Tag: M.W=250-300

Renaud, Roger N.; Champagne, Philippe J. published the artcile< Electrochemical oxidation of trifluoroacetic acid in an organic substrate. III. In the presence of substituted malonic acid half esters and unsaturated carboxylic acid esters>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is electrochem oxidation trifluoroacetate; fluoroacetate oxidation malonate ester; acetate trifluoro electrochem oxidation; ester unsaturated oxidation trifluoroacetate.

The electrochem. oxidation of substituted malonic acid half esters was studied in the presence of F3CCO2H. Some crossed Kolbe products were obtained together with some unsaturated carboalkoxy compounds, trifluoromethylated adducts to the double bond, and trifluoromethylated dimers. The electrolysis of F3CCO2H in the presence of olefinic carboalkoxy compounds was also studied.

Canadian Journal of Chemistry published new progress about Oxidation. 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

Saxena, Shaiphali; Rao, Pasumarti Bhaskara published the artcile< Comparative GC-MS and FT-IR analysis of Portulaca oleracea L. and Portulaca quadrifida L. leaf extracts>, COA of Formula: C19H34O2, the main research area is Portulaca oleracea quadrifida leaf extract bioactive phytochem GCMS FTIR.

Quality assurance (QA) is an essential task in pharmacognostic field to promote the product standardization. The present study is focused upon phytoconstituent anal. of aqua-methanol leaf extracts of Portulaca oleracea L. and Portulaca quadrifida L. via GC-MS (gas chromatog.-mass spectrometry) and FT-IR (Fourier transform-IR) spectroscopy for formulation of quality medicines and other products. The GC-MS unveiled 72 and 86 bioactive compounds (both major and tracer) of several categories like terpenoids, phenols, steroids, flavonoids, fatty acids, nucleoside, vitamins, etc. The FT-IR chromatogram confirmed various functional groups peaks (cm-1) of amines (-NH2), alcs. (-OH), carboxylic acids (-COOH), ketones (C=O), etc. The present study provides a futuristic platform for researchers to pursue pharmaceutical and food safety assessments and a proper weed management plan.

Pharma Innovation published new progress about Bioactive agents. 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

Azmeera, Thirupathi; Punyamurthy, Rajini; Karuna, M. S. L.; Vidavalur, Siddaiah; Madhu, Devarapaga published the artcile< Partially dehydrated castor oil-based isoalkyl and polyol esters as potential base stocks for industrial applications>, Synthetic Route of 112-63-0, the main research area is partially dehydrated castor oil industrial application.

Partially dehydrated castor oil (PDCO) which is of less use in the paint and furniture coating formulations has been modified to develop biolubricant base stocks. PDCO (44.1%, non-conjugated linoleic acid; 32%, conjugated linoleic acid (18:2) isomers and 15.3% ricinoleic acid) obtained from a local industry was hydrolyzed under alk. conditions. The fatty acids obtained (PDCFAs) in 98% yields were reacted with polyols namely 2-Et hexanol, neopentyl glycol, trimethylol Pr, pentaerythritol to obtain resp. isoalkyl erters and esters of polyol with >95% yield. The base stocks exhibited very high viscosity indexes (187.288 to 187.687), excellent pour point (-25 to -40掳C) and high flash points (212 to 317掳C) required for a variety of industrial applications namely metal working, hydraulic, forging, cutting fluid, gear oil applications. The tribol. properties of PDCO, exhibited very low WSD (0.72-0.79 mm) and WSVs (0.82-0.83 mm3) with high load carrying capacities (180-220 kg) indicating low friction and less energy losses between the sliding surfaces. This was also accompanied by very high thermo-oxidation stabilities [Oxidation stability (230-242掳C); Onset temperature (300-381掳C)] of the base stacks due to branching. Overall all the PDCO isoalkyl and polyol esters exhibited excellent properties suitable for a wide range of industrial applications on par with mineral oil based lubricants.

Asian Journal of Chemistry published new progress about Castor oil, dehydrated Role: PRP (Properties), SPN (Synthetic Preparation), TEM (Technical or Engineered Material Use), PREP (Preparation), USES (Uses) (esters with polyols). 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

Liu, Zijing; Zhang, Jiawen; Jiang, Peiyu; Yin, Zhi; Liu, Yunyi; Liu, Yixuan; Wang, Xiaoyan; Hu, Liang; Xu, Yang; Liu, Wentao published the artcile< Paeoniflorin inhibits the macrophage-related rosacea-like inflammatory reaction through the suppressor of cytokine signaling 3-apoptosis signal-regulating kinase 1-p38 pathway>, COA of Formula: C19H34O2, the main research area is paeoniflorin macrophage rosacea inflammatory reaction SOCS ASK signaling pathway.

Rosacea is a facial chronic inflammatory skin disease with immune and vascular system dysfunction. Paeoniflorin (PF) is a traditional Chinese medicine with anti-inflammatory properties. However, its effects on rosacea remain unknown. Here, we investigated the mechanisms through which PF inhibits the macrophage-related rosacea-like inflammatory response. Immunohistochem. methods were used to detect differences in the inflammatory response and degree of macrophage infiltration in granulomatous rosacea lesions and their peripheral areas. Cell Counting Kit-8 was used to determine the cytotoxicity of PF towards RAW 264.7 cells. Reverse transcription-quant. polymerase chain reaction and western blotting were used to measure the influence of PF on mRNA and protein expression levels of suppressor of cytokine signaling 3 (SOCS3), apoptosis signal-regulating kinase 1 (ASK1)-p38, Toll-like receptor 2, and cathelicidin antimicrobial peptide (or LL37) in the lipopolysaccharide (LPS)-induced macrophage-related rosacea-like inflammatory response of RAW 264.7 cells. Inflammatory cell infiltration was more pronounced in granulomatous rosacea lesions than in peripheral areas. LL37 expression increased significantly, and the infiltration of a large number of CD68+ macrophages was observed in the lesions. PF promoted SOCS3 expression in RAW 264.7 cells and inhibited the LPS-induced increase in toll-like receptor 2 and LL37 expression through the ASK1-p38 cascade, thereby alleviating the macrophage-related rosacea-like inflammatory response. These changes could be abrogated by SOCS3 siRNA in vitro. In conclusion, the pathogenesis of rosacea involves abnormal macrophage infiltration within the lesions. PF inhibits the macrophage-related rosacea-like inflammatory response through the SOCS3-ASK1-p38 pathway, demonstrating its potential application as a novel drug for rosacea therapy.

Medicine (Philadelphia, PA, United States) published new progress about cAMP receptor proteins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Junge, Kathrin; Wendt, Bianca; Shaikh, Nadim; Beller, Matthias published the artcile< Iron-catalyzed selective reduction of nitroarenes to anilines using organosilanes>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is aniline preparation; nitroarene reduction ferrous halide phosphine.

The iron-catalyzed reduction of aromatic nitro compounds to the corresponding anilines applying organosilanes is reported. In the presence of FeX2-R3P catalysts a series of nitroarenes is selectively reduced tolerating a wide range of functional groups.

Chemical Communications (Cambridge, United Kingdom) published new progress about Aromatic amines Role: SPN (Synthetic Preparation), PREP (Preparation). 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

Yang, Shenyu; Li, Bo; Wu, Chunxian; Xu, Weiwei; Tu, Mei; Yan, Yun; Huang, Jianbin; Drechsler, Markus; Granick, Steve; Jiang, Lingxiang published the artcile< Steering Coacervation by a Pair of Broad-Spectrum Regulators>, Quality Control of 112-63-0, the main research area is coacervation regulators cyclodextrin transportation patterning biomimicry; biomimicry; coacervation; cyclodextrin; enzymes; patterning; regulators; transportation.

Coacervation is liquid-liquid phase separation ubiquitous in industrial applications and cellular biol. Inspired by cellular manipulation of coacervate droplets such as P granules, we report here a regulatory strategy to manipulate synthetic coacervation in a spatiotemporally controllable manner. Two oppositely charged small mols. are shown to phase sep. into coacervate droplets in water as a result of electrostatic attraction, hydrophobic effect, and entropy. We identify a down regulator, 尾-cyclodextrin, to disrupt the hydrophobic effect, thus dissolving the droplets, and an up regulator, amylase, to decompose 尾-cyclodextrin, thus restoring the droplets. The regulation kinetics is followed in real time on a single-droplet level, revealing diffusion-limited dissolution and reaction-limited condensation, resp., taking 鈭? s and 2-3 min. Versatility of this strategy to manipulate the coacervation is demonstrated in two aspects: spatially distributed coacervation in virtue of amylase-grafted hydrogel frameworks and coacervate transportation across membranes and hydrogel networks via a disassemble-to-pass strategy. The current regulatory pairs and strategies are anticipated to be general for a wide variety of synthetic self-assembly systems.

ACS Nano published new progress about Caenorhabditis elegans. 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

Jiang, Zhenxiu; Chen, Jun; Chen, Jiangjun; Lei, Zelin; Chen, Hailin; Wu, Jiqiang; Bai, Xue; Wanyan, Pingping; Yu, Qin published the artcile< Anti-inflammatory effects of paeoniflorin caused by regulation of the hif1a/miR-210/caspase1/GSDMD signaling pathway in astrocytes: a novel strategy for hypoxia-induced brain injury in rats>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is hif1a miR 210 IL18 GSDMD animal hypoxia brain injury; GSDMD; Paeoniflorin; astrocytes; hypoxia-induced injury; miR-210; pyroptosis.

Hypoxia-induced injury is a classic symptom of obstructive sleep apnea hypopnea syndrome (OSAHS), which is a risk factor of various diseases, such as hypertension, heart failure and stroke. However, there is no effective therapy for hypoxia-induced injury or OSAHS due to the elusive mechanism involved. This study to assess the effects of paeoniflorin on hypoxia-induced injury and explore the underlying mechanism. Hypoxic models of SD rats and CTX-TNA2 cells were used to assess the effect of paeoniflorin, and the expressions of hif1a, miR-210, caspase1 and GSDMD were detected using western blots and RT-PCR. Plasmid transfection was performed to explore the role of miR-210 in the effect of paeoniflorin. Firstly, we confirmed that hypoxia induced severe neuronal injury and an enhancement of inflammation in the rat brain, with elevated expression of caspase1, IL1b and IL18. In addition, the results showed an activation of astrocytes and an increased level of pyroptosis under hypoxic conditions, which suggested a critical role of pyroptosis in hypoxiainduced injury of the brain. Furthermore, we found that compared with the controls, paeoniflorin treatment improved hypoxia-induced pyroptosis in astrocytes. Moreover, we detected the activation of hif1a/miR-210 signaling in the effects of paeoniflorin on astrocytes. As expected, the expression of hif1a and miR-210 was significantly upregulated in astrocytes when exposed to hypoxia, while paeoniflorin treatment reversed these enhancements. After transfection of miR-210 mimics, the attenuation of pyroptosis induced by paeoniflorin was suppressed, which was accompanied by an increase of ROS levels, as well as LDH release, indicating a critical role of miR-210 in pyroptosis in astrocytes. Our findings demonstrated that paeoniflorin improved hypoxia-induced pyroptosis in astrocytes via depressing hif1a/miR-210/caspase1/GSDMD signaling, providing robust evidence for the treatment of hypoxic injury and OSAHS. HighlightsHypoxia induces severe injury and inflammatory response in the rat brain;Hypoxia enhanced pyroptotic level and led to an activation of astrocytes.;Paeoniflorin alleviates hypoxia-induced pyroptosis in astrocytes;Transfection of miR-210 mimics suppressed the effects of paeoniflorin on hypoxia-induced pyroptosis in astrocytes.

Immunopharmacology and Immunotoxicology published new progress about Animal gene Role: BSU (Biological Study, Unclassified), PRP (Properties), BIOL (Biological Study) (hif1a). 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

Yamamoto, Takeshi; Suzuki, Yuka; Ito, Emi; Tokunaga, Etsuko; Shibata, Norio published the artcile< Asymmetric Synthesis of Both Mirror Images of 3'-Fluorothalidomide by Enantiodivergent Fluorination Using a Single, Cinchona Alkaloid>, COA of Formula: C19H34O2, the main research area is dihydroquinine phthalimidopiperidinone fluorination; fluorothalidomide enantioselective preparation.

Enantiomerically pure 3′-fluorothalidomide (I) was successfully synthesized by enantiodivergent electrophilic fluorination using a combination of cinchona alkaloids and N-fluorobenzenesulfonimide (NFSI) as the key reaction. Importantly, a single chiral mol., dihydroquinine (DHQ), allowed access to the mirror image form of 3′-fluorothalidimide by the choice of additives. While the use of TMEDA gave fluorinated (S)-II, the precursor of I, with 78% ee, Cu(acac)2/bipy, afforded the antipode, (R)-II, in 77% ee.

Organic Letters published new progress about Enantioselective 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

Scheffel, Thamiris Becker; Rockenbach, Liliana; Cruz, Fernanda Fernandes; Kist, Luiza Wilges; Bogo, Mauricio Reis; Scholl, Juliete Nathali; Figueiro, Fabricio; Lenz, Guido; Morrone, Fernanda Bueno published the artcile< Inhibition of ATP hydrolysis as a key regulator of temozolomide resistance and migratory phenotype of glioblastoma cells>, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is ATP hydrolysis temozolomide cell migration phenotype glioblastoma; ATP; CD39; Ectoenzyme; Glioblastoma; Migration; Temozolomide.

Glioblastoma (GBM) is the most lethal among malignant gliomas. The tumor invasiveness and therapy-resistance are important clin. hallmarks. Growing evidence emphasizes the purinergic signaling contributing to tumor growth. Here we exposed a potential role of extracellular ATPase activity as a key regulator of temozolomide cytotoxicity and the migration process in GBM cells. The inhibition of ATP hydrolysis was able to improve the impact of temozolomide, causing arrest mainly in S and G2 phases of the cell cycle, leading M059J and U251 cells to apoptosis. In addition to eradicating GBM cells, ATP hydrolysis exhibited a potential to modulate the invasive phenotype and the expression of proteins involved in cell migration and epithelial-to-mesenchymal-like transition in a 3D culture model. Finally, we suggest the ATPase activity as a key target to decline temozolomide resistance and the migratory phenotype in GBM cells.

Biochemical and Biophysical Research Communications published new progress about Apoptosis. 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

Jiang, Qin; Lin, Jingzhen published the artcile< Synthesis of nonlinear optical material, 3-methyl-4-methoxy-4'-nitrostilbene>, Reference of 112-63-0, the main research area is methylmethoxynitrostilbene preparation nonlinear optical material.

The title compound (I) was prepared in 35% yield by reaction of 4-O2NC6H4CH2P(O)(OEt)2 with 3-methyl-4-methoxybenzaldehyde.

Fuzhou Daxue Xuebao, Ziran Kexueban published new progress about Nonlinear optical materials. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Reference of 112-63-0.

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