Month: November 2022

Bazhin, Denis N.; Kudyakova, Yulia S.; Roeschenthaler, Gerd-Volker; Burgart, Yanina V.; Slepukhin, Pavel A.; Isenov, Maksim L.; Saloutin, Victor I.; Charushin, Valery N. published an article in 2015, the title of the article was A Convenient Approach to CF3-Containing N-Heterocycles Based on 2-Methoxy-2-methyl-5-(trifluoromethyl)furan-3(2H)-one.Electric Literature of 707-07-3 And the article contains the following content:

New synthetic routes to trifluoromethylated N-heterocycles based on condensations of 2-methoxy-2-methyl-5-(trifluoromethyl)furan-3(2H)-one with bifunctional N-nucleophiles were described. For the first time, trifluoromethyl-containing pyrazoles, pyrazolines and isoxazolines bearing hydrazone or oxime groups could be obtained by a one-pot strategy based on reactions of 5-(trifluoromethyl)furan-3(2H)-one with two equivalent of the corresponding hydrazines or hydroxylamine in the presence of an acid. The interaction of furan-3(2H)-one with ureas proceeded under mild conditions to furnish 1H-furo[2,3-d]imidazol-2(3H)-one derivatives in good yield. Further, a trifluoromethyl-containing quinoxaline derivative was obtained by condensation of furan-3(2H)-one with ortho-phenylenediamine. The experimental process involved the reaction of (Trimethoxymethyl)benzene(cas: 707-07-3).Electric Literature of 707-07-3

The Article related to methoxy methyltrifluoromethylfuranone nitrogen binucleophile, trifluoromethyl nitrogen heterocyclic preparation regioselective, Heterocyclic Compounds (More Than One Hetero Atom): Triazines and other aspects.Electric Literature of 707-07-3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On October 4, 2022, Wannenmacher, Nick; Heberle, Martin; Yu, Xin; Demircan, Ayseguel; Wanner, Daniel M.; Pfeffer, Camilla; Peters, Rene published an article.Related Products of 517-23-7 The title of the article was Diastereospecific Enantiodivergent Allylation of Pyrazolones as an Entry to β-Aminoamides. And the article contained the following:

A diastereospecific enantiodivergent allylation of pyrazolones I (R1 = n-Pr, H2C:CHCH2, PhCH2, etc.; R2 = Me, i-Pr, Ph; R3 = Ph, PhCH2, 4-MeOC6H4) with allyl imidates R4CH:CHCH2OC(:NH)CCl3 (R4 = Me, n-Pr, PhCH2CH2, MeO2CCH2CH2, PhCH2OCH2CH2), catalyzed by a planar chiral pentaphenylferrocene-based palladacycle, is reported. With the same catalyst, both enantiomeric products II were selectively available from (E)- or (Z)-allyl imidates. The method is applicable to structurally diverse substrates and gave products II with 85-94% enantiomeric excesses. In addition, pyrazolone (S,E)-II (R1 = 4-FC6H4CH2; R2 = Me; R3 = Ph; R4 = PhCH2CH2) was transformed into acyclic β-aminoamide. The experimental process involved the reaction of 3-Acetyldihydrofuran-2(3H)-one(cas: 517-23-7).Related Products of 517-23-7

The Article related to amide amino asym synthesis, allyl pyrazolone asym synthesis oxidative ring opening, pyrazolone enantiodivergent allylation allyl imidate, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazoles and other aspects.Related Products of 517-23-7

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On May 31, 2022, Wang, Shengxuan; Liu, Tingjun; Sun, Lili; Du, Hongxia; Xu, Zhongjin; Li, Ranran; Yu, Ying; Mao, Yongjiang; Shi, Kerong published an article.Application of 2358-84-1 The title of the article was Menin regulates lipid deposition in mouse hepatocytes via interacting with transcription factor FoxO1. And the article contained the following:

Non-alc. fatty liver disease (NAFLD) is rapidly being recognized as the leading cause of chronic liver disease worldwide. Men1, encoding protein of menin, is a key causative gene of multiple endocrine neoplasia type 1 syndrome including pancreatic tumor. It is known that insulin that secretes by endocrine tissue pancreatic islets plays a critical role in hepatic metabolism Mouse model of hemizygous deletion of Men1 was shown to have severe hepatic metabolism disorders. However, the mol. function of menin on lipid deposition in hepatocytes needs to be further studied. Transcriptome sequencing does show that expression suppression of Men1 in mouse hepatocytes widely affect signaling pathways involved in hepatic metabolism, such as fatty acid metabolism, insulin response, glucose metabolism and inflammation. Further mol. studies indicates that menin overexpression inhibits expressions of the fat synthesis genes Srebp-1c, Fas, and Acc1, the fat differentiation genes Pparγ1 and Pparγ2, and the fat transport gene Cd36, thereby inhibiting the fat accumulation in hepatocytes. The biol. process of menin regulating hepatic lipid metabolism was accomplished by interacting with the transcription factor FoxO1, which is also found to be critical for lipid metabolism Moreover, menin responds to insulin in hepatocytes and mediates its regulatory effect on hepatic metabolism Our findings suggest that menin is a crucial mediation factor in regulating the hepatic fat deposition, suggesting it could be a potential important therapeutic target for NAFLD. The experimental process involved the reaction of Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)(cas: 2358-84-1).Application of 2358-84-1

The Article related to menin lipid deposition hepatocyte transcription factor, foxo1, hepatocyte, lipid metabolism, menin, non-alcoholic fatty liver disease (nafld), Mammalian Pathological Biochemistry: Digestive Tract Diseases and other aspects.Application of 2358-84-1

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

de La Torre, Aurelien; Lee, Yiu Yiu; Oger, Camille; Sangild, Per Torp; Durand, Thierry; Lee, Jetty Chung-Yung; Galano, Jean-Marie published an article in 2014, the title of the article was Synthesis, Discovery, and Quantitation of Dihomo-Isofurans: Biomarkers for In Vivo Adrenic Acid Peroxidation.Electric Literature of 707-07-3 And the article contains the following content:

The growing importance of lipidomics, and the interest of non-enzymic metabolites of polyunsaturated fatty acids (PUFAs) prompted us to initiate the synthesis of novel dihomo-IsoF compounds Such metabolites of adrenic acid, the main PUFA in white matter, were synthesized using a divergent approach based on an orthoester cyclization. LC-MS/MS investigation on pig brains showed the potential of this novel biomarker for the first time, as a powerful new tool for brain lipid peroxidation assessment. The experimental process involved the reaction of (Trimethoxymethyl)benzene(cas: 707-07-3).Electric Literature of 707-07-3

The Article related to synthesis discovery quantitation dihomo isofuran biomarker adrenate peroxidation, biomarkers, lipids, mass spectrometry, oxidation, total synthesis, Biochemical Methods: Other (Not Covered At Other Subsections) and other aspects.Electric Literature of 707-07-3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On October 12, 2020, Bacon, Kaitlyn; Blain, Abigail; Burroughs, Matthew; McArthrur, Nikki; Rao, Balaji M.; Menegatti, Stefano published an article.Name: Bis(2,5-dioxopyrrolidin-1-yl) glutarate The title of the article was Isolation of Chemically Cyclized Peptide Binders Using Yeast Surface Display. And the article contained the following:

Cyclic peptides with engineered protein-binding activity have gained increasing attention for use in therapeutic and biotechnol. applications. The authors describe the efficient isolation and characterization of cyclic peptide binders from genetically encoded combinatorial libraries using yeast surface display. Here, peptide cyclization is achieved by disuccinimidyl glutarate-mediated crosslinking of amine groups within a linear peptide sequence that is expressed as a yeast cell surface fusion. Using this approach, the authors first screened a library of cyclic heptapeptides using magnetic selection, followed by fluorescence activated cell sorting (FACS) to isolate binders for a model target (lysozyme) with low micromolar binding affinity (KD ~1.2-3.7μM). The isolated peptides bind lysozyme selectively and only when cyclized. Importantly, yeast surface displayed cyclic peptides can be used to efficiently obtain quant. estimates of binding affinity, circumventing the need for chem. synthesis of the selected peptides. Subsequently, to demonstrate broader applicability of the authors’ approach, the authors isolated cyclic heptapeptides that bind human interleukin-17 (IL-17) using yeast-displayed IL-17 as a target for magnetic selection, followed by FACS using recombinant IL-17. Mol. docking simulations and follow-up exptl. analyses identified a candidate cyclic peptide that likely binds IL-17 in its receptor binding region with moderate apparent affinity (KD ~300 nM). Taken together, the authors’ results show that yeast surface display can be used to efficiently isolate and characterize cyclic peptides generated by chem. modification from combinatorial libraries. The experimental process involved the reaction of Bis(2,5-dioxopyrrolidin-1-yl) glutarate(cas: 79642-50-5).Name: Bis(2,5-dioxopyrrolidin-1-yl) glutarate

The Article related to cyclized peptide binder yeast surface display, affinity ligands, cyclic peptides, interleukin-17 (il-17), library screening, yeast-display libraries, Biochemical Methods: Other (Not Covered At Other Subsections) and other aspects.Name: Bis(2,5-dioxopyrrolidin-1-yl) glutarate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Corbille, Anne-Gaelle; Neunlist, Michel; Derkinderen, Pascal published an article in 2016, the title of the article was Cross-linking for the analysis of α-synuclein in the enteric nervous system.Quality Control of Bis(2,5-dioxopyrrolidin-1-yl) glutarate And the article contains the following content:

Since the observation that aggregated α-synuclein, the pathol. hallmark of Parkinson’s disease (PD), is found in the gut in almost all patients, it has been suggested that the enteric nervous system (ENS) could be a starting point for α-synuclein pathol. α-synuclein has long been thought to occur as a monomer in living cells, but recent studies reported that it instead exists as a tetramer in non-neuronal cells and in neurons. Given the possible key role of the ENS in PD pathophysiol., we undertook the current research to characterize the native state of α-synuclein in rat primary culture of ENS and in adult human healthy ENS. Using amine-reactive crosslinking, we showed that, by contrast to cell lines and brain neurons, α-synuclein exists primarily as a monomer in intact enteric neurons, suggesting that the native state of α-synuclein is different between the ENS and the brain. Our results provide new insights into the widely discussed concepts of α-synuclein aggregation and misfolding in PD and raise issue about the possible transmission of α-synuclein from the ENS to the brain. Aggregated α-synuclein is found in the gut in almost all Parkinson’s disease patients. We used amine-reactive crosslinking to study the native state of α-synuclein in the enteric nervous system (ENS). We showed that, by contrast to erythroid cells and brain neurons, α-synuclein exists primarily as a monomer in intact enteric neurons. Our results provide new insights into the possible role of the ENS in the pathophysiol. of Parkinson’s disease. The experimental process involved the reaction of Bis(2,5-dioxopyrrolidin-1-yl) glutarate(cas: 79642-50-5).Quality Control of Bis(2,5-dioxopyrrolidin-1-yl) glutarate

The Article related to synuclein analysis crosslinking enteric nervous system brain human parkinson, parkinson’s disease, cross-linking, enteric nervous system, α-synuclein, Biochemical Methods: Other (Not Covered At Other Subsections) and other aspects.Quality Control of Bis(2,5-dioxopyrrolidin-1-yl) glutarate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On November 1, 2015, Kukacka, Zdenek; Rosulek, Michal; Strohalm, Martin; Kavan, Daniel; Novak, Petr published an article.Application of 79642-50-5 The title of the article was Mapping protein structural changes by quantitative cross-linking. And the article contained the following:

Chem. crosslinking is a promising technol. for protein tertiary structure determination Though the data has low spatial resolution, it is possible to obtain it at physiol. conditions on proteins that are not amenable to standard high resolution techniques such as X-ray, NMR anal. and cryo-EM. Here we demonstrate the utilization of isotopically labeled chem. crosslinking to visualize protein conformation rearrangements. Since calmodulin exists in two distinct conformations (calcium-free and calcium-containing forms), we selected this protein for testing the potential and the limits of a new technique. After crosslinking of both calmodulin forms, the calcium-free and calcium-containing forms were mixed together and digested under different conditions and the products of proteolysis were monitored using high resolution mass spectrometry. Finally, the ratios of heavy/light cross-links were calculated by mMass open source platform. The experimental process involved the reaction of Bis(2,5-dioxopyrrolidin-1-yl) glutarate(cas: 79642-50-5).Application of 79642-50-5

The Article related to protein mapping structural change quant cross linking, chemical cross-linking, mass spectrometry, protein structure design, proteolysis, quantification, Biochemical Methods: Other (Not Covered At Other Subsections) and other aspects.Application of 79642-50-5

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On June 16, 2011, Bollu, Venkataiah; Boren, Brant Clayton; Dalgard, Jackline; Flatt, Brenton T.; Haq, Nadia; Hudson, Sarah; Mohan, Raju; Morrissey, Michael; Pratt, Benjamin published a patent.Safety of Ethyl 3-fluoro-4-methylbenzoate The title of the patent was Azole compounds as TGR5 agonists and their preparation. And the patent contained the following:

The invention relates to TGR5 agonists of structural formula I, pharmaceutically acceptable salts thereof, compositions thereof, and use of the compounds and compositions for treating diseases. The invention also comprises use of the compounds in and for the manufacture of medicaments, particularly for treating diseases. Compounds of formula I wherein X is N and CR4; R1 is Rc; X can be CRc when R1 is (un)substituted phenyl; Rc is (un)substituted Ph, C5-6 cycloalkyl, CH2-Ph, heteroaryl, etc.; R2 is (CR2)p-Y-(CR2)q-Rd; p and q are independently 0 and 1; each R is independently H, C1-3 alkyl, halo, OH and CH2OH; Y is bond, S, SO2, CHOH, O, etc.; Rd is (un)substituted C6-10 aryl, (un)substituted NH-Ph, (un)substituted cycloalkyl, etc.; R5 is C(R8)2-Ph, C(R8)2-naphthalenyl, (un)substituted C(R8)2-heteroaryl; each R8 is independently H, halo and Me; both R8 is taken together to form C3-6 cycloalkyl and 3- to 6-membered heterocycloalkyl; and pharmaceutically acceptable salts thereof, are claimed. Example compound II was prepared by amidation of 3-chloro-4-((5-(2-(4-chloro-3-methoxyphenyl)propan-2-yl)-1-(4-fluorophenyl)-1H-imidazol-2-ylthio)methyl)-5-fluorobenzoic acid with (2-aminoethyl)trimethylammonium chloride hydrochloride. All the invention compounds were evaluated for their TGR5 agonistic activity. From the assay, it was determined that compound II exhibited EC50 values of < 100 nM. The experimental process involved the reaction of Ethyl 3-fluoro-4-methylbenzoate(cas: 86239-00-1).Safety of Ethyl 3-fluoro-4-methylbenzoate

The Article related to azole preparation tgr5 agonist, Heterocyclic Compounds (More Than One Hetero Atom): Imidazoles and other aspects.Safety of Ethyl 3-fluoro-4-methylbenzoate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Chen, Yi; Inam, Ullah; Wang, Jian published an article in 2018, the title of the article was A study on the antioxidant activity of volatile oil from the Citri Reticulatae Pericarpium and Citri Reticulatae Pericarpium Viride of Citrus Reticulata ‘Dahongpao’.HPLC of Formula: 85-91-6 And the article contains the following content:

To study the antioxidant activity of volatile oil and its separated parts from the peel collected in different time of Citrus reticulata ‘Dahongpao’ such as Citri Reticulatae Pericarpium (CRP) and Citri Reticulatae Pericarpium Viride (CRPV) and Fructus Citri Immaturus (FCI), and nine representative constituents of essential oil from the peel of C. reticulata Blanco. Methods: The volatile oil and its separated parts and 9 characteristic constituents were tested the antioxidant activity by using the method as FRAP (ferric reducing/antioxidant power) and ABTS (2, 2′-azino-bis (3-ethylbenzthiozoline-6)-sulfonic acid), resp. Results: The antioxidant activity value of the volatile oil and its separated parts and 9 representative components were obtained by the method as FRAP and ABTS. Conclusion: The volatile oil and its separated parts and 9 representative constituents have the antioxidant activity in some degree. The antioxidant activities of the volatile oil from the peel collected in different time of C. reticulata ‘Dahongpao’ is listed as the following sequence: FCI=CRPV=CRP. The experimental process involved the reaction of Methyl N-Methylanthranilate(cas: 85-91-6).HPLC of Formula: 85-91-6

The Article related to citrus peel volatile oil antioxidant, Food and Feed Chemistry: Fruits, Vegetables, Legumes, and Nuts and other aspects.HPLC of Formula: 85-91-6

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On December 31, 2019, Wei, Ping; Guo, Ze-Wang; Wu, Xiao-Ling; Liang, Shan; Ou, Xiao-Yang; Xu, Pei; Zong, Min-Hua; Yang, Ji-Guo; Lou, Wen-Yong published an article.Safety of (R)-Methyl 3-hydroxybutanoate The title of the article was Significantly enhancing the biocatalytic synthesis of chiral alcohols by semi-rationally engineering an anti-Prelog carbonyl reductase from Acetobacter sp. CCTCC M209061. And the article contained the following:

Chiral alcs. and their derivatives are vital building blocks to synthesize pharmaceutical drugs and high-valued chems. Wild-type carbonyl reductase AcCR from Acetobacter sp. has ideal enantioselectivity toward 11 prochiral substrates (e.e.>99%) but poor activity. In this work, a semi-rational engineering was performed to enhance the activity of AcCR. Fortunately, three pos. double-mutants (mut-E144A/G152L, mut-G152L/Y189 N, and mut-I147 V/G152L) with specific activity 17-61 folds higher than that of enzyme without modified were achieved. Kinetic studies suggested that the catalytic efficiencies (kcat/Km) of these mutants were also well enhanced. Finally, these modified mut-AcCRs were successfully applied in asym. reductions of 11 structurally diverse prochiral substrates (200 mM) with excellent product yields (76.8%-99.1%) and enantiomeric excess (e.e.>99%), which provides an alternative strategy for efficient synthesis of chiral alcs. for pharmaceuticals industry with ideal yield and enantioselectivity. The experimental process involved the reaction of (R)-Methyl 3-hydroxybutanoate(cas: 3976-69-0).Safety of (R)-Methyl 3-hydroxybutanoate

The Article related to carbonyl reductase chiral alc synthesis, Fermentation and Bioindustrial Chemistry: Industrial Chemicals and other aspects.Safety of (R)-Methyl 3-hydroxybutanoate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics