profile and significantly reduced brain Aβ42 levels in mice.

Bioorganic & Medicinal Chemistry published new progress about Alzheimer disease. 143426-50-0 belongs to class triazoles, name is 4-(1,2,4-Triazol-1-yl)benzyl Alcohol, and the molecular formula is C9H9N3O, Name: 4-(1,2,4-Triazol-1-yl)benzyl Alcohol.

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Martinez-Viturro, Carlos M. published the artcileDiazaspirononane Nonsaccharide Inhibitors of O-GlcNAcase (OGA) for the Treatment of Neurodegenerative Disorders, Recommanded Product: 7-Chloro-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine, the main research area is azaspirononane OGA inhibitor neurodegenerative disorder Alzheimer bacterial hydrolase ortholog.

O-GlcNAcylation is a post-translational modification of tau understood to lower the speed and yield of its aggregation, a pathol. hallmark of Alzheimer’s disease (AD). O-GlcNAcase (OGA) is the only enzyme that removes O-linked N-acetyl-D-glucosamine (O-GlcNAc) from target proteins. Therefore, inhibition of OGA represents a potential approach for the treatment of AD by preserving the O-GlcNAcylated tau protein. Herein, we report the multifactorial optimization of high-throughput screening hit 8 to a potent, metabolically stable, and orally bioavailable diazaspirononane OGA inhibitor (+)-56. The human OGA X-ray crystal structure has been recently solved, but bacterial hydrolases are still widely used as structural homologues. For the first time, we reveal how a nonsaccharide series of inhibitors binds bacterial OGA and discuss the suitability of two different bacterial orthologues as surrogates for human OGA. These breakthroughs enabled structure-activity relationships to be understood and provided context and boundaries for the optimization of druglike properties.

Journal of Medicinal Chemistry published new progress about Alzheimer disease. 24415-66-5 belongs to class triazoles, name is 7-Chloro-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine, and the molecular formula is C6H5ClN4, Recommanded Product: 7-Chloro-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine.

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Kumar, Jitendra published the artcilePyrimidine-Triazolopyrimidine and Pyrimidine-Pyridine Hybrids as Potential Acetylcholinesterase Inhibitors for Alzheimer’s Disease, Name: 7-Chloro-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine, the main research area is pyrimidine triazolopyrimidine preparation Alzheimer disease acetylcholinesterase inhibitor.

Synthesis and testing of pyrimidine derivatives in conjugation with triazolopyrimidine I [R = [(6-bromonaphthalen-2-yl)oxy], (4-nitrophenyl)aminyl, (naphthalen-2-yloxy)] based hybrid scaffold of AChE inhibitors for development of new mols. towards the treatment of AD were reported. A multipronged approach employing computational, chem. and biol. approaches was used to find the best inhibitor of AChE. Three mols. (2-(4-(6-chloropyrimidin-4-yl)piperazin-1-yl)nicotinonitrile, I (R = [(6-bromonaphthalen-2-yl)oxy]) and II) derived from this scaffold inhibited AChE in nanomolar to micromolar range. Highest activity was shown by II which has IC50 value of 36 nM. Inhibitory effect of II was stronger for human AChE in neuronal cell extract compared to eelAChE. This activity is comparable to donepezil (IC50 = 38nM) which is considered as good standard among AChE inhibitors. The inhibitory activity of II was also in agreement with mol. simulation studies which showed stable interaction of the II with the catalytic active site as well as peripheral anionic site. Mol. simulation studies also indicated stronger interaction of II with rhAChE than TcAChE. This was later confirmed in studies with neuronal cell extract where compound II showed enzyme inhibition at 25 nM. Further this mol. was not found to be toxic or carcinogenic.

ChemistrySelect published new progress about Alzheimer disease. 24415-66-5 belongs to class triazoles, name is 7-Chloro-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine, and the molecular formula is C6H5ClN4, Name: 7-Chloro-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine.

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Kumar, Jitendra published the artcileSynthesis and screening of triazolopyrimidine scaffold as multi-functional agents for Alzheimer’s disease therapies, Application In Synthesis of 24415-66-5, the main research area is triazolopyrimidine quinoline hybrid preparation acetylcholinesterase inhibitory activity Alzheimer; cyanopyridine quinoline hybrid preparation acetylcholinesterase inhibitory activity Alzheimer; Acetylcholinesterase; Alzheimer’s disease; Butyrylcholinesterase; Molecular docking; Quinoline; Triazolopyrimidine.

In present study a series of triazolopyrimidine-quinoline and cyanopyridine-quinoline hybrids were designed, synthesized and evaluated as acetylcholinesterase inhibitors (AChEIs). Mol. docking and scoring was utilized for the design of inhibitors. The mols. were synthesized via an easily accessible, convergent synthetic route. Three triazolopyrimidine based compounds showed nanomolar activity towards acetylcholinesterase. Among them, Et 6-fluoro-4-(4-(5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl)piperazin-1-yl)quinoline-3-carboxylate (I), strongly inhibited AChE with IC50 value of 42 nM. Furthermore compound I was identified as most promising compound with 12 fold selectivity against butyrylcholinesterase (BuChE). This compound displayed a composed multitargeted profile with promising inhibition of self-induced and AChE – induced Aβ aggregation and antioxidant activity.

European Journal of Medicinal Chemistry published new progress about Alzheimer disease. 24415-66-5 belongs to class triazoles, name is 7-Chloro-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine, and the molecular formula is C6H5ClN4, Application In Synthesis of 24415-66-5.

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Jameel, Ehtesham published the artcileRational design, synthesis and biological screening of triazine-triazolopyrimidine hybrids as multitarget anti-Alzheimer agents, Application In Synthesis of 24415-66-5, the main research area is triazine triazolopyrimidine preparation antialzheimer antioxidant SAR mol docking human; ADME analysis; Acetylcholinesterase; Alzheimer’s disease; Butyrylcholinesterase; Molecular docking; Triazine; Triazolopyrimidine quinoline.

A series of triazine-triazolopyrimidine hybrids were designed, synthesized and characterized by various spectral techniques. Among the synthesized compounds, the di-substituted triazine-triazolopyrimidine derivatives I (R1 = 3-F3CC6H4NH2, 4-MeOC6H4NH2, 4-FC6H4NH2, 2-FC6H4NH2) showed better acetylcholinesterase (AChE) inhibitory activity than the corresponding tri-substituted triazine-triazolopyrimidine derivatives Out of the disubstituted triazine-triazolopyrimidine based compounds, I (R1 = 3-F3CC6H4NH2) and I (R1 = 4-MeOC6H4NH2) showed encouraging inhibitory activity on AChE with IC50 values 0.065 and 0.092 μM, resp. and they also demonstrated good inhibition selectivity towards AChE over BuChE by ~28 folds. Furthermore, kinetic anal. and mol. modeling studies of these compounds targeted both catalytic active site as well as peripheral anionic site of AChE. In addition, these derivatives effectively modulated Aβ self-aggregation as investigated through CD spectroscopy, ThT fluorescence assay and electron microscopy. Besides, these compounds exhibited potential antioxidant (2.15 and 2.91 trolox equivalent by ORAC assay) and metal chelating properties. In silico ADMET profiling highlighted that, these novel triazine derivatives have appropriate drug like properties and possess very low toxic effects in the primarily pharmacokinetic study. Overall, the multitarget profile exerted by these novel triazine mols. qualified them as potential anti-Alzheimer drug candidates in AD therapy.

European Journal of Medicinal Chemistry published new progress about Alzheimer disease. 24415-66-5 belongs to class triazoles, name is 7-Chloro-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine, and the molecular formula is C6H5ClN4, Application In Synthesis of 24415-66-5.

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Phelan, James P. published the artcileRapid access to diverse, trifluoromethyl-substituted alkenes using complementary strategies, Product Details of C7H6BrN3, the main research area is trifluoromethyl alkene preparation; silyl alc trifluoromethyl cross coupling palladium; Peterson elimination; organotrifluoroborate cross coupling palladium.

Two synergistic approaches to the facile assembly of complex α-trifluoromethyl alkenes are described. Using α-trifluoromethyl-β-silyl alcs. as masked trifluoromethyl alkenes, cross-coupling or related functionalization processes at distal electrophilic sites can be executed without inducing Peterson elimination. Subsequent Lewis acidic activation affords functionalized α-trifluoromethyl alkenes. Likewise, the development of a novel α-trifluoromethylvinyl trifluoroborate reagent complements this approach and allows a one-step cross-coupling of (hetero)aryl halides to access a broad array of complex α-trifluoromethyl alkenes.

Chemical Science published new progress about Addition reaction. 108281-78-3 belongs to class triazoles, name is 6-Bromo-3-methyl-[1,2,4]triazolo[4,3-a]pyridine, and the molecular formula is C7H6BrN3, Product Details of C7H6BrN3.

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics