Tag: M.W=250-300

Park, Jun Bae; Park, Hayeong; Son, Jimin; Ha, Sang-Jun; Cho, Hyun-Soo published the artcile< Structural study of monomethyl fumarate-bound human GAPDH>, Electric Literature of 112-63-0, the main research area is monomethyl fumarate GAPDH nicotinamide; crystallography; glyceraldehyde-3-phosphate dehydrogenase; inhibitor; monomethyl fumarate.

Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is a core enzyme of the aerobic glycolytic pathway with versatile functions and is associated with cancer development. Recently, Kornberg et al. published the detailed correlation between GAPDH and di- or monomethyl fumarate (DMF or MMF), which are well-known GAPDH antagonists in the immune system. As an extension, herein, we report the crystal structure of MMF-bound human GAPDH at 2.29 Å. The MMF mol. is covalently linked to the catalytic Cys152 of human GAPDH, and inhibits the catalytic activity of the residue and dramatically reduces the enzymic activity of GAPDH. Structural comparisons between NAD+-bound GAPDH and MMF-bound GAPDH revealed that the covalently linked MMF can block the binding of the NAD+ co-substrate due to steric hindrance of the nicotinamide portion of the NAD+ mol., illuminating the specific mechanism by which MMF inhibits GAPDH. Our data provide insights into GAPDH antagonist development for GAPDH-mediated disease treatment.

Molecules and Cells published new progress about Homo sapiens. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Electric Literature of 112-63-0.

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

Marquez, Paulina; Moncada-Basualto, Mauricio; Olea-Azar, Claudio; Herrera, Francisco; Garcia, Macarena; Aguirre, Mmaia J. published the artcile< Brief study on the decomposition of tetraethylene glycol dimethyl ether (TEGDME) solvent in the presence of Li2O2 and H2O2>, Product Details of C19H34O2, the main research area is decomposition tetraethylene glycol dimethyl ether solvent lithium oxide water.

In this work, the decomposition of the solvent tetraethylene glycol di-Me ether (TEGDME) was studied under conditions that simulate the charge of a Li-O2 cell in the presence and absence of hydrogen peroxide and lithium peroxide by means of ESR spectroscopy (ESR). We detected the formation of radical species, although in low concentrations, originating from solvent decomposition reactions during the oxidation process, in the absence of peroxides. On the other hand, by introducing H2O2 and H2O into the system, oxygen-centered superoxide and hydroxyl radical species were detected. Furthermore, in the presence of Li-O2, carbon-centered radical species were detected which clearly show the decomposition of the solvent. Finally, the results show that it is very important that the charging process of a Li-O2 cell is carried out by direct oxidation via 2 eto Li2O2 to avoid the formation of radical species that the decomposition of the solvent.

Journal of the Chilean Chemical Society published new progress about Concentration (condition). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Product Details of C19H34O2.

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

Dargo, Gyula; Nagy, Sandor; Kis, David; Bagi, Peter; Matravolgyi, Bela; Toth, Blanka; Huszthy, Peter; Drahos, Laszlo; Kupai, Jozsef published the artcile< Application of Proline-Derived (Thio)squaramide Organocatalysts in Asymmetric Diels-Alder and Conjugate Addition Reactions>, Related Products of 112-63-0, the main research area is hydroxyethyl nitro phenyl tetracyclic compound preparation enantioselective; anthracenyl acetaldehyde nitrostyrene Diels Alder reaction proline squaramide organocatalyst; hydroxynaphthoquinonyl keto ester preparation enantioselective; lawsone unsaturated keto ester conjugate addition proline squaramide organocatalyst.

The synthesis of chiral proline-derived squaramide and thiosquaramide organocatalysts I [X = O or S], which are capable of the dual activation in asym. reactions is reported. The (thio)squaramide moiety can form hydrogen bonds to activate the substrates and to stereocontrol the reaction, while the pyrrolidine unit can form enamines to activate carbonyl compounds via aminocatalysis. Comparing the performance of thiosquaramide to squaramide, the Diels-Alder reaction of (anthracen-9-yl)acetaldehyde and trans-beta-nitrostyrene (E)-RC6H4CH=CHNO2 [R = H, Br, OMe] was examined, which has been investigated in the literature using quantum chem. calculations Both squaramide and thiosquaramide gave excellent yields (up to 99%) and enantiomeric excess values (up to 98%). Moreover, their catalytic performance was compared in conjugate addition of lawsone to 2-oxo-4-phenyl-but-3-enoic acid Et ester.

Synthesis published new progress about Conjugate addition reaction catalysts, stereoselective. 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

Condie, Allison G.; Gerson, Stanton L.; Miller, Robert H.; Wang, Yanming published the artcile< Two-Photon Fluorescent Imaging of Myelination in the Spinal Cord>, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is spinal cord myelination demyelination myelin two photon fluorescent imaging; myelin two photon fluorescent imaging Case Imaging Compound preparation.

Myelination is a fundamental biol. process in the vertebrate nervous system. Damage to or malformation of myelin can lead to various neurol. diseases; for example, demyelination in the spinal cord is a major cause of paralysis of patients suffering from multiple sclerosis and related diseases. The ability to directly track myelin levels in the spinal cord is needed in order to assess the efficacy of therapeutics in promoting myelin repair. To address this unmet need, 4-((E)-4-((E)-4-aminostyryl)-2,5-dimethoxystyryl)-N-methylaniline, known as Case Imaging Compound (CIC), has been developed as a myelin-targeted fluorescent imaging agent that selectively binds to myelin. CIC was synthesized via an improved route and evaluated as a fluorescent probe for two-photon fluorescent imaging of myelin in the spinal cord in both demyelinated and dysmyelinated models. In vitro and ex vivo tissue staining both suggest that CIC selectively binds to in animal models. Further evaluation in animal models indicated that CIC is sensitive to differences in myelin content in healthy vs. pathol. myelin. CIC could potentially be useful in the development and evaluation of novel therapies for multiple sclerosis and other demyelinating diseases.

ChemMedChem published new progress about Demyelination. 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

Fort-Aznar, Laura; Ugbode, Chris; Sweeney, Sean T. published the artcile< Retrovirus reactivation in CHMP2BIntron5 models of frontotemporal dementia>, COA of Formula: C19H34O2, the main research area is frontotemporal dementia ALS retrovirus reactivation reverse transcriptase CHMP2B; Drosophila ; gypsy ; amyotrophic lateral sclerosis; frontotemporal dementia; retrovirus.

Frontotemporal dementia (FTD) is the second most prevalent form of pre-senile dementia after Alzheimer′s disease. Amyotrophic lateral sclerosis (ALS) can overlap genetically, pathol. and clin. with FTD indicating the two conditions are ends of a spectrum and may share common pathol. mechanisms. FTD-ALS causing mutations are known to be involved in endosomal trafficking and RNA regulation. Using an unbiased genome-wide genetic screen to identify mutations affecting an FTD-ALS-related phenotype in Drosophila caused by CHMP2BIntron5 expression, we have uncovered repressors of retrovirus (RV) activity as modifiers of CHMP2BIntron5 toxicity. We report that neuronal expression of CHMP2BIntron5 causes an increase in the activity of the endogenous Drosophila RV, gypsy, in the nervous system. Genetically blocking Drosophila gypsy activation and pharmacol. inhibiting viral reverse transcriptase activity prevents degenerative phenotypes observed in fly and rat neurons. These findings directly link endosomal dysfunction to RV de-repression in an FTD-ALS model without TDP-43 pathol. These observations may contribute an understanding to previous discoveries of RV activation in ALS affected patients.

Human Molecular Genetics published new progress about Amyotrophic lateral sclerosis. 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

Easmon, Johnny; Puerstinger, Gerhard; Heinisch, Gottfried; Fiebig, Hans H.; Roth, Thomas; Hofmann, Johann published the artcile< Synthesis, Cytotoxic, and Antitumor Activities of 2-Pyridylhydrazones Derived from 3-Benzoylpyridazines>, Application In Synthesis of 112-63-0, the main research area is pyridylhydrazone preparation anticancer; pyridylhydrazine benzoylpyridazine condensation; 3-Benzoylpyridazine 2′-pyridylhydrazones; Antitumor activity; Colony forming assay; Cytotoxic activity.

A series of 2-pyridylhydrazones derived from phenyl-pyridazin-3-yl-methanones were prepared in search for potential novel antitumor agents. The stereochem. of these compounds was established by means of NMR spectroscopy. Whereas hydrazones derived from 3-benzoylpyridazines (IC50 = 0.99-8.74 μM) inhibited the proliferation of the tumor cell lines tested, the non-fully aromatic 3-benzoylpyridazinone hydrazones (IC50 > 10 μM) turned out to be inactive. Compounds I (R = H, R1 = OMe, IC50 = 0.12 μM) and I (R = OMe, R1 = H, IC50 = 0.18 μM) exert high cytotoxic activities in clonogenic assays involving human tumor cells of different tissue origins. In vivo application of compound I (R = H, R1 = OMe, 300 mg/kg/day) resulted in a 66% reduction in tumor burden.

Archiv der Pharmazie (Weinheim, Germany) published new progress about Antitumor agents. 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

Gianotti, Massimo; Corti, Corrado; Delle Fratte, Sonia; Di Fabio, Romano; Leslie, Colin P.; Pavone, Francesca; Piccoli, Laura; Stasi, Luigi; Wigglesworth, Mark J. published the artcile< Novel imidazobenzazepine derivatives as dual H1/5-HT2A antagonists for the treatment of sleep disorders>, SDS of cas: 112-63-0, the main research area is imidazo benzazepine derivative preparation dual H1 5HT2A antagonist structure; sleep disorder imidazo benzazepine derivative.

A novel imidazobenzazepine template (5a) with potent dual H1/5-HT2A antagonist activity was identified. Application of a zwitterionic approach to this poorly selective and poorly developable starting point successfully delivered a class of high quality leads, 3-[4-(3-R1-2-R-5H-imidazo[1,2-b][2]benzazepin-11-yl)-1-piperazinyl]-2,2-dimethylpropanoic acids (e.g., 9, 19, 20, and 21), characterized by potent and balanced H1/5-HT2A receptor antagonist activities and good developability profiles.

Bioorganic & Medicinal Chemistry Letters published new progress about 5-HT2A antagonists. 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

Tishinov, Kiril; Schmidt, Kristina; Haeussinger, Daniel; Gillingham, Dennis G. published the artcile< Structure-Selective Catalytic Alkylation of DNA and RNA>, Related Products of 112-63-0, the main research area is structure selectivity catalytic alkylation DNA RNA.

The authors established that rhodium-catalyzed carbene transfer is a viable means of achieving the selective alkylation of a variety of NAs. Moreover its predictable selectivity profile allows the strategic targeting of unpaired nucleobases such as those present in single strands, bulge regions, and overhangs. Key features of the present process are its simplicity and directness: the catalyst is com. available, the diazo compounds are readily prepared, and native NAs are viable substrates. Challenges for future development include further refining the base specificity and achieving efficient alkylation at high dilution Given the enormous excess of water present, the preference for N-H insertion observed here, as well as by others in the protein-labeling field, is intriguing. The new catalytic alkylation process offers a powerful strategy in the labeling and modification of NA derivatives, a strategy which may be applied to the tailoring of DNA architectures and in the labeling of NAs for biol. study or therapeutic applications.

Angewandte Chemie, International Edition published new progress about Alkylation. 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

Toudert, Nadia; Zakkad, Farida; Dadda, Noureddine; Djilani, Abdelouaheb; Dicko, Amadou; Djilani, Salah Eddine published the artcile< Phytochemical analysis of bioactive extracts and seed oil of three euphorbia species from Algerian flora by LC-MS and GC-MS>, Application In Synthesis of 112-63-0, the main research area is euphorbia species seed oil bioactive extract phytochem analysis; phytochem analysis LC GC MS.

Euphorbia species possess pharmacol. properties that have been widely used for medical purposes worldwide. In this paper, three plants belonging to the Euphorbia genus growing in North-East of Algeria were studied. The phenolic contents were identified using LC-MS, while the fatty acid composition of their fixed oils was determined with GC-MS. The quantification of the total condensed tannins and the leaves’ entire anthocyanin content were performed using photometric methods. The main constituents of the polyphenolic compounds identified by LC-MS were ascorbic, chlorogenic, and ellagic acids. The oil yield of the seeds of E. terracina, E. biumbellata, and E. dendroides was 17.48%, 18.5%, and 20.05%, resp. Quant. analyses of these oils using GC-MS showed variations in the species’ fatty acid constituents’ concentrations and compositions Besides, the phytochem. screening results showed that E. terracina possessed a high amount of tannin and anthocyanin content compared with other studied plants.

Indonesian Journal of Chemistry published new progress about Anthocyanins Role: ANT (Analyte), BSU (Biological Study, Unclassified), ANST (Analytical Study), BIOL (Biological Study). 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

Wang, Yaxin; Yang, Le; Liu, Shuai; Huang, Lixia; Liu, Zhong-Quan published the artcile< Surgical Cleavage of Unstrained C(sp3)-C(sp3) Bonds in General Alcohols for Heteroaryl C-H Alkylation and Acylation>, Synthetic Route of 112-63-0, the main research area is alc azaarene iodine promotor photochem Minisci reaction; alkyl azaarene preparation green chem regioselective.

A predictable and surgical cleavage of carbon-carbon bond in alcs. A wide range of 1°, 2° and 3° alcs. including sugars and steroids without ring strain or steric hindrance were all compatible with this system. Also it offered a green and practical strategy for generation of alkyl/acyl radicals using alcs. as the sources. Besides, the features of visible-light-initiation, catalyst and metal free, excellent selectivity and mild conditions made it valuable and attractive.

Advanced Synthesis & Catalysis published new progress about Alcohols 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