Month: October 2022

Maeda, Kyogo; Uemura, Yohei; Chun, Wang-Jae; Satter, Shazia Sharmin; Nakajima, Kiyotaka; Manaka, Yuichi; Motokura, Ken published the artcile< Controllable Factors of Supported Ir Complex Catalysis for Aromatic C-H Borylation>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is borylation catalyst silica immobilized iridium complex tertiary amine preparation; direct borylation aromatic compound CH activation preparation arylboronic ester.

We have developed a catalyst in which an Ir complex and tertiary amine organic functionalities are coimmobilized on the silica surface. The catalytic activity for aromatic C-H borylation was significantly affected by (i) the linker length of the Ir-bipyridine complex, (ii) the coimmobilized organic functionality, and (iii) the substituents on the aromatic substrate compounds The fine-tuned supported catalyst showed higher activity than the homogeneous Ir-bipyridine complex when using a specific substrate such as benzonitrile. We elucidated this property by conducting solid-state NMR, FT-IR, XAFS, and in situ FT-IR anal.

ACS Catalysis published new progress about Aromatic substitution reaction. 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

Nazarov, I. N.; Semenovskii, A. V. published the artcile< Bromomethylation of aromatic compounds>, Related Products of 112-63-0, the main research area is .

Passage of HBr into 150 ml. MePh, 15 g. paraformaldehyde, 8.5 g. ZnCl2, and a little P 1 hr. at 50° gave after washing with NaHCO3 and H2O, 58% mixed MeC6H4CH2Br isomers (I), b10 82-90°, and some diaryl derivatives b13 145-50°. Passage of HBr into 150 ml. CCl4, 15 g. paraformaldehyde, and 10 g. ZnCl2 with a little P for 35 min. and dropwise addition of 53 g. EtPh at 50° in a continuous stream of HBr over 1.3 hrs. similarly gave 48.3% mixed EtC6H4CH2Br (II), b7.5 96-100°. Passage of HBr 6 hrs. into 90 ml. concentrated HBr, 70 g. MePh, 30 g. paraformaldehyde, and a little P, followed by 19 hrs. at 50° gave, after washing, 71.3% mixed MeC6H4CH2Br, b23 112-20°; similarly, EtPh gave 85% mixed EtC6H4CH2Br, b10 101-4°, while iso-PrPh gave 78% mixed iso-PrC6H4CH2Br (III), b20 126-30°. Hydrolysis of I gave mixed o- and p-MeC6H4CH2OH, b12 106-10°; II gave the corresponding Et analogs, b12 120-4° and III gave mixed iso-Pr analogs, b12 121-5°. The hydrolyses were run with chalk in hot H2O 24 hrs. Oxidation of the alcs. with CrO3 gave mixtures of o- and p-C6H4(CO2H)2; oxidation with 10% HNO3 in an autoclave at 200° gave the same products, in which the p-isomers predominated.

Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya published new progress about Bromomethylation. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Related Products of 112-63-0.

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

Choudary, B. M.; Reddy, G. Vidya Sagar; Rao, K. Koteswara published the artcile< Vanadium-catalyzed novel oxidation of arylacetic esters for the synthesis of arylglyoxylic esters>, Electric Literature of 30095-98-8, the main research area is arylacetate oxidation vanadium montmorillonite catalyst; arylglyoxylate; glyoxylate aryl.

Direct synthesis of arylglyoxylic esters RC6H4COCO2Me (R = H, 2-, 4-OMe, 4-Me, 4-NH2, 4-NO2, 2-, 4-Cl) in excellent yields (24-88%) from inexpensive arylacetic esters RC6H4CH2CO2Me is realized for the first time by the oxidation of activated methylene using vanadium pillared clay as the catalyst and tert-Bu hydroperoxide as an oxidant.

Journal of the Chemical Society, Chemical Communications published new progress about Oxidation. 30095-98-8 belongs to class esters-buliding-blocks, and the molecular formula is C9H9NO4, Electric Literature of 30095-98-8.

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

Rakkan, Thanaphorn; Chana, Netnapa; Chirapongsatonkul, Nion; U-taynapun, Kittichon; Sangkharak, Kanokphorn published the artcile< Screening and Identification of Newly Isolated Basic Red 9-Degrading Bacteria from Textile Wastewater and Their Ability to Produce Medium-Co-Long-Chain-Length Polyhydroxyalkanoates>, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is Enterobacter basic red biodegradation wastewater treatment.

Newly isolated Basic Red 9-degrading bacteria were isolated from textile wastewater using a pretreatment method. Nine strains were isolated; however, only five strains accumulated polyhydroxyalkanoates (PHAs). Thereafter, PHA-producing strains were identified through 16S rDNA sequencing anal. and phylogenetic evaluation and were found to belong to Enterobacter with 100% identification. The five isolated strains were incubated with a PHAs-producing medium containing 100 mg/l Basic Red 9 (BR9) to study decolorization efficiency, and PHAs production Enterobacter sp. strains TS3 and TS1L effectively decolorized the BR9 dye with degradation rates of 63.43% and 79.15%, resp. PHAs production from TS3 and TS1L was also observed to be 75.34% and 72.32% of dry cell weight (DCW), resp. Furthermore, Enterobacter sp. strains TS3 and TS1L accumulated medium-co-long-chain-length PHAs (mcl-co-lcl PHAs). This is the first report using Enterobacter strains to degrade BR9 dyes from textile wastewater and to assess their ability to produce mcl-co-lcl PHAs.

Journal of Polymers and the Environment published new progress about Bacteria. 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

Lee, Dae-Yon; Kim, In-Jung; Jun, Chul-Ho published the artcile< Synthesis of cycloalkanones from dienes and allylamines through C-H and C-C bond activation catalyzed by a rhodium(I) complex>, SDS of cas: 112-63-0, the main research area is cycloalkanone preparation alkadiene allylamine rhodium catalyzed carbon hydrogen activation; phenylpropenyl pyridinamine alkadiene rhodium catalyzed activation cycloalkanone preparation.

An allylic amine, 3-methyl-N-(3-phenyl-2-propenyl)-2-pyridinamine (I), is used as a masked form of formaldehyde in the rhodium-catalyzed cyclization of dienes. The reaction provides access to various cycloalkanones through chelation-assisted C-H-bond and C-C-bond activation. The di-μ-chlorotetrakis[(1,2-η)-cyclooctene]dirhodium/tricyclohexylphosphine-catalyzed reaction of I with [[(1-ethenyl-3-butenyl)oxy]methyl]benzene gave 4-(phenylmethoxy)cycloheptanone (II) and 2-methyl-4-(phenylmethoxy)cyclohexanone (III) (84% overall yield; 67:33 ratio). Also, allylic amines that have no coordination site could be applied to this reaction; for example, N-(3-Phenyl-2-propenyl)benzenamine reacted with [[(1-ethenyl-3-butenyl)oxy]methyl]benzene in the presence of 3-methyl-2-pyridinamine catalyzed by di-μ-chlorotetrakis[(1,2-η)-cyclooctene]dirhodium/tricyclohexylphosphine gave II and III (72% overall yield; 53:47 ratio).

Angewandte Chemie, International Edition published new progress about Acylation. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, SDS of cas: 112-63-0.

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

Min, Qing-Qiang; Li, Na; Chen, Guang-Le; Liu, Feng published the artcile< Copper-catalysed C(sp3)-N coupling initiated by selective C-C bond cleavage of cyclobutanone oxime esters>, Category: esters-buliding-blocks, the main research area is arylaminobutanenitrile preparation chemoselective; cyclobutanone oxime ester aryl amine bond cleavage amination copper.

Herein, an efficient copper-catalyzed selective C-C bond cleavage/amination of cyclobutanone oxime esters is reported. This reaction protocol is operationally simple and conducted at ambient temperature, allowing access to a wide range of functionalized 4-(arylamino)butanenitriles in moderate to excellent yields. This transformation shows high chemo-selectivity and wide functional-group compatibility and can be easily scaled up to the gram level with a useful yield. A mechanism involving copper-catalyzed capture of alkyl radical intermediates by amine nucleophiles is proposed.

Organic Chemistry Frontiers published new progress about Amination. 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

Svec, Riley L.; McKee, Sydney A.; Berry, Matthew R.; Kelly, Aya M.; Fan, Timothy M.; Hergenrother, Paul J. published the artcile< Novel Imidazotetrazine Evades Known Resistance Mechanisms and Is Effective against Temozolomide-Resistant Brain Cancer in Cell Culture>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is imidazotetrazin derivative preparation temozolomide resistant glioblastoma.

Glioblastoma (GBM) is the most lethal primary brain tumor. Currently, frontline treatment for primary GBM includes the DNA-methylating drug temozolomide (TMZ, of the imidazotetrazine class), while the optimal treatment for recurrent GBM remains under investigation. Despite its widespread use, a majority of GBM patients do not respond to TMZ therapy; expression of the O6-methylguanine DNA methyltransferase (MGMT) enzyme and loss of mismatch repair (MMR) function as the principal clin. modes of resistance to TMZ. Here, we describe a novel imidazotetrazine designed to evade resistance by MGMT while retaining suitable hydrolytic stability, allowing for effective prodrug activation and biodistribution. This dual-substituted compound, called CPZ, exhibits activity against cancer cells irresp. of MGMT expression and MMR status. CPZ has greater blood-brain barrier penetrance and comparable hematol. toxicity relative to TMZ, while also matching its maximum tolerated dose in mice when dosed once-per-day over five days. The activity of CPZ is independent of the two principal mechanisms suppressing the effectiveness of TMZ, making it a promising new candidate for the treatment of GBM, especially those that are TMZ-resistant.

ACS Chemical Biology published new progress about Antitumor agent resistance. 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

Qin, Lu-Yun; Guan, Peng; Wang, Jian-Xin; Chen, Yu; Zhao, Ya-Shuo; Yang, Sheng-Chang; Guo, Ya-Jing; Wang, Na; Ji, En-Sheng published the artcile< Therapeutic potential of astragaloside IV against Adriamycin-induced renal damage in rats via ferroptosis>, Computed Properties of 347174-05-4, the main research area is renal damage ferroptosis astragaloside IV therapeutic potential; Adriamycin; astragaloside Ⅳ; ferroptosis; iron metabolism; kidney.

Adriamycin (ADR) has been utilized to treat cancer for several decades. However, ADR-induced renal injury is one of the most common side effects accompanying ADR therapy. In the present study, we revealed that astragaloside IV (ASIV) was beneficial for renal injury caused by Adriamycin. We demonstrated that ASIV significantly ameliorated kidney injury, improved renal dysfunction, reduced oxidative stress, alleviated iron accumulation, and inhibited the induction of ferroptosis by ADR. ASIV also rescued the intracellular levels of nuclear factor-erythroid-2-related factor 2 (Nrf2) and promoted nuclear translocation of Nrf2. These protective effects of ASIV on renal injury might be attained through the ASIV-induced activation of the Pi3K/Akt signaling pathway. In vitro, the treatment of the HK-2 cells with fer-1 or deferoxamine mesylate obviously improved cell viability during Adriamycin administration. On the other hand, the protective role of ASIV can be abrogated by RSL3 to some extent. Moreover, ASIV lowered the expression of transferrin receptor 1 and divalent metal transporter 1 while enhancing the expression of ferropotin 1 and glutathione peroxidase 4 in ADR administrated cells, the effects of which were akin to those of deferoxamine mesylate. Furthermore, ASIV increased the phosphorylation of Pi3K, Akt, and the expression of Nrf2 and glutathione peroxidase 4 compared to HK-2 cells stimulated by ADR. However, Pi3K inhibitor LY294002 abrogated these activations. In conclusion, ferroptosis may involve in ADR-induced nephrotoxicity, and ASIV might protect nephrocytes against ADR-induced ferroptosis, perhaps via activations of the Pi3K/Akt and Nrf2 signaling pathways.

Frontiers in Pharmacology published new progress about Antioxidant enzymes Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 347174-05-4 belongs to class esters-buliding-blocks, and the molecular formula is C15H22N2O2, Computed Properties of 347174-05-4.

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

Nyakas, Marta; Fleten, Karianne Giller; Haugen, Mads Haugland; Engedal, Nikolai; Sveen, Christina; Farstad, Inger Nina; Floerenes, Vivi Ann; Prasmickaite, Lina; Maelandsmo, Gunhild Mari; Seip, Kotryna published the artcile< AXL inhibition improves BRAF-targeted treatment in melanoma>, Recommanded Product: Ethyl 3-amino-4-(cyclohexylamino)benzoate, the main research area is BGB324 vemurafenib anticancer agent AXL BRAF proteome metastatic melanoma.

More than half of metastatic melanoma patients receiving standard therapy fail to achieve a long-term survival due to primary and/or acquired resistance. Tumor cell ability to switch from epithelial to a more aggressive mesenchymal phenotype, attributed with AXL high mol. profile in melanoma, has been recently linked to such event, limiting treatment efficacy. In the current study, we investigated the therapeutic potential of the AXL inhibitor (AXLi) BGB324 alone or in combination with the clin. relevant BRAF inhibitor (BRAFi) vemurafenib. Firstly, AXL was shown to be expressed in majority of melanoma lymph node metastases. When treated ex vivo, the largest reduction in cell viability was observed when the two drugs were combined. In addition, a therapeutic benefit of adding AXLi to the BRAF-targeted therapy was observed in pre-clin. AXL high melanoma models in vitro and in vivo. When searching for mechanistic insights, AXLi was found to potentiate BRAFi-induced apoptosis, stimulate ferroptosis and inhibit autophagy. Altogether, our findings propose AXLi as a promising treatment in combination with standard therapy to improve therapeutic outcome in metastatic melanoma.

Scientific Reports published new progress about Animal gene Role: BSU (Biological Study, Unclassified), PRP (Properties), BIOL (Biological Study) (BRAF). 347174-05-4 belongs to class esters-buliding-blocks, and the molecular formula is C15H22N2O2, Recommanded Product: Ethyl 3-amino-4-(cyclohexylamino)benzoate.

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

Rasheed, Hafiz Majid; Wahid, Fazli; Ikram, Muhammad; Qaisar, Muhammad; Shah, Abdul Jabbar; Khan, Taous published the artcile< Chemical profiling and anti-breast cancer potential of hexane fraction of Sphaeranthus indicus flowers>, Related Products of 112-63-0, the main research area is Sphaeranthus flower extract anticancer breast cancer.

The current study aimed to determine the phytochems. and anti-breast cancer potential of Sphaeranthus indicus. S. indicus flowers were extracted with methanol followed by fractionation using n-hexane. For the chem. composition of n-hexane fraction, qual. phytochem. and GC-MS anal. were performed. The anti-proliferative activity was measured by MTT assay, whereas, cytotoxic and proapoptotic effects in MCF-7 (breast cancer) cells were determined using propidium iodide, 4,6-diamidino-2-phenylindole, dichlorofluorescin diacetate, and JC-1 staining through fluorescent microscopy. The phytochem. anal. indicated presence of phytosterols, oils and resins in the nhexane fraction. GC-MS anal. showed that n-hexane fraction comprises of 11 compounds including Me esters of caprylic acid, myristic acid, pentadecanoic acid, palmitic acid, margaric acid, stearic acid, oleic acid, elaidic acid, linoleic acid, linolenic acid and behanic acid. The tested fraction showed remarkable cytotoxic activity against breast cancer (MCF-7) cells while it was found less toxic towards non-cancerous (BHK-21) cells. Furthermore, morphol. assessment through fluorescent microscopy revealed cytotoxic and apoptotic effects by improved cell membrane permeability, increased reactive oxygen species level, compromised mitochondrial activity and condensation of chromatin network. Conclusion: The n-hexane fraction of S. indicus contains phytosterols, oils and fatty acid Me esters and produced apoptotic effect against breast cancer cells.

Tropical Journal of Pharmaceutical Research published new progress about Antitumor agents. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Related Products of 112-63-0.

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