Month: April 2022

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 Design, synthesis, and structure-activity relationship studies of novel pleuromutilin derivatives having a piperazine ring, published in 2016, which mentions a compound: 56621-48-8, Name is 4-(Piperazin-1-yl)phenol, Molecular C10H14N2O, COA of Formula: C10H14N2O.

A series of novel pleuromutilin derivatives I (R = 2-MeOC6H4, 3-MeOC6H4, 4-MeOC6H4, 2-MeC6H4, 3-MeC6H4, 4-MeC6H4, 2-HOC6H4, 3-HOC6H4, 4-HOC6H4, 2-NO2C6H4, 3-NO2C6H4, 4-NO2C6H4, 2-ClC6H4, 3-ClC6H4, 4-ClC6H4, Ph, Me), possessing piperazine moieties were synthesized under mild conditions. The in vitro antibacterial activities of these derivatives against Staphylococcus aureus and Escherichia coli were tested by the agar dilution method. Structure-activity relationship studies resulted in compounds 11b (R = 3-MeOC6H4), 13b (R = 3-HOC6H4), and 14a (R = 2-NO2C6H4) with the most potent in vitro antibacterial activity among the series (minimal inhibitory concentration of 0.0625-0.125 μg/mL). The binding of compounds 11b, 13b, and 14a to the E. coli ribosome was investigated by mol. modeling, and it was found that there is a reasonable correlation between the binding free energy and the antibacterial activity.

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Recommanded Product: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole, is researched, Molecular C17H19N3O2S, CAS is 73590-85-9, about Role of CYP3A4 in the regulation of the aryl hydrocarbon receptor by omeprazole sulphide. Author is Gerbal-Chaloin, Sabine; Pichard-Garcia, Lydiane; Fabre, Jean-Michel; Sa-Cunha, Antonio; Poellinger, Lorenz; Maurel, Patrick; Daujat-Chavanieu, Martine.

Cross-talk between nuclear receptors involved in the control of drug metabolism is being increasingly recognized as a source of drug side effects. Omeprazole is a well known activator of the aryl hydrocarbon receptor (AhR). We investigated the regulation of AhR by omeprazole-sulfide, a degradation metabolite of omeprazole, using CYP1A mRNA induction, reporter gene assay, receptor DNA binding, ligand binding, nuclear translocation, trypsin digests, and drug metabolism anal. in mouse Hepa-1c1c7, human HepG2 cells and primary human hepatocytes. Omeprazole-sulfide is a pure antagonist of AhR in Hepa-1c1c7 and HepG2 hepatoma cell lines. In Hepa-1c1c7 cells, omeprazole-sulfide is a ligand of AhR, inhibits AhR activation to a DNA-binding form, induces a specific pattern of AhR trypsin digestion and inhibits AhR nuclear translocation and subsequent degradation in response to 2,3,7,8-tetrachlorodibenzo-p-dioxin. However, in highly differentiated primary human hepatocytes treated with rifampicin an agonist of the pregnane X receptor (PXR), omeprazole-sulfide behaves as an agonist of AhR. Inhibition of drug metabolizing enzymes by ketoconazole restores the antagonist effect of omeprazole-sulfide. Metabolic LC/MS anal. reveals that omeprazole-sulfide (AhR antagonist) is efficiently converted to omeprazole (AhR activator) by cytochrome P 450 CYP3A4, a target gene of PXR, in primary human hepatocytes but not in hepatoma cells in which PXR is not expressed. This report provides the first evidence for a cross-talk between PXR/CYP3A4 and AhR. In addition, it clearly shows that conclusions drawn from experiments carried out in cell lines may lead to erroneous in vivo predictions in man.

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Name: 4-(Piperazin-1-yl)phenol. 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. Compound: 4-(Piperazin-1-yl)phenol, is researched, Molecular C10H14N2O, CAS is 56621-48-8, about Symmetrically substituted zinc phthalocyanine derivatives bearing N-heterocycle moieties. Synthesis and structural analysis investigations.

Zn(II)phthalocyanines bearing N-heterocycle moieties units were synthesized and characterized. Their FTIR spectroscopic data were compared to characterize the studied spectra. Fuzzy C-Means clustering technique was applied to extract some new information about these data. Hay synthesis of sym. substituted Zn phthalocyanine derivatives, [(heteroxy)8ZnPcs] (4a-e) bearing N-heterocycle moieties, i.e. Imidazol, Thiazol, Piperazine and Tetrazol rings, is reported. Their novel heterocycle-oxyphthalonitrile precursors 3a-e were synthesized by the aromatic nucleophilic substitution reaction of 4,5-dichlorophthalonitrile with hetero-substituted phenols 2a-e. The structure of the compounds was revealed by the spectroscopic anal. tools, in addition some hidden similarities of the raw spectra were revealed within the Fuzzy C-Means clustering technique.

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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: 56621-48-8, is researched, SMILESS is OC1=CC=C(N2CCNCC2)C=C1, Molecular C10H14N2OJournal, Monatshefte fuer Chemie called 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, the main research direction is electrophile isulfur nucleophile electrochem oxidation reaction mechanism.Product Details of 56621-48-8.

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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In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Identification of new omeprazole metabolites in wastewaters and surface waters, published in 2014-01-15, which mentions a compound: 73590-85-9, mainly applied to omeprazole metabolite wastewater surface water urine analysis sample pollution; Metabolites; Omeprazole; Time-of-flight mass spectrometry; Triple quadrupole mass spectrometry; Urine; Water samples, Application In Synthesis of 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole.

Omeprazole is 1 of the world-wide most consumed pharmaceuticals for treatment of gastric diseases. As opposed to other frequently used pharmaceuticals, omeprazole is scarcely detected in urban wastewaters and environmental waters. This was corroborated in a previous research, where parent omeprazole was not detected while 4 transformation products (TPs), mainly resulting from hydrolysis, were found in effluent wastewaters and surface waters. However, the low abundance of omeprazole TPs in the H2O samples together with the fact that omeprazole suffers an extensive metabolism, with a wide range of excretion rates (between 0.01 and 30)̂, suggests that human urinary metabolites should be studied in the H2O environment. The results obtained in excretion tests after administration of a 40 mg omeprazole dose in 3 healthy volunteers are reported. Anal. by liquid chromatog. coupled to hybrid quadrupole time-of-flight mass spectrometry (LC-QTOF MS) reported low concentrations of omeprazole in urine. Up to 20-four omeprazole metabolites (OMs) were detected and tentatively elucidated. The most relevant OM was an omeprazole isomer, which obviously presented the same exact mass (m/z 346.1225), but also shared a major common fragment at m/z 198.0589. Subsequent analyses of surface H2O and effluent wastewater samples by both LC-QTOF MS and LC-MS/MS with triple quadrupole revealed that this metabolite (named as OM10) was the compound most frequently detected in H2O samples, followed by OM14a and OM14b. Up to the knowledge, OM10 had not been used before as urinary biomarker of omeprazole in waters. On the contrary, parent omeprazole was never detected in any of the H2O samples. After this research, it seems clear that monitoring the presence of omeprazole in the aquatic environment should be focused on the OMs suggested in this article instead of the parent compound

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The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole, is researched, Molecular C17H19N3O2S, CAS is 73590-85-9, about Chirality in the limelight: Issue, the main research direction is review chiral mol; chrality review.Application In Synthesis of 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole.

A review. The author addresses the features of chiral mols., with special emphasis on current thinking about ways to produce them at scale. Two examples such as oxidation of pyrmetazole to omeprazole and suitability of (S)-Azetidine-2-carboxylic acid for scaling up are given.

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Ether – Wikipedia,
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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 73590-85-9, is researched, Molecular C17H19N3O2S, about High-performance liquid chromatographic assay for human liver microsomal omeprazole metabolism, the main research direction is omeprazole metabolism liver microsome determination HPLC; liquid chromatog omeprazole metabolite liver microsome.Computed Properties of C17H19N3O2S.

Assays for the measurement of omeprazole metabolites in plasma and urine were reported, but when applied to the determination of omeprazole metabolites formed by human liver microsomal incubations, there were obvious limitations in sensitivity. The present HPLC assay, which comprises extraction, evaporation and reconstitution, is several-fold more sensitive with a limit of detection of ∼ 2 pmol (2 nM in incubate) for omeprazole sulfone and 25 pmol (25 nM in incubate) for hydroxyomeprazole. Extraction efficiency is essentially quant. and is highly reproducible (coefficient of variation = 2.1% for both metabolites). The assay is linear over a wide range of concentrations and the formation of the metabolites is linear with respect to both time (to 15 min) and protein concentration (to 1.5 mg/mL). Two minor metabolites, 1 of which was identified tentatively as 5-O-desmethylomeprazole, were also formed by human liver microsomes and could be determined by this method. Preliminary studies of the formation of omeprazole sulfone and hydroxyomeprazole showed that the formation kinetics in human liver microsomes were biphasic for both metabolites, suggesting that at least 2 different cytochrome P 450 isoforms are involved in their formation.

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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 56621-48-8, is researched, Molecular C10H14N2O, about Discovery of novel pyrazole derivatives as a potent anti-inflammatory agent in RAW264.7 cells via inhibition of NF-kB for possible benefit against SARS-CoV-2, the main research direction is pyrazole derivative antiinflammatory severe acute resipiratory syndrome coronavirus docking; NF-ĸB; SARS-CoV-2; docking; inflammation; pyrazole.Formula: C10H14N2O.

Due to unavailability of a specific drug/vaccine to attenuate severe acute respiratory syndrome coronavirus 2, the current strategy to combat the infection has been largely dependent upon the use of anti-inflammatory drugs to control cytokines storm responsible for respiratory depression. Thus, in this study, we discovered novel pyrazole analogs as a potent nuclear factor kappa B (NF-κB) inhibitor. The compounds were assessed for NF-κB transcriptional inhibitory activity in RAW264.7 cells after stimulation with lipopolysaccharides (LPS), revealing Compound 6c as the most potent analog among the tested series. The effect of Compound 6c was further investigated on the levels of interleukin-1β, tumor necrosis factor-α, and interleukin-6 in LPS-stimulated RAW267.4 cells by enzyme immunoassay, where it causes a significant reduction in the level of these cytokines. In Western blot anal., Compound 6c also causes the inhibition of inhibitor kappa B-α and NF-κB. It was found to be snugly fitted into the inner grove of the active site of NF-κB by forming H-bonds and a nonbonded interaction with Asn28 in a docking anal.

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

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, Article, Journal of Pharmacology and Experimental Therapeutics called Oxygen dependence of omeprazole clearance and sulfone and sulfide metabolite formation in the isolated perfused rat liver, Author is Angus, Peter W.; Mihaly, George W.; Morgan, Denis J.; Smallwood, Richard A., the main research direction is omeprazole metabolism liver oxygen dependence.Recommanded Product: 73590-85-9.

This study, in the isolated perfused rat liver, examined the O dependence of the hepatic elimination of omeprazole, a drug which undergoes extensive oxidative metabolism in the rat. The relationship between hepatic O supply and the production of omeprazole’s oxidative sulfone and reductive sulfide metabolites was also examined Rat livers were perfused with a perfusate containing 5 μg omeprazole/mL in a single-pass design. Omeprazole clearance and the formation clearance of the 2 metabolites were measured in each liver during normal oxygenation, at different levels of hypoxia and after reoxygenation. There was a linear relationship between omeprazole clearance and O delivery over the whole range studied. Production of the sulfone was similarly O-dependent whereas the sulfide was detectable only after a significant reduction in oxygenation. In further experiments the O dependence of omeprazole clearance was not altered when the concentration of drug was lowered to 1 μg/mL. This study shows that O delivery is a critical determinant of the rate of oxidative drug metabolism in the isolated liver and supports the contention that reductions in hepatic O supply may alter the hepatic disposition of oxidatively metabolized drugs in vivo.

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Ether – Wikipedia,
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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.Patel, Amit B.; Rohit, Jignesh V. researched the compound: 4-(Piperazin-1-yl)phenol( cas:56621-48-8 ).COA of Formula: C10H14N2O.They published the article 《Development of 1,3,4-Thiadiazole and Piperazine Fused Hybrid Quinazoline Derivatives as Dynamic Antimycobacterial Agents》 about this compound( cas:56621-48-8 ) in Polycyclic Aromatic Compounds. Keywords: phenylpiperazinylmethyl thioxodihydrothiadiazolyl phenylquinazolinyloxy benzonitrile antimycobacterial antitumor SAR. We’ll tell you more about this compound (cas:56621-48-8).

Novel series of 1,3,4-thiadiazole and piperazine substituted quinazoline derivatives I [R = H, Cl, CF3, etc] were designed, synthesized, and tested in vitro for antimycobacterial activity. The synthetic procedure involved Suzuki C-C cross-coupling on a quinazoline ring and subsequently by the formation of 1,3,4-thiadiazole based piperazines. Many synthesized analogs were observed active against Mycobacterium H37Rv strain in preliminary anal. using the BACTEC MGIT method. A secondary antimycobacterial assay using the Lowenstein-Jensen MIC method indicates that I [R = bromo, trifluoromethyl, hydroxy] groups substituted analogs was showed strong efficacy in the range of 3.12-6.25 μg/mL. Active compounds were also tested for their cytotoxic activity against Human cervical (HeLa) cells at their MICs. The synthesized analogs were analyzed by IR, 1H NMR, 13 C NMR, MS, and elemental anal. for their structure determination

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Reference:
Ether – Wikipedia,
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