Category: alcohols-buliding-blocks

Wang, Tongxing published the artcileElucidating direct kinase targets of compound Danshen dropping pills employing archived data and prediction models, Related Products of alcohols-buliding-blocks, the main research area is danshen protein kinase traditional chinese medicine.

Research on direct targets of traditional Chinese medicine (TCM) is the key to study the mechanism and material basis of it, but there is still no effective methods at present. We took Compound Danshen dropping pills (CDDP) as a study case to establish a strategy to identify significant direct targets of TCM. As a result, thirty potential active kinase targets of CDDP were identified. Nine of them had potential dose-dependent effects. In addition, the direct inhibitory effect of CDDP on three kinases, AURKB, MET and PIM1 were observed both on biochem. level and cellular level, which could not only shed light on the mechanisms of action involved in CDDP, but also suggesting the potency of drug repositioning of CDDP. Our results indicated that the research strategy including both in silico models and exptl. validation that we built, were relatively efficient and reliable for direct targets identification for TCM prescription, which will help elucidating the mechanisms of TCM and promoting the modernization of TCM.

Scientific Reports published new progress about Animal gene Role: BSU (Biological Study, Unclassified), PRP (Properties), BIOL (Biological Study) (AURKB). 124-76-5 belongs to class alcohols-buliding-blocks, name is rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, and the molecular formula is C10H18O, Related Products of alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Lu, Grace published the artcileProfiling the N-Glycan Composition of IgG with Lectins and Capillary Nanogel Electrophoresis, Recommanded Product: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is IgG glycan profiling lectin capillary nanogel electrophoresis.

Glycosylated human IgG contains fucosylated biantennary N-glycans with different modifications including N-acetylglucosamine, which bisects the mannose core. Although only a limited number of IgG N-glycan structures are possible, human IgG N-glycans are predominantly biantennary and fucosylated and contain varying levels of α2-6-linked sialic acid, galactose, and bisected N-acetylglucosamine. Monitoring the relative abundance of bisecting N-acetylglucosamine is relevant to physiol. processes. A rapid, inexpensive, and automated method is used to successfully profile N-linked IgG glycans and is suitable to distinguish differences in bisection, galactosylation, and sialylation in N-glycans derived from different sources of human IgG. The separation is facilitated with self-assembled nanogels that also contain a single stationary zone of lectin. When the lectin specificity matches the N-glycan, the peak disappears from the electropherogram, identifying the N-glycan structure. The nanogel electrophoresis generates separation efficiencies of 500 000 plates and resolves the positional isomers of monogalactosylated biantennary N-glycan and the monogalactosylated bisected N-glycan. Aleuria aurantia lectin, Erythrina cristagalli lectin (ECL), Sambucus nigra lectin, and Phaseolus vulgaris Erythroagglutinin (PHA-E) are used to identify fucose, galactose, α2-6-linked sialic acid, and bisected N-acetylglucosamine, resp. Although PHA-E lectin has a strong binding affinity for bisected N-glycans that also contain a terminal galactose on the α1-6-linked mannose branch, this lectin has lower affinity for N-glycans containing terminal galactose and for agalactosylated bisected biantennary N-glycans. The lower affinity to these motifs is observed in the electropherograms as a change in peak width, which when used in conjunction with the results from the ECL lectin authenticates the composition of the agalactosylated bisected biantennary N-glycan. For runs performed at 17°, the precision in migration time and peak area was less than or equal to 0.08 and 4% relative standard deviation, resp. The method is compatible with electrokinetic and hydrodynamic injections, with detection limits of 70 and 300 pM, resp.

Analytical Chemistry (Washington, DC, United States) published new progress about Aleuria aurantia. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Recommanded Product: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Molteni, Raffaella published the artcileOncogene-induced maladaptive activation of trained immunity in the pathogenesis and treatment of Erdheim-Chester disease, Recommanded Product: (S)-2-hydroxysuccinic acid, the main research area is oncogene trained immunity erdheim chester disease.

Trained immunity (TI) is a proinflammatory program induced in monocyte/macrophages upon sensing of specific pathogens and is characterized by immunometabolic and epigenetic changes that enhance cytokine production Maladaptive activation of TI (ie, in the absence of infection) may result in detrimental inflammation and development of disease; however, the exact role and extent of inappropriate activation of TI in the pathogenesis of human diseases is undetermined In this study, we uncovered the oncogene-induced, maladaptive induction of TI in the pathogenesis of a human inflammatory myeloid neoplasm (Erdheim-Chester disease, [ECD]), characterized by the BRAFV600E oncogenic mutation in monocyte/macrophages and excess cytokine production Mechanistically, myeloid cells expressing BRAFV600E exhibit all mol. features of TI: activation of the AKT/mammalian target of rapamycin signaling axis; increased glycolysis, glutaminolysis, and cholesterol synthesis; epigenetic changes on promoters of genes encoding cytokines; and enhanced cytokine production leading to hyperinflammatory responses. In patients with ECD, effective therapeutic strategies combat this maladaptive TI phenotype; in addition, pharmacol. inhibition of immunometabolic changes underlying TI (ie, glycolysis) effectively dampens cytokine production by myeloid cells. This study revealed the deleterious potential of inappropriate activation of TI in the pathogenesis of human inflammatory myeloid neoplasms and the opportunity for inhibition of TI in conditions characterized by maladaptive myeloid-driven inflammation.

Blood published new progress about Cell differentiation. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Recommanded Product: (S)-2-hydroxysuccinic acid.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Allegrezza, Michael L. published the artcileEfficient coupling by oxygen accelerated photocatalyzed thiol-alkyne chemistry, HPLC of Formula: 7575-23-7, the main research area is coupling oxygen accelerated photocatalyzed thiol alkyne chem.

Thiol reactions have gained attention in many areas of chem. research, such as organic small mol. synthesis, polymer synthesis, and bimol. coupling due to the “”click”” chem. characteristics of this process. This work is a study of a novel method of photochem. thiol-alkyne reactions using alkyl halides and an Ir(ppy)3 photocatalyst. This process is shown to lead to rapid reactions and has the benefit of low catalyst and initiator concentrations relative to reagents. Remarkably, this reaction also has an unusual feature of an increased rate in the presence of oxygen, in contrast to many other types of radical processes. Catalyst and initiator concentrations and reaction conditions are varied in order to gain an understanding of the mechanism of this process. This chem. is then applied to the synthesis of hyperbranched polymers and polymer networks to demonstrate potential applications.

Polymer published new progress about Fluorescence. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, HPLC of Formula: 7575-23-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Malathi, R. published the artcileStudy on preliminary phytochemicals and GC-MS analysis of Justicia adhatoda leaves extract, Name: 3-Pentanol, the main research area is Justicia leaf root bark alkaloid flavonoid glycoside coumarin tannin.

Several natural products have been implemented as an alternative health care treatment and in discovery of effective modern drugs. A major focus of natural product chem. has been toward drug design and discovery. Justicia adhatoda is a well-known Indian medicinal plant valued for its pharmacopeia. This plant root, bark, leaf and flower are used to heal several diseases and poisonous bites. The present work was to evaluate the phytochems. and GC-MS anal. of J. adhatoda leaves extracts The extracts were subjected to qual. phytochem. screening using standard procedures. The result showed that the phytochems. present in the extract of J.adhatoda are alkaloids, flavonoids, glycosides, cardiac glycosides, coumarins, hydroxy anthraquinones, tannins, phlobatannins, proteins, xantho protein, steroids and phenols. The GC-MS anal. of acetone extract showed the presence of many secondary metabolites like phytol (0.8%), 9,12,15-octadecatrienoic acid, (Z,Z,Z) (1.6%), butane, 2,2-di-Me (0.21%), pentane, 2,3,3-tri-Me (0.22%), hexathiane (0.08%), and benzenesulfonic acid (0.22%). The diversity of phytochem. present in the plant suggests that J. adhatoda could serve as a source of useful drugs

Journal of Drug Delivery and Therapeutics published new progress about Amino acids Role: PAC (Pharmacological Activity), THU (Therapeutic Use), BIOL (Biological Study), USES (Uses). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Name: 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Miyamoto, Sachiko published the artcileCase of de novo splice site variant in SLC35A2 showing developmental delays, spastic paraplegia, and delayed myelination, Synthetic Route of 59-23-4, the main research area is SLC35A2 spastic paraplegia delayed myelination congenital disorder glycosylation; SLC35A2 ; congenital disorders of glycosylation; delayed myelination; spastic paraplegia; splice site variant.

Background : Congenital disorders of glycosylation (CDGs) are genetic diseases caused by pathogenic variants of genes involved in protein or lipid glycosylation. De novo variants in the SLC35A2 gene, which encodes a UDP-galactose transporter, are responsible for CDGs with an X-linked dominant manner. Common symptoms related to SLC35A2 variants include epilepsy, psychomotor developmental delay, hypotonia, abnormal facial and skeletal features, and various magnetic resonance imaging (MRI) findings. Methods : Whole-exome sequencing was performed on the patient′s DNA, and candidate variants were confirmed by Sanger sequencing cDNA anal. was performed to assess the effect of the splice site variant using peripheral leukocytes. The X-chromosome inactivation pattern was studied using the human androgen receptor assay. Results : We identified a de novo splice site variant in SLC35A2 (NM_005660.2: c.274+1G>A) in a female patient who showed severe developmental delay, spastic paraplegia, mild cerebral atrophy, and delayed myelination on MRI, but no seizures. The variant led to an aberrant splicing resulting in an in-frame 33-bp insertion, which caused an 11-amino acid insertion in the presumptive cytoplasmic loop. X-inactivation pattern was random. Partial loss of galactose and sialic acid of the N-linked glycans of serum transferrin was observed Conclusion : This case would expand the phenotypic spectrum of SLC35A2-related disorders to delayed myelination with spasticity and no seizures.

Molecular Genetics & Genomic Medicine published new progress about Brain atrophy. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Synthetic Route of 59-23-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Mazur, Marcelina published the artcile4′-Methoxyphenacyl-Assisted Synthesis of β-Kdo Glycosides, COA of Formula: C13H19NO3, the main research area is Kdo glycoside stereoselective synthesis anomeric methoxyphenacyl auxiliary group thioglycoside.

3-Deoxy-β-D-manno-oct-2-ulosonic acid (β-Kdo) glycosides are mainly found in capsular polysaccharides and extracellular exopolysaccharides from Gram-neg. bacteria. These compounds have profound biol. implications in immune response and act as virulence factors. We have developed a novel methodol. for the stereoselective synthesis of β-Kdo glycosides via the use of a 4′-methoxyphenacyl (Phen) auxiliary group at the C1 position of a peracetylated β-Kdo thioglycoside. Under the promotion of NIS/AgOTf in acetonitrile, a series of Kdo glycosides was synthesized in good yield and β-selectivity while minimizing the formation of undesirable glycals. Stereoselectivity of the glycosylation was shown to be modulated by various factors such as promotor, solvent, anomeric ratio of donor, nature of acceptor, and Phen substitution. Chemoselective cleavage of the Phen group was performed under the action of Zn/HOAc. DFT calculations together with exptl. results suggested that α-triflate and a six-membered α-spiroPhen are plausible intermediates of the reaction, accounting for the enhanced formation of β-Kdo glycosides. The developed methodol. could be applied to the synthesis of β-Kdo-containing glycans from pathogenic bacteria.

Journal of Organic Chemistry published new progress about Exopolysaccharides Role: NPO (Natural Product Occurrence), BIOL (Biological Study), OCCU (Occurrence) (extracellular). 87905-98-4 belongs to class alcohols-buliding-blocks, name is Benzyl (5-hydroxypentyl)carbamate, and the molecular formula is C13H19NO3, COA of Formula: C13H19NO3.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Feliciano, Patricia R. published the artcileStructural and Biochemical Investigations of the [4Fe-4S] Cluster-Containing Fumarate Hydratase from Leishmania major, Recommanded Product: (S)-2-hydroxysuccinic acid, the main research area is cluster 4Fe4S containing fumarate hydratase Leishmania crystal structure.

Class I fumarate hydratases (FHs) are central metabolic enzymes that use a [4Fe-4S] cluster to catalyze the reversible conversion of fumarate to S-malate. The parasite Leishmania major, which is responsible for leishmaniasis, expresses two class I FH isoforms: mitochondrial LmFH-1 and cytosolic LmFH-2. In this study, we present kinetic characterizations of both LmFH isoforms, present thirteen crystal structures of LmFH-2 variants, and employ site-directed mutagenesis to investigate the enzyme’s mechanism. Our kinetic data confirm that both LmFH-1 and LmFH-2 are susceptible to oxygen-dependent inhibition, with data from crystallog. and ESR spectroscopy showing that oxygen exposure converts an active [4Fe-4S] cluster to an inactive [3Fe-4S] cluster. Our anaerobically-conducted kinetic studies reveal a preference for fumarate over S-malate. Our data further reveal that single alanine substitutions of T467, R421, R471, D135, and H334 decrease kcat 9-fold to 16,000-fold without substantially affecting Km, suggesting that these residues function in catalytic roles. Crystal structures of LmFH-2 variants are consistent with this idea, showing similar bidentate binding to the unique iron of the [4Fe-4S] cluster for substrate S-malate as observed in wild type FH. We further present LmFH-2 structures with substrate fumarate and weak inhibitors succinate and malonate bound in the active site, and the first structure of an LmFH that is substrate-free and inhibitor-free, the latter showing increased mobility of the C-terminal domain. Collectively, these data provide insight into the mol. basis for the reaction catalyzed by LmFHs, enzymes that are potential drug targets against leishmaniasis.

Biochemistry published new progress about Crystal structure. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Recommanded Product: (S)-2-hydroxysuccinic acid.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Bardestani, Raoof published the artcileThe investigation of stoichiometry and kinetics of cerium (IV) solvent extraction from sulfate medium by Cyanex 272 and 301 using single drop column, Recommanded Product: n-Octanol, the main research area is cerium solvent extraction sulfate medium stoichiometry kinetics Cyanex.

In the present study, the solvent extraction of cerium (IV) from sulfate medium was investigated by Cyanex 272 and 301. The main objective was to increase our understanding of the behavior of analogous extractants, but different in donor atom, which were achieved by batch and kinetics investigations. This allows better selection of extractants for similar approaches in future works. The investigation of extraction kinetics using single drop columns provides this work with a simpler approach in term of overall procedure for the separation of cerium ions from aqueous solutions, which allows finding how exptl. conditions control the rate of reaction. The effects of parameters such as pH, extractant concentration, organic to aqueous volume, and temperature were studied under batch conditions. The complete extraction of 200 mg L-1 Ce (IV) at pH of 4 was obtained either by Cyanex 272 or 301 diluted in kerosene. Results shows that regarding the structural substitution of oxygen with sulfur, Cyanex 272 has a better performance in a lower concentration, while Cyanex 301 shows higher extraction percentage at lower pH. The extraction by Cyanex 272 and 301 was exothermic and endothermic, resp. Results of reaction kinetics revealed that by considering the correction of droplets residence time, the rate of extraction either by Cyanex 272 or 301 is independent of the height of the column. Thus, the effects of extractants and cerium concentrations along with the pH of aqueous solution allowed finding the rate of extraction The cerium mass flux increased by droplet diameter, indicating the contribution of mass diffusion in the extraction

Chemical Engineering Research and Design published new progress about Kerosene Role: NUU (Other Use, Unclassified), USES (Uses). 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Recommanded Product: n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Deppermann, Carsten published the artcileMacrophage galactose lectin is critical for Kupffer cells to clear aged platelets, Name: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is AMR galactose lectin hepatocyte macrophage platelet Kupffer cell interaction.

Every day, megakaryocytes produce billions of platelets that circulate for several days and eventually are cleared by the liver. The exact removal mechanism, however, remains unclear. Loss of sialic acid residues is thought to feature in the aging and clearance of platelets. Using state-of-the-art spinning disk intravital microscopy to delineate the different compartments and cells of the mouse liver, we observed rapid accumulation of desialylated platelets predominantly on Kupffer cells, with only a few on endothelial cells and none on hepatocytes. Kupffer cell depletion prevented the removal of aged platelets from circulation. Ashwell-Morell receptor (AMR) deficiency alone had little effect on platelet uptake. Macrophage galactose lectin (MGL) together with AMR mediated clearance of desialylated or cold-stored platelets by Kupffer cells. Effective clearance is critical, as mice with an aged platelet population displayed a bleeding phenotype. Our data provide evidence that the MGL of Kupffer cells plays a significant role in the removal of desialylated platelets through a collaboration with the AMR, thereby maintaining a healthy and functional platelet compartment.

Journal of Experimental Medicine published new progress about Aging, animal. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Name: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts