Month: April 2022

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Trivedi, Harshal K.; Patel, Mukesh C. researched the compound: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole( cas:73590-85-9 ).Application In Synthesis of 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole.They published the article 《Development and validation of a precise single HPLC method for determination of omeprazole and its related compound in pharmaceutical formulation》 about this compound( cas:73590-85-9 ) in International Journal of ChemTech Research. Keywords: omeprazole determination impurity reversed phase HPLC. We’ll tell you more about this compound (cas:73590-85-9).

A simple reversed-phase high performance liquid chromatog. was developed and employed for the determination of omeprazole and its related substances in bulk material and com. dosage forms. A gradient elution of filtered sample was performed on Zorbax XDB C8 (150 × 4.6), 5μ column with Glacine buffer (pH-8.8) as a mobile phase-A, Acetonitrile : Methanol (83:17) as a mobile phase-B and UV detection at 302 nm. Mobile phase was delivered at flow of 1.2 mL/min and at maintaining the column temperature at 25°C, quantification was achieved with reference to the external standards The active ingredient – omeprazole was successfully separated from its all related substances, including process impurities and other possible impurities of oxidation and decomposition The excipients did not interfere with the determination of omeprazole and its related compound in com. dosage formulations. The method was rapid, simple, accurate and reproducible. It was not only successfully employed for the assay of omeprazole in bulk material and pharmaceutical dosage forms but also for the determination of its related substances. A statistical design of experiments was used for the robustness evaluation of HPLC anal. method. All results were acceptable and confirmed that the method is suitable for its intended use.

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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 4-(Piperazin-1-yl)phenol(SMILESS: OC1=CC=C(N2CCNCC2)C=C1,cas:56621-48-8) is researched.Computed Properties of C10H14N2O. The article 《Synthesis of novel WAY 100635 derivatives containing a norbornene group and radiofluorination of [18F]AH1.MZ as a serotonin 5-HT1A receptor antagonist for molecular imaging》 in relation to this compound, is published in Journal of Labelled Compounds and Radiopharmaceuticals. Let’s take a look at the latest research on this compound (cas:56621-48-8).

5-HT1A receptors are involved in a variety of psychiatric disorders and in vivo mol. imaging of the 5-HT1A status represents an important approach to analyze and treat these disorders. We report herein the synthesis of three new fluoroethylated 5-HT1A ligands (AH1.MZ, AH2.MZ and AH3.MZ) as arylpiperazine derivatives containing a norbornene group. AH1.MZ (Ki = 4.2 nM) and AH2.MZ (Ki = 30 nM) showed reasonable in vitro affinities to the 5-HT1A receptor, whereas AH3.MZ appeared to be non-affine toward the 5-HT1A receptor. The receptor profile of AH1.MZ and AH2.MZ showed selectivity within the 5-HT system. 18F-labeling via [18F]FETos to [18F]AH1.MZ was carried out in radiochem. yields of > 70%. The final formulation of injectable solutions including [18F]FETos synthon synthesis, radiosynthesis and semipreparative high-performance liquid chromatog. (HPLC) separation took no longer than 130 min and provided [18F]AH1.MZ with a purity of >98% as indicated by anal. HPLC analyses.

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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 4-(Piperazin-1-yl)phenol(SMILESS: OC1=CC=C(N2CCNCC2)C=C1,cas:56621-48-8) is researched.Formula: C8H9ClN2OS. The article 《Targeting DNA Repair in Tumor Cells via Inhibition of ERCC1-XPF》 in relation to this compound, is published in Journal of Medicinal Chemistry. Let’s take a look at the latest research on this compound (cas:56621-48-8).

The ERCC1-XPF heterodimer is a 5′-3′ structure-specific endonuclease, which plays an essential role in several DNA repair pathways in mammalian cells. ERCC1-XPF is primarily involved in the repair of chem. induced helix-distorting and bulky DNA lesions, such as cyclobutane pyrimidine dimers (CPDs), and DNA interstrand cross-links. Inhibition of ERCC1-XPF has been shown to potentiate cytotoxicity of platinum-based drugs and cyclophosphamide in cancer cells. In this study, the previously described ERCC1-XPF inhibitor 4-((6-chloro-2-methoxyacridin-9-yl)amino)-2-((4-methylpiperazin-1-yl)methyl)phenol (compound 1) was used as a reference compound Following the outcome of docking-based virtual screening (VS), we synthesized seven novel derivatives of 1 that were identified in silico as being likely to have high binding affinity for the ERCC1-XPF heterodimerization interface by interacting with the XPF double helix-hairpin-helix (HhH2) domain. Two of the new compounds, 4-((6-chloro-2-methoxyacridin-9-yl)amino)-2-((4-cyclohexylpiperazin-1-yl)methyl)phenol (compound 3) and 4-((6-chloro-2-methoxyacridin-9-yl)amino)-2-((4-(2-(dimethylamino)ethyl) piperazin-1-yl) methyl) phenol (compound 4), were shown to be potent inhibitors of ERCC1-XPF activity in vitro. Compound 4 showed significant inhibition of the removal of CPDs in UV-irradiated cells and the capacity to sensitize colorectal cancer cells to UV radiation and cyclophosphamide.

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Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 73590-85-9, is researched, SMILESS is CC1=CN=C(CSC2=NC3=CC(OC)=CC=C3N2)C(C)=C1OC, Molecular C17H19N3O2SJournal, Education in Chemistry (London, United Kingdom) called A blockbuster synthesis for undergraduates, Author is Parsons, Andrew F., the main research direction is undergraduate education esomeprazole laboratory synthesis.Category: ethers-buliding-blocks.

A context-based practical designed to give students the opportunity to improve their team working, communication and time-management skills was developed. By investigating the synthesis of the major antiulcer drug, esomeprazole, undergraduates are given an insight into the challenges of modern process chem., from optimization of the lead compound to its full-scale manufacture Students work as a team to prepare pyrmetazole from pyrmethyl alc. and then investigate the reaction conditions required to optimize the asym. oxidation of the sulfide group in pyrmetazole to form esomeprazole. Students do a series of small-scale oxidation reactions, using reagents and reaction conditions of their choice, to investigate how the conditions affect the efficiency of the oxidation They are required to plan their experiments to maximize the number of results they achieve over the eight-day period of the project and then provide a summary of their results and describe aspects of scaling-up their optimized reaction in individual reports, which are assessed. Their results are reviewed and compared with the current industrial process.

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Ether – Wikipedia,
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Application In Synthesis of 4-(Piperazin-1-yl)phenol. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 4-(Piperazin-1-yl)phenol, is researched, Molecular C10H14N2O, CAS is 56621-48-8, about Design and development of 1,3,5-triazine derivatives as protective agent against spinal cord injury in rat via inhibition of NF-kB. Author is Guan, Binggang; Jiang, Chang.

Spinal cord injury (SCI) is a chronic disease causing motor and sensory loss in the affected individuals. The SCI has a huge impact on the lives of patients that makes them susceptible to life-long disability. However, the current clin. modalities are ineffective to cope the aftermath of SCI. Thus, in the present study, we aimed to develop a series of 1,3,5-triazine derivatives I (R = Cl, Br, Me, O2N, HO, MeO) as a protective agent against SCI. The mols. were developed by facile synthetic route and obtained in excellent yield. The compounds were tested for their efficacy to inhibit the transcription of NF-κB in RAW 264.7 cells, where they displayed mild to potent activity. I (R = Cl) was identified as most potent NF-κB inhibitor among the tested analogs. The effect of I (R = Cl) was further scrutinized against the SCI injury in rats induced by contusion injury. It has been found that I (R = Cl) improves motor function of rats together with reduction in inflammation and edema in spinal cord of rats. It also showed to inhibit oxidative stress and inflammation in the SCI rats. In a western blot anal., after SCI induction, I (R = Cl) inhibited NF-κB and its upstream regulator TLR4 in a dose-dependent manner. Collectively, our study provides a novel class of agent that provide protective action against SCI.

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Ether – Wikipedia,
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HPLC of Formula: 73590-85-9. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole, is researched, Molecular C17H19N3O2S, CAS is 73590-85-9, about Microbiological production of omeprazole metabolites by Cunninghamella elegans. Author is Pearce, Clive M.; Lushnikova, Marina V..

Incubation of Cunninghamella elegans ATCC 9245 and the anti ulcer drug omeprazole allowed putative fungal metabolites to be isolated in sufficient quantities for structural elucidation. Three metabolites produced by the fungi were isolated using semi-preparative HPLC and their structures identified by a combination of LC/MS(n) and NMR experiments These isolates will be used as reference standards in the confirmatory anal. of mammalian metabolites of this drug.

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Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Application of 56621-48-8. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 4-(Piperazin-1-yl)phenol, is researched, Molecular C10H14N2O, CAS is 56621-48-8, about Dependence of mechanisms to thermodynamics in the electrochemical study of different electrophiles in the presence of some sulfur nucleophiles. Author is Beiginejad, Hadi; Rafiee, Zeinab.

Abstract: Electrochem. study of different electrophiles in the presence of p-toluenesulfinic acid and 2-mercaptobenzothiazole as sulfur nucleophiles was investigated. Mechanistic study of the electrochem. reactions indicates that the electrochem. oxidation of some species in the presence of the sulfur groups has different mechanisms, but some other species in the presence of both sulfur nucleophiles have the same mechanism. To explain the reason for this difference, the computational study was used. Thermodn. investigation shows that when ΔGtot of the electrochem. oxidation of products are less than that of initial species, the electrochem. produced species can be oxidized during controlled-potential coulometry. The results of this work indicate that the computational study can be used to justify the reaction mechanisms. Cyclic voltammetry, linear sweep voltammetry, and controlled-potential coulometry were used to obtain the exptl. results. Also, by the use of BP86 level of theory and 6-31 + G(d,p) basis set, the theor. data were obtained.

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Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 4-(Piperazin-1-yl)phenol(SMILESS: OC1=CC=C(N2CCNCC2)C=C1,cas:56621-48-8) is researched.Category: ethers-buliding-blocks. The article 《Design, synthesis and antibacterial evaluation of novel pleuromutilin derivatives possessing piperazine linker》 in relation to this compound, is published in European Journal of Medicinal Chemistry. Let’s take a look at the latest research on this compound (cas:56621-48-8).

A series of pleuromutilin derivatives bearing piperazine ring have been reported. The in vitro antibacterial activities of the synthetic derivatives against MRSA (ATCC 43300), Staphylococcus aureus (ATCC 29213), Enterococcus faecalis (ATCC 29212), Enterococcus faecium (ATCC35667) and Escherichia coli (ATCC25922) were evaluated by the broth dilution method. Most of the synthesized derivatives displayed potent activities. Compounds 11c, 12a and 12c were found to be the most active antibacterial derivatives against MRSA (min. inhibitory concentration = 0.015 μg/mL). The binding of compounds 11c, 12a and 12c (I – III, resp.) to the 50s ribosome were investigated by mol. modeling. Compound 11c possessed lower binding free energy compared with compounds 12a and 12c. Compound 11c was further evaluated in MRSA systemic infection model and displayed superior in vivo efficacy to that of tiamulin.

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Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Category: ethers-buliding-blocks. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 1-Methyl-3-(thiophen-2-yl)-1H-pyrazol-5-amine, is researched, Molecular C8H9N3S, CAS is 118430-78-7, about 5-Aminopyrazoles as Dienophiles in the Inverse Electron Demand Diels-Alder Reactions of 2,4,6-Tris(ethoxycarbonyl)-1,3,5-triazine: Syntheses of Pyrazolopyrimidines. Author is Dang, Qun; Brown, Brian S.; Erion, Mark D..

[4 + 2] Cycloaddition reactions of 2,4,6-tris(ethoxycarbonyl)-1,3,5-triazine with 5-aminopyrazoles are reported. This methodol. is suitable for the one-step synthesis of highly substituted pyrazolo[3,4-d]pyrimidines.

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Ether – Wikipedia,
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In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Comparative metabolic disposition of oral doses of omeprazole in the dog, rat, and mouse, published in 1986-06-30, which mentions a compound: 73590-85-9, Name is 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole, Molecular C17H19N3O2S, HPLC of Formula: 73590-85-9.

The metabolic disposition of 14C-labeled omeprazole  [73590-58-6] was studied in dogs, rats, and mice after the administration of pharmacol. active, single oral doses of drug in buffer solutions (pH 9). Averages of 38% (dogs), 43% (rats), and 55% (mice) of the radiolabeled doses were excreted in the urine in 72 h. Most of the remaining dose was recovered in the feces. Omeprazole was extensively metabolized in all species studied and the metabolites were eliminated rapidly. No unchanged drug could be detected in the urine samples (<0.1% of dose). In each species at least 10 metabolites were detected in urine (pH 9) by gradient elution reverse phase HPLC. Based on liquid chromatog. retention data, the metabolic patterns were very complex and exhibited some quant. differences between species. Bile was collected from rats and from chronic bile-fistulated dogs. Biliary excretion was a major route of elimination of omeprazole metabolites, and four polar metabolites were detected in the rat bile. The stability of omeprazole metabolites at varying pH values is discussed with reference to reductive metabolism of the parent compound Here is just a brief introduction to this compound(73590-85-9)HPLC of Formula: 73590-85-9, more information about the compound(5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole) is in the article, you can click the link below.

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Ether – Wikipedia,
Ether | (C2H5)2O – PubChem