Month: November 2022

Model System for Antiviral Peptide Transport Characterization was written by Zabrodskaya, Y. A.;Gorshkova, Y. E.;Shyrigina, A.-P. S.;Brodskaya, A. V.;Bobkov, D. E.;Gorshkov, A. N.;Bondarenko, A. B.;Lebedev, D. V.;Egorov, V. V.. And the article was included in Crystallography Reports in 2021.Electric Literature of C37H74NO8P The following contents are mentioned in the article:

Determination of the mechanism of action of potential medicinal substances is an integral stage in development of novel drugs. The interaction of antiviral peptide PB₁₆–₁₄ with lipid membranes in cell and cell-free model systems is demonstrated. Penetration of a fluorescently tagged analog of peptide into cells has been observed for 15 min using continuous-flow cytofluorometry and confocal microscopy. The specific features of interaction of the peptide under study with cell membranes have been studied using small-angle neutron scattering (SANS), at. force microscopy (AFM), and dynamic light scattering. It is shown that model liposomes (PC/PG) increased in size in the presence of peptide (in a 5% ethanol/5% DMSO/PBS buffer), while the ζ potential changed only slightly, which can be interpreted as a consequence of a change in the surface charge and may indicate peptide ability to interact with a lipid bilayer (not excluding its penetration into the membrane). The data obtained can be used both for studying the mechanism of therapeutic peptide transport and for developing drug-delivery agents. This study involved multiple reactions and reactants, such as (2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5Electric Literature of C37H74NO8P).

(2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5) belongs to alcohols. Alcohols are among the most common organic compounds. They are used as sweeteners and in making perfumes, are valuable intermediates in the synthesis of other compounds, and are among the most abundantly produced organic chemicals in industry. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Electric Literature of C37H74NO8P

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Development of a ligand for in vivo imaging of mutant huntingtin in Huntington’s disease was written by Bertoglio, Daniele;Bard, Jonathan;Hessmann, Manuela;Liu, Longbin;Gartner, Annette;De Lombaerde, Stef;Huscher, Britta;Zajicek, Franziska;Miranda, Alan;Peters, Finn;Herrmann, Frank;Schaertl, Sabine;Vasilkovska, Tamara;Brown, Christopher J.;Johnson, Peter D.;Prime, Michael E.;Mills, Matthew R.;Van der Linden, Annemie;Mrzljak, Ladislav;Khetarpal, Vinod;Wang, Yuchuan;Marchionini, Deanna M.;Skinbjerg, Mette;Verhaeghe, Jeroen;Dominguez, Celia;Staelens, Steven;Munoz-Sanjuan, Ignacio. And the article was included in Science Translational Medicine in 2022.COA of Formula: C9H18O5S The following contents are mentioned in the article:

Huntington’s disease (HD) is a dominantly inherited neurodegenerative disorder caused by a CAG trinucleotide expansion in the huntingtin (HTT) gene that encodes the pathol. mutant HTT (mHTT) protein with an expanded polyglutamine (polyQ) tract. Whereas several therapeutic programs targeting mHTT expression have advanced to clin. evaluation, methods to visualize mHTT protein species in the living brain are lacking. Here, we demonstrate the development and characterization of a positron emission tomog. (PET) imaging radioligand with high affinity and selectivity for mHTT aggregates. This small mol. radiolabeled with 11C ([11C]CHDI-180R) allowed noninvasive monitoring of mHTT pathol. in the brain and could track region- and time-dependent suppression of mHTT in response to therapeutic interventions targeting mHTT expression in a rodent model. We further showed that in these animals, therapeutic agents that lowered mHTT in the striatum had a functional restorative effect that could be measured by preservation of striatal imaging markers, enabling a translational path to assess the functional effect of mHTT lowering. This study involved multiple reactions and reactants, such as (2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol (cas: 367-93-1COA of Formula: C9H18O5S).

(2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol (cas: 367-93-1) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.COA of Formula: C9H18O5S

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Characterization of low temperature-induced plasma membrane lipidome remodeling combined with gene expression analysis reveals mechanisms that regulate membrane lipid desaturation in Carica papaya was written by Chen, Mingjie;Liu, Ruiming;Huang, Xiaohui;Du, Zhenghua;Heng, Shuangpin;Zeng, Wei. And the article was included in Scientia Horticulturae (Amsterdam, Netherlands) in 2020.Synthetic Route of C37H74NO8P The following contents are mentioned in the article:

Carica papaya is a cold-sensitive horticultural crop, the mechanisms underlying its cold sensitivity remains unclear which limit its genetic improvements in cold tolerance. In this study, aqueous dextran-polyethylene glycol two-phase partition systems were applied to purify plasma membrane from papaya leaves grown under 28 °C and 10 °C, the plasma membrane total lipids were analyzed by lipidomic approach. Meanwhile, the transcription levels of putative fatty acid desaturases were quantified by RT-qPCR. We found that cerebrosides are dominate plasma membrane lipid species, followed by phospholipids and free sterols. Cold treatment increased the mono-unsaturated and di-unsaturated phospholipids, and decreased di-saturated phospholipids, the proportion of total phospholipids was not affected. Cold stress enhanced the transcription of CpFAD4, CpFAD6 and CpFAB2-2. Pathway anal. suggested that the cold induction of CpFAB2-2 transcription and CpFAD2 enzyme activities play important roles for plasma membrane lipidome remodeling under cold stress. Our findings uncovered potential targets to improve papaya cold tolerance. This study involved multiple reactions and reactants, such as (2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5Synthetic Route of C37H74NO8P).

(2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Synthetic Route of C37H74NO8P

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Metabolomics combined with proteomics provides a novel interpretation of the compound differences among Chinese tea cultivars (Camellia sinensis var. sinensis) with different manufacturing suitabilities was written by Chen, Dan;Sun, Zhen;Gao, Jianjian;Peng, Jiakun;Wang, Zhe;Zhao, Yanni;Lin, Zhi;Dai, Weidong. And the article was included in Food Chemistry in 2022.Recommanded Product: (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol The following contents are mentioned in the article:

Different tea cultivars differ in their manufacturing suitability. In this study, metabolomics and proteomics were applied to investigate the metabolite and protein differences in fresh leaves from 23 Chinese tea cultivars suitable for manufacturing green, white, oolong, and black teas. The combined anal. revealed 115 differential metabolites and significant differences in the biosynthesis pathways for amino acids, phenylpropanoids, flavonoids, and terpenoids, and in the peroxidases abundances among these four groups. Green tea cultivars had higher abundances of amino acids and amino acids biosynthesis-related enzymes but lower abundances of flavanols and flavonoids biosynthesis-related enzymes. Black tea cultivars presented higher abundances of flavanols, flavanol-O-glycosides, flavonoids biosynthesis-related enzymes, and peroxidases. Oolong tea cultivars showed higher abundances of enzymes involved in terpenoids biosynthesis. Our study provides a novel interpretation of the manufacturing suitability of tea cultivars from the perspective of both metabolites and proteins and will be helpful for cultivar breeding. This study involved multiple reactions and reactants, such as (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8Recommanded Product: (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol).

(2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Recommanded Product: (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ultrasound-assisted adsorption/desorption of jujube peel flavonoids using macroporous resins was written by Shen, Dongbei;Labreche, Faiza;Wu, Caie;Fan, Gongjian;Li, Tingting;Dou, Jinfeng;Zhu, Jinpeng. And the article was included in Food Chemistry in 2022.Safety of (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol The following contents are mentioned in the article:

The work explored the process of ultrasound-assisted adsorption/desorption to efficiently purify jujube peel flavonoids (JPFs) using macroporous resins (MRs). The impact of ultrasound power and temperature on the adsorption/desorption features of JPFs on MRs were studied. The maximum adsorption (80.21 ± 2.11 mg/g) /desorption (76.22 ± 1.68 mg/g) capacity of total flavonoids content were obtained. The pseudo-second-order kinetic and Freundlich isotherm models better described the whole process of ultrasound-assisted adsorption. The adsorption process was spontaneous, phys., and dominated by multilinear intraparticle diffusion. Ultrasound mainly enhanced the adsorption capacity by strengthening the formation of hydrogen bonds and increasing the surface roughness of MRs. Besides, the principal individual flavonoid ((+)-Catechin, (-)-Epicatechin, Rutin, Quercetin-3-O-robinobioside) content of JPFs in ultrasound treatment was 2-3 times that of shaking treatment, and biol. activities were significantly increased. Overall, as a low-cost green technol., ultrasound can improve the properties of MRs and better purify JPFs. This study involved multiple reactions and reactants, such as (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8Safety of (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol).

(2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. A multistep synthesis may use Grignard-like reactions to form an alcohol with the desired carbon structure, followed by reactions to convert the hydroxyl group of the alcohol to the desired functionality.Safety of (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Nutrient composition and quality traits of dried jujube fruits in seven producing areas based on metabolomics analysis was written by Shi, Qianqian;Han, Gang;Liu, Yu;Jiang, Junjun;Jia, Yuyao;Li, Xingang. And the article was included in Food Chemistry in 2022.Product Details of 29106-49-8 The following contents are mentioned in the article:

Chinese jujube is a widely cultivated fruit of the Rhamnaceae family. However, there are few reports on the comprehensive evaluation of jujube fruit quality in the main jujube producing areas. Liquid chromatog. tandem-mass spectrometry (LC-MS/MS), principal component anal. (PCA), cluster anal., and ranking score were used to comprehensively evaluate the metabolic traits and quality of 20 dried jujube varieties in the seven main producing areas in China. A total of 29 categories of 463 metabolites were identified and detected; among them, alkaloids, amino acids, flavonoids, and lipids are the main nutrients in dried jujube fruits. An anal. of the content of metabolites in dried jujube fruits from seven producing areas showed that the difference in the fruit quality traits between the producing areas is significant, exhibiting the regional characteristics of the eastern and western regions in North China. In addition, jujube varieties HN-L-L (72 points), XJ-H-Hm (59 points), and XJ-H-Hp (59 points) with the highest scores are rich in nutrients and can be used as raw materials in the development of functional foods. This study involved multiple reactions and reactants, such as (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8Product Details of 29106-49-8).

(2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Product Details of 29106-49-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ultrasound-assisted adsorption/desorption of jujube peel flavonoids using macroporous resins was written by Shen, Dongbei;Labreche, Faiza;Wu, Caie;Fan, Gongjian;Li, Tingting;Dou, Jinfeng;Zhu, Jinpeng. And the article was included in Food Chemistry in 2022.COA of Formula: C20H22O8 The following contents are mentioned in the article:

The work explored the process of ultrasound-assisted adsorption/desorption to efficiently purify jujube peel flavonoids (JPFs) using macroporous resins (MRs). The impact of ultrasound power and temperature on the adsorption/desorption features of JPFs on MRs were studied. The maximum adsorption (80.21 ± 2.11 mg/g) /desorption (76.22 ± 1.68 mg/g) capacity of total flavonoids content were obtained. The pseudo-second-order kinetic and Freundlich isotherm models better described the whole process of ultrasound-assisted adsorption. The adsorption process was spontaneous, phys., and dominated by multilinear intraparticle diffusion. Ultrasound mainly enhanced the adsorption capacity by strengthening the formation of hydrogen bonds and increasing the surface roughness of MRs. Besides, the principal individual flavonoid ((+)-Catechin, (-)-Epicatechin, Rutin, Quercetin-3-O-robinobioside) content of JPFs in ultrasound treatment was 2-3 times that of shaking treatment, and biol. activities were significantly increased. Overall, as a low-cost green technol., ultrasound can improve the properties of MRs and better purify JPFs. This study involved multiple reactions and reactants, such as (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6COA of Formula: C20H22O8).

(2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. A multistep synthesis may use Grignard-like reactions to form an alcohol with the desired carbon structure, followed by reactions to convert the hydroxyl group of the alcohol to the desired functionality.COA of Formula: C20H22O8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Liposome-Assisted Enzymatic Modulation of Plasmonic Photoelectrochemistry for Immunoassay was written by Chen, Feng-Zao;Han, De-Man;Chen, Hong-Yuan. And the article was included in Analytical Chemistry (Washington, DC, United States) in 2020.Recommanded Product: (2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate The following contents are mentioned in the article:

Recently emerged liposomal photoelectrochem. (PEC) bioanal. has brought new opportunities for biosensor development. This work presents the new concept of liposome-assisted enzymic modulation of plasmonic photoelectrochem. for PEC bioanal., which was exemplified by an Au nanoclusters (NCs)-sensitized nanoporous TiO₂ nanotubes (Au NC@TiO₂ NT) photoelectrode and an alk. phosphatase (ALP)-loaded liposomal immunoassay of heart-type fatty acid binding protein in a 96-well plate. After sandwich immunorecognition and subsequent lysis treatment, enzymically generated ascorbic acid by the released ALP was directed to reduce Au³⁺ into Au nanoparticles using the Au NCs as seeds, leading to the in situ change of the photoelectrochem. of the electrode and corresponding reduction of the photocurrent. The depressed signal could be correlated with the target concentration with good anal. performance in terms of sensitivity and selectivity. This work features the liposome-assisted enzymic modulation of plasmonic photoelectrochem., which provides a new protocol for general PEC bioanal. development. This study involved multiple reactions and reactants, such as (2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5Recommanded Product: (2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate).

(2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Recommanded Product: (2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Hydrogenation of Citral to Citronellal Catalyzed by Waste Fluid Catalytic Cracking Catalyst Supported Nickel was written by Huang, Yingying;Qiu, Shiming;Xu, Jianben;Lian, Huan. And the article was included in ACS Omega in 2021.Reference of 106-21-8 The following contents are mentioned in the article:

In this paper, a waste fluid catalytic cracking (FCC) catalyst is used as a carrier to prepare a supported non-noble metal nickel catalyst (Ni/wFCC), which is applied to the selective hydrogenation of citral to citronellal. X-ray powder diffraction, Fourier transform IR spectroscopy, and SEM were used to analyze the structural characteristics of the Ni-loaded sample. The catalyst after loading Ni still maintained a good zeolite structure, and the surface impurities were reduced. The effect of reaction conditions on the Ni/wFCC-catalyzed hydrogenation of citral to citronellal was investigated, and the optimal reaction conditions were obtained as follows: a Ni loading of 20 wt %, a catalyst amount of 5.6%, a hydrogenation temperature of 180°C, a hydrogenation time of 90 min, and a hydrogenation pressure of 3.0 MPa. Under these conditions, the conversion of citral and selectivity of citronellal were 98.5 and 86.6%, resp., indicating that the Ni/wFCC catalyst had strong catalytic activity and selectivity. This research provided new ideas for the recycling of waste FCC catalysts and industrial synthesis of citronellal. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Reference of 106-21-8).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Reference of 106-21-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Cobalt complexes containing salen-type pyridoxal ligand and DMSO for cycloaddition of carbon dioxide to propylene oxide was written by Hwang, Saem;Ryu, Ji Yeon;Jung, Sung Hoo;Park, Hyoung-Ryun;Lee, Junseong. And the article was included in Polyhedron in 2020.Formula: C8H10ClNO3 The following contents are mentioned in the article:

Cobalt complexes containing a salen-type pyridoxal ligand with pyridine were synthesized as a new Co(III) catalytic system for the cycloaddition of carbon dioxide. Two cobalt(III) complexes possessing a salen-type pyridoxyl ligand were synthesized by the reaction of pyridoxal ligands (pyr₂en = (N,N’-bis(pyridoxylideneiminato)ethylene) and pyr₂cy = (N,N’-bis(pyridoxylideneiminato)cyclohexane)) and Co(OAc)₂ and characterized by various anal. methods, including IR spectroscopy and high-resolution mass anal. Single-crystal X-ray crystallog. anal. confirmed that the cobalt pyr₂en complex had a distorted octahedral structure: the tetradentate Schiff base ligand binds the cobalt metal in one plane, and the metal center adopts an octahedral geometry by the addnl. coordination of acetate and DMSO. The synthesized complexes were used as catalysts in the cycloaddition of carbon dioxide (CO₂) to propylene oxide. The catalysts showed high activity for cycloaddition between CO₂ and epoxides, even at a low loading (0.5 mol%), in the presence of various cocatalysts. This study involved multiple reactions and reactants, such as 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5Formula: C8H10ClNO3).

3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Formula: C8H10ClNO3

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts