Month: April 2022

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Journal of Labelled Compounds and Radiopharmaceuticals called 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, Author is Herth, Matthias M.; Kramer, Vasko; Roesch, Frank, which mentions a compound: 56621-48-8, SMILESS is OC1=CC=C(N2CCNCC2)C=C1, Molecular C10H14N2O, Product Details of 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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Ether – Wikipedia,
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Application In Synthesis of 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole. Aromatic compounds can be divided into two categories: single heterocycles and fused 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 A simple and sensitive bioanalytical assay for simultaneous determination of omeprazole and its three major metabolites in human blood plasma using RP-HPLC after a simple liquid-liquid extraction procedure. Author is Rezk, Naser L.; Brown, Kevin C.; Kashuba, Angela D. M..

A simple, sensitive and specific reverse-phase high-performance liquid chromatog. (HPLC) assay for the simultaneous quant. determination of omeprazole and its three metabolites in human plasma was developed and validated. This method provides excellent chromatog. resolution and peak shape for the four components and the internal standard within a 17 min run time. The simple extraction method results in a clean base line and relatively high extraction efficiency. The method was validated over the range of 2-2000 ng/mL, with 2.0 ng/mL as the lower limit of quantification. Within- and between-day accuracies for five different concentrations ranged from 95 to 102%, and 95 to 114%, resp. Within- and between-day precision ranged from 1.1 to 6.3% and 0.5 to 6.2%, resp. Simplicity and high throughput make this method suitable for clin. pharmacokinetic studies.

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Ether – Wikipedia,
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Babiak, Peter; Kyslikova, Eva; Stepanek, Vaclav; Valesova, Renata; Palyzova, Andrea; Maresova, Helena; Hajicek, Josef; Kyslik, Pavel published an article about the compound: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole( cas:73590-85-9,SMILESS:CC1=CN=C(CSC2=NC3=CC(OC)=CC=C3N2)C(C)=C1OC ).Category: ethers-buliding-blocks. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:73590-85-9) through the article.

Production of enantiopure esomeprazole by biocatalysis is of great demand by pharmaceutical industry. A Gram-pos. bacterium oxidizing omeprazole sulfide (5-methoxy-2-[((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)thio]-1H-benzoimidazole) to (S)-sulfoxide esomeprazole (S)-5-methoxy-2-[(4-methoxy-3,5-dimethylpyridin-2-yl) methylsulfinyl]-3H-benzoimidazole was isolated from soil polluted with elemental sulfur. The strain exhibited the highest identity with the genus Lysinibacillus and catalyzed oxidation of 1a into enantiopure esomeprazole with conversion of 77% in a stirred bioreactor, fed-batch culture. No consecutive oxidation of (S)-sulfoxide to sulfone was observed during whole-cell catalysis. The unique characteristics of the catalyst provide a solid basis for further improvement and development of sustainable green bioprocess.

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

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole, is researched, Molecular C17H19N3O2S, CAS is 73590-85-9, about Comparative metabolic disposition of oral doses of omeprazole in the dog, rat, and mouse.Category: ethers-buliding-blocks.

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 There is still a lot of research devoted to this compound(SMILES：CC1=CN=C(CSC2=NC3=CC(OC)=CC=C3N2)C(C)=C1OC)Category: ethers-buliding-blocks, and with the development of science, more effects of this compound(73590-85-9) can be discovered.

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

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 4-(Piperazin-1-yl)phenol, is researched, Molecular C10H14N2O, CAS is 56621-48-8, about gem-Bisphosphonate-Ended Group Dendrimers: Design and Gadolinium Complexing Properties, the main research direction is gem bisphosphonate terminated dendrimer gadolinium complex magnetic property; piperazino gem bisphosphonate functionalized gadolinium complex crystal structure.Safety of 4-(Piperazin-1-yl)phenol.

The synthesis of the first gem-bisphosphonate-ended group dendrimers is described using nucleophilic substitution of terminal P(S)Cl2 units of phosphorus dendrimers of generation 1 to 3 with protected aminophenols followed by deprotection of amino groups and Michael addition with vinylidene tetraisopropyl bisphosphonate. These dendrimers were found to act as chelating agents towards Gd ions. Contrary to the phosphonic acids that can introduce bridges between Gd ions, these synthons act as unique chelating agents toward the Gd ions. Furthermore, it appears that the number of Gd ions introduced in the isolated units is equal to the number of gem-bisphosphonate pairs. Eventually, the magnetic measurements demonstrate clearly that the Gd ions are not coordinated to these pairs as isolated ions but that at least some of these ions are bridged through oxygen atoms that are not P=O functions, as shown by the structural determination given in the paper. Studies concerning properties of these Gd dendrimers complexes are under active study. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009).

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

Formula: C10H14N2O. 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 Electrochemical oxidation of 4-(piperazin-1-yl)phenol in the presence of aryl sulfinic acids.

Electrochem. oxidation of 4-(piperazin-1-yl)phenol was studied in the presence of aryl sulfinic acids as nucleophiles in EtOH/H2O mixture (10/90) using cyclic voltammetry and controlled-potential coulometry methods. The electrochem. generated p-quinone-imine participates in Michael type addition reaction with aryl sulfinic acids and via an EC mechanism converts to the new 2-(phenylsulfonyl)-4-(piperazin-1-yl)phenol derivatives The present work led to the development of a facile and environmentally friendly electrochem. method for the synthesis of some new 2-(phenylsulfonyl)-4-(piperazin-1-yl)phenol derivatives under green conditions.

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

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 4-(Piperazin-1-yl)phenol( cas:56621-48-8 ) is researched.Computed Properties of C10H14N2O.Nematollahi, Davood; Momeni, Shima; Khazalpour, Sadegh published the article 《Different strategies in electrochemical synthesis of new mono and di-substituted hydroquinone and benzoquinone》 about this compound( cas:56621-48-8 ) in Electrochimica Acta. Keywords: strategy electrochem synthesis mono di hydroquinone benzoquinone derivative. Let’s learn more about this compound (cas:56621-48-8).

Electrochem. syntheses of 2-indolyl-5-arylsulfonyl-p-benzoquinone derivatives were carried out in two successive oxidation steps. The 1st involves the oxidation of hydroquinone, 4-(piperazin-1-yl)-phenol and 1-(4-(4-hydroxyphenyl)-piperazin-1-yl) ethanone in the presence of arylsulfinic acids as nucleophiles. The authors’ voltammetric data indicate that electrochem. generated p-benzoquinone participates in Michael addition reaction with arylsulfinic acids leading to the 2-(arylsulfonyl) benzene-1,4-diols. The 2nd consists of the oxidation of 2-(arylsulfonyl) benzene-1,4-diols in the presence of 1,2-dimethylindole and the formation of 2-indolyl-5-arylsulfonyl-p-benzoquinone derivatives as the final products. A plausible mechanism for the synthesis of 2-indolyl-5-arylsulfonyl-p-benzoquinone derivatives is also presented.

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

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 Comparative metabolic disposition of oral doses of omeprazole in the dog, rat, and mouse, the main research direction is omeprazole metabolism species.Electric Literature of C17H19N3O2S.

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 There is still a lot of research devoted to this compound(SMILES：CC1=CN=C(CSC2=NC3=CC(OC)=CC=C3N2)C(C)=C1OC)Electric Literature of C17H19N3O2S, and with the development of science, more effects of this compound(73590-85-9) can be discovered.

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

Boix, C.; Ibanez, M.; Sancho, J. V.; Niessen, W. M. A.; Hernandez, F. published the article 《Investigating the presence of omeprazole in waters by liquid chromatography coupled to low and high resolution mass spectrometry: degradation experiments》. Keywords: omeprazole water liquid chromatog mass spectrometry degradation; omeprazole; surface water; time-of-flight mass spectrometry; transformation/degradation products; triple quadrupole mass spectrometry; ultra-high-performance liquid chromatography; urban wastewater.They researched the compound: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole( cas:73590-85-9 ).Recommanded Product: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:73590-85-9) here.

Omeprazole is one of the most consumed pharmaceuticals around the world. However, this compound is scarcely detected in urban wastewater and surface water. The absence of this pharmaceutical in the aquatic ecosystem might be due to its degradation in wastewater treatment plants, as well as in receiving water. Different laboratory-controlled degradation experiments were carried out on surface water to elucidate omeprazole transformation products (TPs). Surface water spiked with omeprazole was subjected to hydrolysis, photo-degradation under both sunlight and UV radiation and chlorination. Analyses by liquid chromatog. coupled to quadrupole time-of-flight mass spectrometry (LC-QTOF MS) permitted identification of ≤17 omeprazole TPs. In a subsequent step, the TPs identified were sought in surface water and urban wastewater by LC-QTOF MS and by LC coupled to tandem mass spectrometry with triple quadrupole. The parent omeprazole was not detected in any of the samples, but 4 TPs were found in several water samples. The most frequently detected compound was OTP 5 (omeprazole sulfide), which might be a reasonable candidate to be included in monitoring programs rather than the parent omeprazole. Copyright pr 2013 John Wiley & Sons, Ltd.

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

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 SuFEx-enabled, chemoselective synthesis of triflates, triflamides and triflimidates, published in 2021, which mentions a compound: 56621-48-8, mainly applied to triflate triflamide triflimidate synthesis click reaction, Application of 56621-48-8.

Sulfur(VI) Fluoride Exchange (SuFEx) chem. has emerged as a next-generation click reaction, designed to assemble functional mols. quickly and modularly. Here, we report the ex situ generation of trifluoromethanesulfonyl fluoride (CF3SO2F) gas in a two chamber system, and its use as a new SuFEx handle to efficiently synthesize triflates and triflamides. This broadly tolerated protocol lends itself to peptide modification or to telescoping into coupling reactions. Moreover, redesigning the SVI-F connector with a S=O → S=NR replacement, furnished the analogous triflimidoyl fluorides as SuFEx electrophiles, which were engaged in the synthesis of rarely reported triflimidate esters. Notably, experiments showed H2O to be the key towards achieving chemoselective trifluoromethanesulfonation of phenols vs. amine groups, a phenomenon best explained-using ab initio metadynamics simulations-by a hydrogen bonded termol. transition state for the CF3SO2F triflylation of amines.

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