Tag: M.W=250-300

Majkutewicz, Irena published the artcile< Dimethyl fumarate: A review of preclinical efficacy in models of neurodegenerative diseases>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is review dimethyl fumarate preclin efficacy neurodegenerative disease; Alzheimer’s disease; Amyotrophic lateral sclerosis; Dimethyl fumarate; Huntington’s disease; Neurodegenerative diseases; Parkinson’s disease.

A review. Di-Me fumarate (DMF) is an antioxidative and anti-inflammatory drug approved for treatment of multiple sclerosis and psoriasis; however, beneficial effects of DMF have also been found in other inflammatory diseases and cancers. DMF is a prodrug that is immediately hydrolyzed to monomethyl fumarate (MMF) in vivo. Both fumarates activate the nuclear factor (erythroid-derived 2)-like 2 (Nrf2) pathway, and Nrf2 is a key transcription factor of the antioxidant response. The immunosuppressive and anti-inflammatory actions of DMF occur through several mechanisms: via inhibition of the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) pathway and by downregulation of aerobic glycolysis and pyroptosis in activated myeloid and lymphoid cells. MMF is also an agonist of hydroxycarboxylic acid receptor 2 (HCAR2). Differences in the strength of effects and mechanisms of action of both fumarates are discussed. The aim of this review was to analyze and compare the neuroprotective, antioxidative and anti-inflammatory effects of DMF and its active metabolite, MMF, in cellular (in vitro) and animal models of neurodegenerative diseases (NDs), other than multiple sclerosis. There are more than twenty studies that currently represent this field. Most of the studies are concerned with cellular or animal models of Alzheimer ‘s disease (AD) and Parkinson ‘s disease (PD), one utilized a mouse model of Huntington ‘s disease (HD) and one clin. trial was carried out with amyotrophic lateral sclerosis (ALS) patients. The discrepancies in the results of the various studies are discussed, and issues requiring further research have been identified.

European Journal of Pharmacology published new progress about Alzheimer disease. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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

Zhang, Zhiyong; Lan, Qing; Yu, Yao; Zhou, Jungang; Lu, Hong published the artcile< Comparative metabolome and transcriptome analyses of the properties of Kluyveromyces marxianus and Saccharomyces yeasts in apple cider fermentation>, Quality Control of 112-63-0, the main research area is Kluyveromyces marxianus Saccharomyces apple cider fermentation metabolome transcriptome analysis; Apple cider; Aroma; Kluyveromyces marxianus; Nonvolatile; Saccharomyces yeasts; Transcriptome.

This study explored the application of Kluyveromyces marxianus and Saccharomyces cerevisiae (com. and wild type) in the alc. fermentation of Fuji apple juice under static conditions. Metabolome analyses revealed that Et esters, including Et hexanoate, Et decanoate, Et octanoate, octanoic acid and decanoic acid, were the dominant components in ciders fermented by the Saccharomyces yeasts. In the K. marxianus ciders, Et acetate, hexyl acetate, Pr acetate and acetic acid were the most abundant volatiles, suggesting that the cider fermented by K. marxianus might have a fruitier smell. Transcriptome analyses were adapted to gain insight into the differential metabolite patterns between K. marxianus and S. cerevisiae during cider fermentation GO and KEGG enrichments revealed that the metabolic pathways of glucose, organic acids and amino acids during cider fermentation were quite different between these two yeasts. The K. marxianus strain exhibited a higher rate of glycolysis and ethanol fermentation than did Saccharomyces yeasts under oxygen-limited conditions. It also reduced the metabolic flux of acetate into acetyl-CoA and then into the TCA cycle, increasing the syntheses of Et acetate and relevant esters, which may affect its cell growth under anaerobic conditions but enriched the taste and variety of aromas in apple cider.

Food Chemistry: Molecular Sciences published new progress about Acids Role: FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Quality Control of 112-63-0.

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

Kim, Soyoun; Liu, Nan; Shestopalov, Alexander A. published the artcile< Contact Printing of Multilayered Thin Films with Shape Memory Polymers>, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is shape memory polymer multilayer thin film transfer printing; adhesion modulation; donor substrate; shape memory polymer; thin-film printing; transfer printing.

This study describes a method for transfer printing microarrays of multilayered organic-inorganic thin films using shape memory printing stamps and microstructured donor substrates. By applying the films on the microstructured donor substrates during phys. vapor deposition and modulating the interfacial adhesion using a shape memory elastomer during printing, this method achieves (1) high lateral and feature-edge resolution and (2) high transfer efficiency from the donor to the receiver substrate. For demonstration, polyurethane-acrylate stamps and silicon/silicon oxide donor substrates were used in the large-area transfer printing of organic-inorganic thin-film stacks with micrometer lateral dimensions and sub-200 nm thickness.

ACS Nano published new progress about Adhesion, physical, interfacial. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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

Andersons, J.; Kirpluks, M.; Cabulis, P.; Kalnins, K.; Cabulis, U. published the artcile< Bio-based rigid high-density polyurethane foams as a structural thermal break material>, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is polyurethane foam thermal break material.

Sustainable development of building industry implies increasing usage of green materials. With this aim and for the intended application as a structural thermal break material, rigid high-d. polyurethane foams have been manufactured using polyols derived from renewable resources – tall oil fatty acids. Thermal conductivity, compressive strength and stiffness of the foams of d. ranging from ca. 100 to 680 kg/m3 have been determined Comparison of the bio-based foams with reference foams derived from petrochem. resources demonstrated similar performance characteristics thus suggesting that bio-based foams can also serve as structural thermal break materials. Anal. models are shown to enable estimation of d. dependence of the thermal and mech. properties of foams using the resp. exptl. determined characteristics of the monolithic polyurethane polymer.

Construction and Building Materials published new progress about Compressive modulus. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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

Baudoux, Jerome; Cahard, Dominique published the artcile< Electrophilic fluorination with N-F reagents>, COA of Formula: C19H34O2, the main research area is review.

A review. The preparation and use of electrophilic fluorinating agents containing the N-F moiety to give a C-f bond is reviewed.

Organic Reactions (Hoboken, NJ, United States) published new progress about Organic synthesis. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, COA of Formula: C19H34O2.

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

Mamedov, Shamkhal; Gadzhiev, F. R.; Rzaev, A. S. published the artcile< Ethers of glycols and their derivatives. LXVII. Synthesis of alkoxymethyl ethers of ο- and p-ethylbenzyl alc>, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is .

By the alk. method there were synthesized several new alkoxy derivatives of the Me ether of ο- and p-ethylbenzyl alc. and the ο- and p-monoethylbenzyl ether of ethylene glycol. To a mixture of ο- and p-ethylbenzyl alc. (16.3 g.), 21.78 g. PhNMe2, and 50 ml. dry Et2O, 24.5 g. α-chloromethyl isoamyl ether was added dropwise, and the mixture stirred and heated 4.5 hrs. at 30-40° and worked up to give 19.32 g. mixture of isopentoxymethyl ethers of ο- and p-ethylbenzyl alc. b5 141-2°, n20D 1.4828, d20 0.9392. Similarly, 9 new alkoxy ether mixtures of general formula ο- and p-EtC6H4CH2OCH2OR were obtained (R, % yield, b.p., n20D, and d20 given): Me, 58.7, b19 127-8°, 1.4972, 0.9877; Et, 60.0, b5 106-7°, 1.4920, 0.9721; iso-Pr, 52.0, b5 113-14°, 1.4857, 0.9523; Pr, 50.0, b5 123-4°, 1.4872, 0.9568; iso-Bu, 59.0, b5 129-30°, 1.4820, 0.9455; Bu, 65.6 b5 135-6°, 1.4840, 0.9483; Am, 60, b5 146-7°, 1.4833, 0.9420; n-C6H13, 66.6, b5 157-8°, 1.4806, 0.9312; and n-C7H15, 59.8, b5 167-8°, 1.4800, 0.9279. To a mixture of 34 g. ethylbenzyl alc., 50 g. acrylonitrile, and 150 ml. dry C6H6 1.5 g. MeONa was added, and the mixture stirred 5 hrs. at 40-50° and worked up to yield 94% mixture (I) of β-cyanoethyl ethers of ο- and p-ethylbenzyl alc., b1 137-8°, n20D 1.5080, d20 1.0108. To 90 g. MeOH saturated with 18 g. HCl 19 g. I was added, and the mixture heated 2 hrs. and worked up to give 48% mixture of β-carbomethoxyethyl ethers of ο- and p-ethylbenzyl alc. (II), b. 133-4°, n20D 1.4970, d20 1.0397. A mixture of 250 ml. MeOH, 13 g. NaOH, 13 ml. H2O, 15 ml. Et2O, and 15.54 g. II was kept 24 hrs., CO2 passed in, and the precipitate worked up to give 67.4% mixture of β-(ο- and p-ethylbenzoxy)propionic acids, b3 178-80°, n20D 1.5185, d20 1.0815. Ethylbenzyl alc. (50 g.) was saturated with gaseous HCHO, dry HCl passed in at 5-10°, and the mixture worked up to give 57% mixture (III) of chloromethyl ο- and p-ethylbenzyl ethers, b2 97-8°, n20D 1.5210, d20 1.0803. To PhONa from 26.5 g. PhOH and 4.6 g. Na, 18.5 g. III was added dropwise, and the mixture stirred and heated 4 hrs. at 50-60° and worked up to give 53% mixture of phenoxymethyl ethers of ο-and p-ethylbenzyl alc., b1 153-5°, n20D 1.5502, d20 1.0530. A mixture of 23.2 g. ethylbenzyl chloride, 37 g. BuOH, and 20 g. powd. NaOH was heated 8 hrs. at 80-90° and worked up to give 76.4% mixture of Bu ο- and p-ethylbenzyl ethers, b. 102-3°, n20D 1.4830, d20 0.9078. Similarly the following ethers of the general formula ο- and p-EtC6H4CH2OR were obtained (R, % yield, b.p., n20D, and d20 given): Pr, 82, b4 92-3°, 1.4910, 0.9178; iso-Bu, 60.0, b4 96-7°, 1.4862, 0.9088; iso-Am, 79.0, b4 108-9°, 1.4834, 0.8998. Am, 80.9, b4 113-14°, 1.4860, 0.9028; n-C6H13, 69.7, b4 128-9°, 1.4855, 0.9008; and n-C7H15, 73.4, b4 141-2°, 1.4850, 0.8981. A mixture of 250 g. ethylene glycol and powdered 100 g. NaOH was heated until the NaOH was dissolved, 154.5 g. ethylbenzyl chloride added dropwise, and the mixture heated with stirring 5 hrs. at 120-30° and worked up to give 52% mixture (IV) of mono ο- and p-ethylbenzyl ethers of ethylene glycol, b2 151-3°, n20D 1.5150, d20 1.0280. A mixture of 18 g. IV, 80.4 g. Ac2O, 50 ml. dry C6H6, and 2 drops H2SO4 was stirred and heated 4 hrs. at 30-40° and worked up to give 65% IV acetate, b2 126-8°, n20D 1.4985, d20 1.0391. To a mixture of 18 g. IV, 18.15 g. PhNMe2, and 50 ml. dry Et2O 18.4 g. chloromethyl Bu ether was added dropwise and the mixture stirred and heated 3 hrs. at 30-40° and worked up to give 51% mixture of ο- and p-ethylbenzyl butoxymethyl ethers of ethylene glycol, b3 157-8°, n20D 1.4809, d20 0.9684. Similarly the following ο- and p-EtC6H4CH2OCH2CH2OCH2OR were obtained (R, % yield, b.p., n20D, and d20 given): Me, 58, b12 156-7°, 1.4912, 1.0105; Et, 54.6, b3 137-9°, 1.4906, 0.9967; iso-Pr, 62.6, b3 147-8°, 1.4827, 0.9772; Pr, 55.5, b3 153-5°, 1.4847, 0.9842. Bu, 71.0, b3 162-3°, 1.4831, 0.9698; iso-Am, 62.8, b3 169-70°, 1.4812, 0.9629, Am, 62.5, b3 175-6°, 1.4821, 0.9659; n-C6H13, 67.7, b3 185-6°, 1.4807, 0.9539; and n-C7H15, 54.0, b3 192-3°, 1.4805, 0.9530.

Azerbaidzhanskii Khimicheskii Zhurnal published new progress about Ethers. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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

Jiang, Hui; Zhang, Xinyu; Yang, Wanping; Li, Meiqi; Wang, Guohua; Luo, Qianqian published the artcile< Ferrostatin-1 ameliorates liver dysfunction via reducing iron in thioacetamide-induced acute liver injury in mice>, Name: Ethyl 3-amino-4-(cyclohexylamino)benzoate, the main research area is ferrostatin1 hepatoprotective agent iron metabolism liver injury; acute liver injury; deferoxamine; ferroportin; ferroptosis inhibitor; iron; thioacetamide; transferrin receptor 1.

Hepatic iron overload always leads to oxidative stress, which has been found to be involved in the progression of liver disease. However, whether iron disorder is involved in acute liver disease and the further mol. mechanisms remain unclear. A mice model of acute liver injury (ALI) was established via i.p. injection of thioacetamide (TAA) (250 mg/kg/day) for 3 consecutive days. Ferrostatin-1 (Fer-1) was administered i.p. (2.5μM/kg/day) starting 3 days before TAA treatment. Deferoxamine (DFO) was i.p. injected (200 mg/kg/day) with TAA treatment for 3 days. We further observed the effect of Fer-1 on TAA model with high-iron diet feeding. ALI was confirmed using histol. examination and liver function activity. Moreover, expressions of iron metabolism and ferroptosis proteins were measured by Western blot anal. The study revealed that the iron accumulation and ferroptosis contributed to TAA-induced ALI pathogenesis. TAA induced prominent inflammation and vacuolar degeneration in the liver as well as liver dysfunction. In addition, protein expression of the cystine/glutamate antiporter SLC7A11 (xCT) and glutathione peroxidase 4 (GPX4) was significantly decreased in the liver, while transferrin receptor 1 (TfR1), ferroportin (Fpn) and light chain of ferritin (Ft-L) expression levels were increased after TAA exposure. As the same efficiency as DFO, pre-administration of Fer-1 significantly decreased TAA-induced alterations in the plasma ALT, AST and LDH levels compared with the TAA group. Moreover, both Fer-1 and DFO suppressed TfR1, Fpn and Ft-L protein expression and decreased iron accumulation, but did not affect xCT or GPX4 expression in the liver. Both Fer-1and DFO prevented hepatic ferroptosis by reducing the iron content in the liver. Furthermore, Fer-1 also reduced iron and reversed liver dysfunction under iron overload conditions. These findings indicate a role of TAA-induced iron accumulation and ferroptosis in the pathogenesis of ALI model. The effect of Fer-1 was consistent with that of DFO, which prevented hepatic ferroptosis by reducing the iron content in the liver. Thus, Fer-1 might be a useful reagent to reverse liver dysfunction and decreasing the iron content of the liver may be a potential therapeutic strategy for ALI.

Frontiers in Pharmacology published new progress about Cystine-glutamate transporter subunit SLC7A11 Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 347174-05-4 belongs to class esters-buliding-blocks, and the molecular formula is C15H22N2O2, Name: Ethyl 3-amino-4-(cyclohexylamino)benzoate.

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

Poole, Joshua; Jasbi, Paniz; Pascual, Agnes S.; North, Sean; Kwatra, Neha; Weissig, Volkmar; Gu, Haiwei; Bottiglieri, Teodoro; Jadavji, Nafisa M. published the artcile< Ischemic Stroke and Dietary Vitamin B12 Deficiency in Old-Aged Females: Impaired Motor Function, Increased Ischemic Damage Size, and Changed Metabolite Profiles in Brain and Cecum Tissue>, Synthetic Route of 112-63-0, the main research area is human ischemic stroke vitamin B12 deficiency brain cecum metabolite; aging; female; ischemic stroke; motor function; vitamin B12.

A vitamin B12 deficiency (vit. B12 def.) is common in the elderly, because of changes in metabolism Clin. studies have reported that a vit. B12 def. results in worse outcome after stroke, and the mechanisms through which a vit. B12 def. changes the brain requires further investigation. This study investigated the role of vit. B12 def. on stroke outcome and mechanisms using aged female mice. Eighteen-month-old females were put on a control or vit. B12 def. diet for 4 wk, after which an ischemic stroke was induced in the sensorimotor cortex. After damage, motor function was measured, the animals were euthanized, and tissues were collected for anal. Vit. B12 def. animals had increased levels of total homocysteine in plasma and liver, and choline levels were also increased in the liver. Vit. B12 def. animals had larger damage volume in brain tissue and more apoptosis. The cecum tissue pathway anal. showed dysfunction in B12 transport. The anal. of mitochondrial metabolomics in brain tissue showed reduced levels of metabolites involved in the TCA cycle in Vit. B12 def. animals. Motor function after stroke was impaired in vit. B12 def. animals. A dietary Vit. B12 def. impairs motor function through increased apoptosis and changes in mitochondrial metabolism in brain tissue.

Nutrients published new progress about Apoptosis. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Synthetic Route of 112-63-0.

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

Han, Fangbin; Lin, Songwen; Liu, Peng; Tao, Jing; Yi, Chongqin; Xu, Heng published the artcile< Synthesis and structure-activity relationships of PI3K/mTOR dual inhibitors from a series of 2-amino-4-methylpyrido[2,3-d]pyrimidine derivatives>, Application of C19H34O2, the main research area is pyridopyrimidine pyridine pyrimidine preparation anticancer antitumor agent; Anti-tumor activity; Dual inhibitor; Mammalian target of rapamycin; Phosphoinositide 3-kinase.

Inhibition of phosphoinositide 3-kinase (PI3K, phosphatidylinositol 3-kinase)/AKT/mammalian target of rapamycin (mTOR) signaling pathway by PI3K/mTOR dual inhibitors provides a promising new approach to the treatment of cancers. Target of rapamycin complex 1 (mTORC1) is a protein complex composed of TOR kinase/FRAP protein and proteins such as Raptor, GGβL, PRAS40 and Deptor (this complex is not associated with CREB-regulated transcription coactivator 1). Target of rapamycin complex 2 (mTORC2) is a protein complex composed of TOR kinase/FRAP protein and proteins such as Rictor, GβL and MAPKAP1 (this complex is not associated with CREB-regulated transcription coactivator 2). In this Letter, the authors have identified structurally novel and potent PI3K/mTOR dual inhibitors from a series of 2-amino-4-methylpyrido[2,3-d]pyrimidine derivatives Their synthesis and structure-activity relationships are reported. The synthesis of the target compounds was achieved by a coupling reaction of 6-bromo-4-methylpyrido[2,3-d]pyrimidin-2-amine with boronic acid reactants and/or aryl bromides. The title compounds thus formed included N-[5-(2-amino-4-methylpyrido[2,3-d]pyrimidin-6-yl)-2-methoxy-3-pyridinyl]-2,4-difluorobenzenesulfonamide and related substances.

Bioorganic & Medicinal Chemistry Letters published new progress about Amides Role: PAC (Pharmacological Activity), SPN (Synthetic Preparation), THU (Therapeutic Use), BIOL (Biological Study), PREP (Preparation), USES (Uses) (pyrido[2,3-d]pyrimidine derivatives). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application of C19H34O2.

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

Fan, Xiaohui; Lin, Heng; Zhao, Jinjin; Mao, Yican; Zhang, Jiaxing; Zhang, Hui published the artcile< Activation of peroxymonosulfate by sewage sludge biochar-based catalyst for efficient removal of bisphenol A: Performance and mechanism>, HPLC of Formula: 112-63-0, the main research area is bisphenol peroxymonosulfate sewage sludge biochar catalytic oxidation wastewater treatment.

Activation of peroxymonosulfate (PMS) for organic-contaminated water remediation is a promising strategy. In this study, a sludge-derived biochar (SBC) was prepared as an efficient and low-cost metal-free catalyst to activate PMS for the abatement of bisphenol A (BPA) in water. The results demonstrate that BPA could be rapidly oxidized by the combination of SBC and PMS. Compared with the slight adsorption (8.1%) by SBC alone and limited direct oxidation (2.4%) by sole PMS, the removal efficiency of BPA was boosted to 94.5% within 60 min in the presence of both SBC and PMS. Active species participating in the rapid elimination of BPA were investigated via both chem. quenching experiment and ESR (EPR) technique. The results indicate that non-radical rather than radical process plays an important role in BPA abatement in the SBC/PMS system. The electron-transfer non-radical process was further verified by the open circuit potential test. It is proposed that PMS is bound to SBC to form a surface reactive complex (SBC-PMS*), which would abstract the electrons from the adsorbed BPA through the conductive carbon tunnel. The present work provides an alternative of controlling waste by waste.

Separation and Purification Technology published new progress about Binding energy. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, HPLC of Formula: 112-63-0.

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