Author: Jessica.F

Asoh, Kohsuke; Kohchi, Masami; Hyoudoh, Ikumi; Ohtsuka, Tatsuo; Masubuchi, Miyako; Kawasaki, Kenichi; Ebiike, Hirosato; Shiratori, Yasuhiko; Fukami, Takaaki A.; Kondoh, Osamu; Tsukaguchi, Toshiyuki; Ishii, Nobuya; Aoki, Yuko; Shimma, Nobuo; Sakaitani, Masahiro published the artcile< Synthesis and structure-activity relationships of novel benzofuran farnesyltransferase inhibitors>, Name: 5-Bromo-1-methyl-1H-imidazole, the main research area is benzofuran imidazolyl preparation farnesyltransferase inhibitor.

A series of imidazolylbenzofuran-based farnesyltransferase inhibitors have been designed and synthesized as antitumor agents. Among them, I showed the most potent enzyme inhibitory activity (IC50 = 1.1 nM) and antitumor activity in human cancer xenografts in mice.

Bioorganic & Medicinal Chemistry Letters published new progress about Crystal structure. 1003-21-0 belongs to class imidazoles-derivatives, and the molecular formula is C4H5BrN2, Name: 5-Bromo-1-methyl-1H-imidazole.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Pohida, Katherine; Maloney, David J.; Mott, Bryan T.; Rai, Ganesha published the artcile< Room-Temperature, Copper-Free Sonogashira Reactions Facilitated by Air-Stable, Monoligated Precatalyst [DTBNpP] Pd(crotyl)Cl>, Related Products of 1003-21-0, the main research area is Sonogashira coupling palladium DTBNpP crotyl catalyzed.

A novel application of [DTBNpP] Pd(crotyl)Cl (DTBNpP = di-tert-butylneopentylphosphine) (P2), an air-stable, com.-available palladium precatalyst that allows rapid access to a mono-ligated state, has been identified for room temperature, copper-free Sonogashira couplings of challenging aryl bromides and alkynes. The mild reaction conditions with TMP in DMSO afford up to 97% yields, excellent functional group tolerability, and broad reaction compatibility with access to one-pot indole formation.

ACS Omega published new progress about Alkynes Role: RCT (Reactant), RACT (Reactant or Reagent). 1003-21-0 belongs to class imidazoles-derivatives, and the molecular formula is C4H5BrN2, Related Products of 1003-21-0.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Matsuki-Fukushima, Miwako; Fujikawa, Kaoru; Inoue, Satoshi; Nakamura, Masanori published the artcile< Expression and localization of CD63 in the intracellular vesicles of odontoblasts>, SDS of cas: 6823-69-4, the main research area is expression intracellular vesicle odontoblast; CD63; Dentinogenesis; Odontoblast; Tooth development; Vesicle transport.

We hypothesized that odontoblasts release exosomes as well as dental pulp cells and focused on the exosome membrane marker CD63. Odontoblasts are well-differentiated mesenchymal cells that produce dentin. Dental pulp, a tissue complex formed with odontoblasts, releases exosomes to epithelial cells and stimulates their differentiation to ameloblasts. However, the localization of CD63 in differentiated odontoblasts is poorly understood. Therefore, herein, we aimed to reveal the expression of CD63 in odontoblasts during tooth development. We first investigated the localization of CD63 in mouse incisors and molars using immunofluorescence. In adult mouse incisors, the anti-CD63 antibody was pos. in mature odontoblasts and dental pulp cells but not in pre-odontoblasts along the ameloblasts in the apical bud. Addnl., the anti-CD63 antibody was observed as a vesicular shape in the apical area of odontoblast cytosol and inside Tomes’ fibers. The anti-CD63 antibody-pos. vesicles were also observed using immunoelectron microscopy. Moreover, during mouse mandibular molar tooth morphogenesis (E16 to postnatal 6 wk), labeling of anti-CD63 antibody was pos. in the odontoblasts at E18. In contrast, the anti-CD63 antibody was pos. in the dental pulp after postnatal day 10. Furthermore, anti-CD63 antibody was merged with the multivesicular body marker Rab7 in dental pulp tissues but not with the lysosome marker Lamp1. Finally, we determined the effect of a ceramide-generation inhibitor GW4869 on the mouse organ culture of tooth germ in vitro. After 28 days of GW4869 treatment, both CD63 and Rab7 were neg. in Tomes’ fibers, but were pos. in control odontoblasts. These results suggest that CD63-pos. vesicular organelles are important for mouse tooth morphogenesis.

Histochemistry and Cell Biology published new progress about Adult, mammalian. 6823-69-4 belongs to class imidazoles-derivatives, and the molecular formula is C30H30Cl2N6O2, SDS of cas: 6823-69-4.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Gong, Liao-Kuo; Du, Ke-Zhao; Huang, Xiao-Ying published the artcile< PbX2(OOCMMIm) (X = Cl, Br): photoluminescent organic-inorganic hybrid lead halide compounds with high proton conductivity>, Name: 1-carboxymethyl-3-methylimidazolium chloride, the main research area is lead carboxymethylmethylimidazolium halide preparation photoluminescence proton conductivity; crystal structure lead carboxymethylmethylimidazolium chloride bromide inorganic organic hybrid.

Differences in the electronegativity and hydrophilicity of halogens lead to differences in proton-conducting and photoluminescence properties in hybrid organic-inorganic lead halide compounds of [PbX2(OOCMMIm)]n (X = Cl 1, Br 2, HOOCMMIm = 1-carboxymethyl-3-methylimidazolium).

Dalton Transactions published new progress about Activation energy (proton-transport). 700370-07-6 belongs to class imidazoles-derivatives, and the molecular formula is C6H9ClN2O2, Name: 1-carboxymethyl-3-methylimidazolium chloride.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Lu, Yixia; Hu, Jian; Zeng, Yanbo; Zhu, Ying; Wang, Hailong; Lei, Xiaoling; Huang, Shisi; Guo, Longhua; Li, Lei published the artcile< Electrochemical determination of rutin based on molecularly imprinted poly (ionic liquid) with ionic liquid-graphene as a sensitive element>, Category: imidazoles-derivatives, the main research area is rutin graphene molecularly imprinted polyionic liquid electrochem sensor.

A novel electrochem. sensor for rutin determination based on molecularly imprinted poly (ionic liquid) (MIPIL)/ionic liquid-graphene (IL-GR) modified electrode was developed. MIPIL was synthesized via free radical polymerization using rutin as the template, 1-allyl-3-Et imidazolium bromide ([AEIm]Br) as the functional monomer and 1,4-butanediyl-3,3′-bis-L-vinylimidazolium dibromide ([V2C4(mim)2]Br2) as the crosslinker. The composite of IL-GR as an electrode sensitive element was prepared using carboxymethyl-3-methylimidazolium chloride ([HO2CMMIm]Cl) by one-step ultrasound method. Fourier transform IR spectroscopy and scanning electron microscope were used to characterize IL-GR and MIPIL. The increased surface area and conductivity of IL-GR/GCE improved the sensitivity of rutin sensor. Under the optimum condition, good linearity for rutin anal. by the MIPIL-based sensor was obtained from 0.03 to 1μM. A low limit of detection for rutin was 0.01μM (S/N = 3). The MIPIL-based sensor demonstrated superiority on DPV response compared to the imprinted sensors based on traditional crosslinkers. The proposed sensor presented good selectivity for rutin and successfully applied for rutin determination in tablets with RSD of 3.05% and the average recovery range was 98.3%.

Sensors and Actuators, B: Chemical published new progress about Atom transfer radical polymerization. 700370-07-6 belongs to class imidazoles-derivatives, and the molecular formula is C6H9ClN2O2, Category: imidazoles-derivatives.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Peng, Lu; Wang, Yawen; Yang, Bingwei; Qin, Qi; Song, Erqun; Song, Yang published the artcile< Polychlorinated biphenyl quinone regulates MLKL phosphorylation that stimulates exosome biogenesis and secretion via a short negative feedback loop>, Recommanded Product: p-Benzenediacrylanilide, 4′,4′′-di-2-imidazolin-2-yl-, dihydrochloride, the main research area is polychlorinated biphenyl quinone MLKL protein phosphorylation exosome; Environmental pollution; Exosome; MLKL; Necroptosis; PCBs.

Polychlorinated biphenyls (PCBs) are one of the most refractory organic environmental pollutants that ubiquitous existence in nature. Due to the polymorphism of their metabolic pathway and corresponding downstream metabolites, PCBs’ toxicities are complicated and need extended investigation. In the present study, we discovered a novel regulatory mechanism of PCB quinone metabolite-driven programmed cell death (PCD), namely, necroptosis. We first confirmed that PCB quinone induces cancerous HeLa and MDA-MB-231 cells necroptosis via the phosphorylation of mixed lineage kinase domain-like MLKL (p-MLKL). Then, we found that PCB quinone-stimulated p-MLKL enhances exosome biogenesis and secretion. Exosome interacts with p-MLKL and releases p-MLKL to the outside of the cell, and ultimately alleviating PCB quinone-induced necroptosis. The inhibition of exosome secretion by GW4869 significantly elevated necroptotic level, indicating the establishment of a short neg. feedback loop of MLKL-exosome secretion upon PCB quinone challenge. Since exosome-mediated signaling showed great implications in various human diseases, this work may provide a new mechanism for PCBs-associated toxicity.

Environmental Pollution (Oxford, United Kingdom) published new progress about Disease, animal. 6823-69-4 belongs to class imidazoles-derivatives, and the molecular formula is C30H30Cl2N6O2, Recommanded Product: p-Benzenediacrylanilide, 4′,4′′-di-2-imidazolin-2-yl-, dihydrochloride.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Ratitong, Bridget; Marshall, Michaela; Pearlman, Eric published the artcile< Beta-Glucan-stimulated neutrophil secretion of IL-1α is independent of GSDMD and mediated through extracellular vesicles>, Related Products of 6823-69-4, the main research area is beta glucan interleukin neutrophil secretion extracellular vesicle; Dendritic cells; Exosomes; Extracellular vesicles; Gasdermin D; IL-1α; IL-1β; Macrophages; Neutrophils; Pyroptosis; β-glucan.

Neutrophils are an important source of interleukin (IL)-1β and other cytokines because they are recruited to sites of infection and inflammation in high numbers Although secretion of processed, bioactive IL-1β by neutrophils is dependent on NLRP3 and Gasdermin D (GSDMD), IL-1α secretion by neutrophils has not been reported. In this study, we demonstrate that neutrophils produce IL-1α following injection of Aspergillus fumigatus spores that express cell-surface β-glucan. Although IL-1α secretion by lipopolysaccharide (LPS)/ATP-activated macrophages and dendritic cells is GSDMD dependent, IL-1α secretion by β-glucan-stimulated neutrophils occurs independently of GSDMD. Instead, we found that bioactive IL-1α is in exosomes that were isolated from cell-free media of β-glucan-stimulated neutrophils. Further, the exosome inhibitor GW4869 significantly reduces IL-1α in extracellular vesicles (EVs) and total cell-free supernatant. Together, these findings identify neutrophils as a source of IL-1α and demonstrate a role for EVs, specifically exosomes, in neutrophil secretion of bioactive IL-1α.

Cell Reports published new progress about Animal gene, IL1A Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 6823-69-4 belongs to class imidazoles-derivatives, and the molecular formula is C30H30Cl2N6O2, Related Products of 6823-69-4.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Kong, Juanhua; Li, Lixia; Zeng, Qiang; Long, Jinxing; He, Hongyan; Wang, Yingying; Liu, Sijie; Li, Xuehui published the artcile< Production of 4-Ethylphenol from Lignin Depolymerization in a Novel Surfactant-Free Microemulsion Reactor>, HPLC of Formula: 700370-07-6, the main research area is ethylphenol lignin depolymerization surfactant microemulsion reactor.

In order to meet the requirements of sustainable development, the production of aromatic compounds from renewable biomass is of great concern. Herein, a surfactant-free microemulsion (SFME) system composed of n-octane, 2-propanol, and water was explored for the depolymerization of lignin though a hydrogen transfer reaction of 2-propanol with acidic ionic liquids (ILs) as catalysts. Exptl. results show that the phenol monomer yield from bagasse lignin in the SFME system is at least 4 times higher than that in its corresponding water-free binary system, together with a high selectivity for 4-ethylphenol of 67.8%. In particular, the results also reveal that the controllable polarity and large surface area of the SFME and the aggregation of lignin at the SFME surface are key factors in response to the enhanced yields of phenolic monomers through intensive characterizations. Mechanism studies imply that this system tailors mainly the esterified p-coumarate unit in lignin, and 4-ethylphenol is produced by a cascade reaction, involving hydrolysis, decarboxylation, and hydrogenation. Furthermore, this SFME system also exhibits excellent performance for the depolymerization of other herbaceous lignins, yielding 128.1 mg g-1 phenolic monomers with 59.1% 4-ethylphenol selectivity for corncob lignin. It is thus believed that the process intensification by microemulsion can significantly demonstrate unprecedented potential to accomplish highly efficient lignin conversion.

Industrial & Engineering Chemistry Research published new progress about Acidity function, Hammett. 700370-07-6 belongs to class imidazoles-derivatives, and the molecular formula is C6H9ClN2O2, HPLC of Formula: 700370-07-6.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Padmaja, R. D.; Chanda, Kaushik published the artcile< A robust and recyclable ionic liquid-supported copper(II) catalyst for the synthesis of 5-substituted-1H-tetrazoles using microwave irradiation>, Synthetic Route of 700370-07-6, the main research area is substituted tetrazole preparation green chem microwave irradiation; nitrile sodium azide dipolar cycloaddition; ionic liquid supported copper catalyst preparation.

A novel and robust ionic liquid-supported copper(II) catalyst has been developed and explored for the efficient synthesis of 5-substituted-1H-tetrazoles I (R = H, 3-O2N, 4-Br, etc.) using microwave irradiation The ionic liquid-supported catalyst facilitated the efficient isolation of tetrazole products with high purity by simple extraction with organic solvent. Recovered ionic liquid-supported copper(II) catalyst could be recycled for three times for the synthesis of tetrazole products with high purity. This synthetic protocol offers a very clean, convenient, and microwave-assisted environment-friendly method for the efficient synthesis of 5-substituted-1H-tetrazoles with high yield.

Research on Chemical Intermediates published new progress about [3+2] Cycloaddition reaction. 700370-07-6 belongs to class imidazoles-derivatives, and the molecular formula is C6H9ClN2O2, Synthetic Route of 700370-07-6.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Li, Yongtao; Lin, Wenwei; Wright, William C.; Chai, Sergio C.; Wu, Jing; Chen, Taosheng published the artcile< Building a Chemical Toolbox for Human Pregnane X Receptor Research: Discovery of Agonists, Inverse Agonists, and Antagonists Among Analogs Based on the Unique Chemical Scaffold of SPA70>, Synthetic Route of 1003-21-0, the main research area is pregnane X receptor agonist antagonist inverse agonist SPA70 analog.

Pregnane X receptor (PXR) plays roles in detoxification and other physiol. processes. PXR activation may enhance drug metabolism (leading to adverse drug reactions) or inhibit inflammation. Therefore, PXR agonists, antagonists, and inverse agonists may serve as research tools and drug candidates. However, a specific PXR modulator with an associated structure-activity relationship is lacking. Based on the scaffold of specific human PXR (hPXR) antagonist SPA70 (10), we developed 81 SPA70 analogs and evaluated their receptor-binding and cellular activities. Interestingly, analogs with subtle structural differences displayed divergent cellular activities, including agonistic, dual inverse agonistic and antagonistic, antagonistic, and partial agonistic/partial antagonistic activities (as in compounds 111, 10, 97, and 42, resp.). We generated a pharmacophore model that represents 81 SPA70 analogs, and docking models that correlate strong interactions between the compounds and residues in the AF-2 helix with agonistic activity. These compounds are novel chem. tools for studying hPXR.

Journal of Medicinal Chemistry published new progress about Cytotoxicity. 1003-21-0 belongs to class imidazoles-derivatives, and the molecular formula is C4H5BrN2, Synthetic Route of 1003-21-0.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem