Category: 112-63-0

Wang, Jian; Xie, Hexin; Li, Hao; Zu, Liansuo; Wang, Wei published the artcile< A highly stereoselective hydrogen-bond-mediated Michael-Michael cascade process through dynamic kinetic resolution>, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is thiochroman preparation mercaptocinnamate nitroalkene cinchona thiourea catalyst.

The title reaction, which is efficiently catalyzed by a cinchona alkaloid thiourea affords direct access to thiochromanes in high efficiency. The reaction features a new activation mode of organocatalytic dynamic kinetic resolution involving a Michael-retro-Michael-Michael-Michael cascade.

Angewandte Chemie, International Edition published new progress about Alkenes, nitro Role: RCT (Reactant), RACT (Reactant or Reagent). 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

Trentin, Riccardo; Custodio, Luisa; Rodrigues, Maria Joao; Moschin, Emanuela; Sciuto, Katia; da Silva, Jose Paulo; Moro, Isabella published the artcile< Total Phenolic Levels, In Vitro Antioxidant Properties, and Fatty Acid Profile of Two Microalgae, Tetraselmis marina Strain IMA043 and Naviculoid Diatom Strain IMA053, Isolated from the North Adriatic Sea>, HPLC of Formula: 112-63-0, the main research area is Tetraselmis marina Naviculoid Diatom fatty acid phenol antioxidant property; biodiesel; microalgal biotechnology; natural antioxidants.

This work studied the potential biotechnol. applications of a naviculoid diatom (IMA053) and a green microalga (Tetraselmis marina IMA043) isolated from the North Adriatic Sea. Water, methanol, and dichloromethane (DCM) extracts were prepared from microalgae biomass and evaluated for total phenolic content (TPC) and in vitro antioxidant properties. Biomass was profiled for fatty acid Me esters (FAME) composition The DCM extracts had the highest levels of total phenolics, with values of 40.58 and 86.14 mg GAE/g dry weight (DW in IMA053 and IMA043, resp.). The DCM extracts had a higher radical scavenging activity (RSA) than the water and methanol ones, especially those from IMA043, with RSAs of 99.65% toward 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)diammonium salt (ABTS) at 10 mg/mL, and of 103.43% against 2,2-diphenyl-1-picrylhydrazyl (DPPH) at 5 mg/mL. The DCM extract of IMA053 displayed relevant copper chelating properties (67.48% at 10 mg/mL), while the highest iron chelating activity was observed in the water extract of the same species (92.05% at 10 mg/mL). Both strains presented a high proportion of saturated (SFA) and monounsaturated (MUFA) fatty acids. The results suggested that these microalgae could be further explored as sources of natural antioxidants for the pharmaceutical and food industry and as feedstock for biofuel production

Marine Drugs published new progress about Antioxidants. 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

Luo, Kui; Liu, Aiqun; Wu, Hao; Liu, Qiang; Dai, Jin; Liu, Yu; Wang, Zhifei published the artcile< CircKIF4A promotes glioma growth and temozolomide resistance by accelerating glycolysis>, Application In Synthesis of 112-63-0, the main research area is .

Abstract: Circular RNAs (circRNAs) are a kind of noncoding RNAs that have different biol. functions. CircRNAs play very important parts in the progression of cancers. Nevertheless, the exact mechanism and function of many circRNAs in glioma are not clear. In our study, circKIF4A was identified as a remarkably upregulated circRNA expressed in glioma tissues and cell lines. We performed loss-off function and gain-of-function experiments to inquire into the biol. function of circKIF4A in the progression of glioma. We discovered that knockdown of circKIF4A remarkably decreased the proliferation and invasion ability of glioma cells. Moreover, s.c. tumorigenesis model and intracranial injection of orthotopic glioma model were established to investigate the functions of circKIF4A in vivo. Suppression of circKIF4A remarkably enhanced the sensitivity of glioma to temozolomide treatment. The glycolysis rate was accelerated by circKIF4A overexpression, which promoted glioma growth and temozolomide resistance. The glycolysis regulating enzyme ALDOA was regulated by circKIF4A through the mechanism of interactivity with miR-335-5p in glioma cells. In a word, our data showed that the upregulation of circKIF4A facilitates glioma progression by means of binding miR-335-5p and upregulating ALDOA expression.

Cell Death & Disease published new progress about 112-63-0. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application In Synthesis of 112-63-0.

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

Al-Toubah, Taymeyah; Morse, Brian; Strosberg, Jonathan published the artcile< Efficacy of Capecitabine and Temozolomide in Small Bowel (Midgut) Neuroendocrine Tumors.>, Reference of 112-63-0, the main research area is capecitabine; captem; carcinoid; midgut; neuroendocrine tumors; small bowel; temozolomide.

The capecitabine/temozolomide regimen has significant activity in pancreatic NETs; however, data are limited in NETs of the small bowel (midgut). A retrospective study of all patients with metastatic midgut NETs seen at Moffitt Cancer Center between January 2008 and June 2019 treated with CAPTEM was conducted. 32 patients with proven or suspected well-differentiated primary small bowel NETs (excluding duodenum) were identified. 6 patients were found to have a radiographic response (19%), 5 of whom had high-grade disease. Only one patient among 23 with low/intermediate-grade disease responded (4%), whereas the response rate for patients with high-grade disease was 56%. Among patients with low/intermediate-grade disease, 44% discontinued due to poor tolerability. The CAPTEM regimen appears to have an activity in patients with high-grade small bowel NETs and is largely inactive in patients with low/intermediate-grade tumors.

Current oncology (Toronto, Ont.) published new progress about 112-63-0. 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

Li, Zhanhui; Hao, Yongjin; Yang, Chengkui; Yang, Qing; Wu, Shuwei; Ma, Haikuo; Tian, Sheng; Lu, Haohao; Wang, Jingrui; Yang, Tao; He, Sudan; Zhang, Xiaohu published the artcile< Design, synthesis, and evaluation of potent RIPK1 inhibitors with in vivo anti-inflammatory activity>, Category: esters-buliding-blocks, the main research area is RIPK1 antiinflammatory agent necroptosis signalling inflammation; Inflammatory; Kinase inhibitor; Necroptosis; RIPK1.

RIPK1 plays a key role in the necroptosis pathway that regulates inflammatory signaling and cell death in various diseases, including inflammatory and neurodegenerative diseases. Herein, we report a series of potent RIPK1 inhibitors, represented by compound 70. Compound 70 efficiently blocks necroptosis induced by TNFα in both human and mouse cells (EC50 = 17-30 nM). Biophys. assay demonstrates that compound 70 potently binds to RIPK1 (Kd = 9.2 nM), but not RIPK3 (Kd > 10,000 nM). Importantly, compound 70 exhibits greatly improved metabolic stability in human and rat liver microsomes compared to compound 6 (PK68), a RIPK1 inhibitor reported in our previous work. In addition, compound 70 displays high permeability in Caco-2 cells and excellent in vitro safety profiles in hERG and CYP assays. Moreover, pre-treatment of 70 significantly ameliorates hypothermia and lethal shock in SIRS mice model. Lastly, compound 70 possesses favorable pharmacokinetic parameters with moderate clearance and good oral bioavailability in SD rat. Taken together, our work supports 70 as a potent RIPK1 inhibitor and highlights its potential as a prototypical lead for further development in necroptosis-associated inflammatory disorders.

European Journal of Medicinal Chemistry published new progress about Anti-inflammatory agents. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Category: esters-buliding-blocks.

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

Han, Xiaolong; Jin, Yujuan; Huang, Jian; Tian, Huafeng; Guo, Maolin published the artcile< Highly toughening modification of hyperbranched polyester with environment-friendly caprolactone as end group on poly(3-hydroxybutyrate-co-3-hydroxyvalerate)>, Quality Control of 112-63-0, the main research area is hyperbranched polyester toughening modifier polyhydroxybutyrate hydroxyvalerate blend preparation property.

Hyperbranched polymer with flexible long chains (ε-CL) were synthesized based on hydroxyl terminated hyperbranched polyesters (HBPEs). The prepared HBP-CLs were used to toughen poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) by melt-blending. Comparing with pure PHBV, the crystallinity (Xc) of the PHBV/3.0phr HBP-CLs blends decreased by 10.2% (from 67.8 to 60.9%), the impact strength increased by 533.3% (from 5.1 kJ·m-2 to 32.3 kJ·m-2), and the elongation at break increased by 160.5% (from 1.62 to 4.22%). With the increase of HBP-CLs, the fracture surface of the PHBV/HBP-CLs blends became rough and a significant decrease in crystallization area can be seen from POM images. Even filamentous structures and tiny holes was formed, which further demonstrated that HBP-CLs acted as an excellent toughening effect on PHBV.

Journal of Polymers and the Environment published new progress about Branched polymers, hyperbranched dendritic polymers Role: MOA (Modifier or Additive Use), PRP (Properties), SPN (Synthetic Preparation), USES (Uses), PREP (Preparation). 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

Golubeva, M. A. published the artcile< In Situ Generated Nickel Phosphide Based Catalysts for Hydroprocessing of Levulinic Acid>, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is nickel phosphide catalyst levulinic acid hydroconversion.

This article describes the production of unsupported nickel phosphide catalysts generated in situ in a reaction mixture from water-soluble and oil-soluble precursors during the hydroconversion of levulinic acid. These catalysts contain crystalline phases, specifically Ni12P5 and Ni(PO3)2. During the hydrogenation of levulinic acid in toluene in the presence of NiP-TOP, a lower temperature and a shorter reaction time contribute to the formation of γ-valerolactone (100% selectivity). A higher temperature and a longer reaction time favor the formation of valeric acid (94% selectivity). In the hydrogenation of levulinic acid in ethanol in the presence of NiP-H3PO2, the main reaction product is Et levulinate (95% selectivity).

Petroleum Chemistry published new progress about Deoxidation. 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

Kondratenko, N. V.; Matyushecheva, G. I.; Yagupol’skii, L. M. published the artcile< Halomethylbenzenes>, Application In Synthesis of 112-63-0, the main research area is halomethyl fluorobenzenes; fluorobenzenes halomethyl; inductive effect halomethyl substituents; conjugative effect halomethyl substituents.

19F NMR spectroscopy of m- and p-substituted fluorobenzenes was used to determine the inductive and conjugative effects of CH2X, CHX2, and CX3 groups (X = F, Cl, Br, I, SCF3). Almost no conjugative interaction was observed between these substituents and the aromatic nucleus. The inductive effect increased with increasing number of X in the substituent group, and was greatest for X = SCF3.

Zhurnal Organicheskoi Khimii published new progress about Conjugation (bond). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application In Synthesis of 112-63-0.

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

Poulsen, Thomas B.; Bell, Mark; Jorgensen, Karl Anker published the artcile< Organocatalytic asymmetric allylic carbon-carbon bond formation>, Synthetic Route of 112-63-0, the main research area is malononitrile cycloalkylidene enantioselective Michael addition nitroalkene cinchona alkaloid catalyst; allylic carbon bond formation asym organocatalytic.

Organocatalytic allylic C-C bond-forming addition of activated alkylidenes I [X = O, CH2, CH2CH2, R1 = H; X = CH2, R1 = 7-MeO, 6-MeO, 5,7-Me2, 6,7-(MeO)2] to alkyl and aryl nitroalkenes R2CH:CHNO2 (R2 = n-pentyl, cyclohexyl, Ph, 4-MeOC6H4, 2-naphthyl, 2-thienyl, etc.) has been achieved with high diastereo- and enantioselectivity. Chiral tertiary amine catalysts are used to give allyl intermediates which exhibit γ-selectivity in the C-C bond forming step. The reactions proceed with up to >99:1 syn:anti ratio for both the alkyl- and aryl nitroalkenes with up 96% and 98% ee, resp. The products II of this conjugate addition are transformed into a range of intermediates, such as optically active conjugated dienes and 1-substituted tetralones, which are difficult to access via alternative methods.

Organic & Biomolecular Chemistry published new progress about Alkenes, nitro Role: RCT (Reactant), RACT (Reactant or Reagent). 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

Brouwer, T.; van Lin, R.; ten Kate, A. J. B.; Schuur, B.; Bargeman, G. published the artcile< Influence of Solvent and Acid Properties on the Relative Volatility and Separation Selectivity for Extractive Distillation of Close-Boiling Acids>, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is selectivity extractive distillation mixture organic acid solvent volatility.

The increasing need for sustainable processes stimulates the production and recovery of renewable organic acids. The purification of these acids is often difficult because of similar acid volatilities but can be improved through extractive distillation Generic insights into solvent effects on the separation efficiency for close-boiling acids are however lacking. This study provides insights into the effect of acidity, the acidity difference between the acids, the hydrogen-bonding strength of the solvent, and the solvent-to-feed ratio on organic acid separation efficiency. For an acetic acid-formic acid (AA-FA) mixture, the addition of high-boiling organic acids increases the relative volatility of FA over AA significantly. The addition of a Lewis base reverses the relative volatility, which depends on the applied solvent-to-feed ratio and the Lewis base BF3 affinity. For several binary acid mixtures (such as AA-FA and monochloroacetic acid-dichloroacetic acid), where the acids have a relatively big difference in acidity (ΔpKa ≥ 1), the separation selectivity appears practically independent of the acid strength of the individual acids and increases with increasing BF3 affinity of the Lewis base. For acid mixtures with a lower ΔpKa, a lower separation selectivity is obtained, as observed for separation of the pivalic acid-butyric acid and valeric acid-2-Me butyric acid mixtures When one of the acids in the mixture contains a secondary ketone group (i.e., levulinic acid in a levulinic acid-octanoic acid mixture), the strongest acid based on pKa is not necessarily attracted most by the added Lewis base. This, at first sight, unexpected behavior is most likely the result of complex intra- and intermol. interactions and is quant. in line with COSMO-RS-based selectivity predictions.

Industrial & Engineering Chemistry Research published new progress about Acidity. 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