Category: esters-buliding-blocks

Dao, Pascal; Smith, Nikaia; Tomkiewicz-Raulet, Celine; Yen-Pon, Expedite; Camacho-Artacho, Marta; Lietha, Daniel; Herbeuval, Jean-Phillipe; Coumoul, Xavier; Garbay, Christiane; Chen, Huixiong published the artcile< Design, Synthesis, and Evaluation of Novel Imidazo[1,2-a][1,3,5]triazines and Their Derivatives as Focal Adhesion Kinase Inhibitors with Antitumor Activity>, Application In Synthesis of 30095-98-8, the main research area is imidazo triazine preparation focal adhesion kinase inhibitor antitumor activity.

A series of triazinic inhibitors of focal adhesion kinase (FAK) have been recently shown to exert antiangiogenic activity against HUVEC cells and anticancer efficacy against several cancer cell lines. We report herein that we further explored the heterocyclic core of these inhibitors by a fused imidazole ring with the triazine to provide imidazo[1,2-a][1,3,5]triazines, e.g., I. Importantly, these new compounds displayed 10-7-10-8 M IC50 values, and the best inhibitor showed IC50 value of 50 nM against FAK enzymic activity. Several inhibitors potently inhibited the proliferation of a panel of cancer cell lines expressing high levels of FAK. Apoptosis anal. in U87-MG and HCT-116 cell lines suggested that these compounds delayed cell cycle progression by arresting cells in the G2/M phase of the cell cycle, retarding cell growth. Further investigation demonstrated that these compounds strongly inhibited cell-matrix adhesion, migration, and invasion of U87-MG cells.

Journal of Medicinal Chemistry published new progress about Antitumor agents. 30095-98-8 belongs to class esters-buliding-blocks, and the molecular formula is C9H9NO4, Application In Synthesis of 30095-98-8.

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

Pasquier, Benoit; El-Ahmad, Youssef; Filoche-Romme, Bruno; Dureuil, Christine; Fassy, Florence; Abecassis, Pierre-Yves; Mathieu, Magali; Bertrand, Thomas; Benard, Tsiala; Barriere, Cedric; El Batti, Samira; Letallec, Jean-Philippe; Sonnefraud, Veronique; Brollo, Maurice; Delbarre, Laurence; Loyau, Veronique; Pilorge, Fabienne; Bertin, Luc; Richepin, Patrick; Arigon, Jerome; Labrosse, Jean-Robert; Clement, Jacques; Durand, Florence; Combet, Romain; Perraut, Pierre; Leroy, Vincent; Gay, Frederic; Lefrancois, Dominique; Bretin, Francois; Marquette, Jean-Pierre; Michot, Nadine; Caron, Anne; Castell, Christelle; Schio, Laurent; McCort, Gary; Goulaouic, Helene; Garcia-Echeverria, Carlos; Ronan, Baptiste published the artcile< Discovery of (2S)-8-[(3R)-3-Methylmorpholin-4-yl]-1-(3-methyl-2-oxobutyl)-2-(trifluoromethyl)-3,4-dihydro-2H-pyrimido[1,2-a]pyrimidin-6-one: A Novel Potent and Selective Inhibitor of Vps34 for the Treatment of Solid Tumors>, Category: esters-buliding-blocks, the main research area is dihydropyrimidopyrimidinone preparation phosphoinositide kinase inhibitor antitumor neoplasm.

Vps34 (the human class III phosphoinositide 3-kinase) is a lipid kinase involved in vesicle trafficking and autophagy and therefore constitutes an interesting target for cancer treatment. Because of the lack of specific Vps34 kinase inhibitors, the authors aimed to identify such compounds to further validate the role of this lipid kinase in cancer maintenance and progression. Herein, the authors report the discovery of a series of tetrahydropyrimidopyrimidinone derivatives Starting with hit compound I, medicinal chem. optimization led to compound 31. This mol. displays potent activity, an exquisite selectivity for Vps34 with excellent properties. The x-ray crystal structure of compound II in human Vps34 illustrates how the unique mol. features of the morpholine synthon bestows selectivity against class I PI3Ks. This mol. exhibits suitable in vivo mouse PK parameters and induces a sustained inhibition of Vps34 upon acute administration. Compound II constitutes an optimized Vps34 inhibitor that could be used to investigate human cancer biol.

Journal of Medicinal Chemistry published new progress about Antitumor 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

Patel, Ashvani Kumar; Rathor, Shikha Singh; Samanta, Sampak published the artcile< Regioselective access to di- and trisubstituted pyridines via a metal-oxidant-solvent-free domino reaction involving 3-chloropropiophenones>, Electric Literature of 94-02-0, the main research area is heterocyclic pyridine preparation regioselective chemoselective green chem; chloropropiophenone ketone tandem reaction.

A remarkable metal-oxidant-solvent- and base-free domino route for regioselective access to a wide range of 2,4-di- and 2,3,4/6-trisubstituted pyridines, e.g., I including carbo- and heterocyclic fused pyridines is reported. This [3C + 2C + 1N] cyclization reaction occurs between 3-chloropropiophenones RC(O)(CH2)2Cl (R = Ph, 4-iodophenyl, 5-methylthiophen-2-yl, etc.) (3C units), enolizable acyclic/cyclic ketones, e.g., 1,2,3,4-tetrahydronaphthalen-1-one (2C sources) and NH4OAc as a robust N source under neat conditions under an open atm., producing new C=C and C=N-C bonds in highly chemo- and regioselective manners. Interestingly, this eco-friendly method has many pos. features: excellent functional group tolerance, broad substrate scope, good to excellent regioselectivities, promising yields, no-unwanted products, neutral reaction conditions and appropriateness for large-scale synthesis. Mechanism studies reveal that the in situ generated å°?amino ketone from 3-chloropropiophenone and an ammonium salt undergoes C=N bond formation with a ketone followed by an intramol. cyclization process (C=C bond), which are the decisive steps for pyridine synthesis.

Organic & Biomolecular Chemistry published new progress about C-C bond formation (cn). 94-02-0 belongs to class esters-buliding-blocks, and the molecular formula is C11H12O3, Electric Literature of 94-02-0.

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

Guimaraes, Cristiano R. W.; Kopecky, David J.; Mihalic, Jeff; Shen, Shanling; Jeffries, Shawn; Thibault, Stephen T.; Chen, Xiaoqi; Walker, Nigel; Cardozo, Mario published the artcile< Thermodynamic Analysis of mRNA Cap Binding by the Human Initiation Factor eIF4E via Free Energy Perturbations>, Quality Control of 112-63-0, the main research area is mRNA cap translation initiation eIF4E free energy model human.

Eukaryotic mRNAs are appended at the 5′ end, with the 7-methylguanosine cap linked by a 5′-5′-triphosphate bridge to the first transcribed nucleoside (m7GpppX). Initiation of cap-dependent translation of mRNA requires direct interaction between the cap structure and the eukaryotic translation initiation factor eIF4E. Biophys. studies of the association between eIF4E and various cap analogs have demonstrated that m7GTP binds to the protein éˆ?5.0 kcal/mol more favorably than unmethylated GTP. In this work, a thermodn. anal. of the binding process between eIF4E and several cap analogs has been conducted using Monte Carlo (MC) simulations in conjunction with free energy perturbation (FEP) calculations To address the role of the 7-Me group in the eIF4E/m7GpppX cap interaction, binding free energies have been computed for m7GTP, GTP, protonated GTP at N(7), the 7-methyldeazaguanosine 5′-triphosphate (m7DTP), and 7-deazaguanosine 5′-triphosphate (DTP) cap analogs. The MC/FEP simulations for the GTP鈫抦7DTP transformation demonstrate that half of the binding free energy gain of m7GTP with respect to GTP can be attributed to favorable van der Waals interactions with Trp166 and reduced desolvation penalty due to the N(7) Me group. The Me group both eliminates the desolvation penalty of the N(7) atom upon binding and creates a larger cavity within the solvent that further facilitates the desolvation step. Anal. of the pair m7GTP-m7DTP suggests that the remaining gain in affinity is related to the pos. charge created on the guanine moiety due to the N(7) methylation. The charge provides favorable cation-èŸ?interactions with Trp56 and Trp102 and decreases the neg. mol. charge, which helps the transfer from the solvent, a more polar environment, to the protein.

Journal of the American Chemical Society published new progress about Cation-pi interaction. 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

Djurovic, Alexandre; Vayer, Marie; Li, Zhilong; Guillot, Regis; Baltaze, Jean-Pierre; Gandon, Vincent; Bour, Christophe published the artcile< Synthesis of Medium-Sized Carbocycles by Gallium-Catalyzed Tandem Carbonyl-Olefin Metathesis/Transfer Hydrogenation>, SDS of cas: 94-02-0, the main research area is medium sized carbocycle preparation; alkenyl ketone preparation tandem metathesis transfer hydrogenation.

The first examples of a catalytic tandem process involving a ring-closing carbonyl-olefin metathesis and a transfer hydrogenation are described. 1,4-Cyclohexadiene has been used as an H2 surrogate to reduce the cyclic alkenes formed after the metathesis step. The same cationic gallium(III) complex, [IPr路GaCl2][SbF6], performs the two steps with functional group tolerance. This stereoselective reaction leads to 1,2-cis-disubstituted cyclopentanes and various cyclohexanes. DFT computations support an unexpected mechanism involving activation of 1,4-cyclohexadiene by superelectrophilic gallium(III) dimers.

Organic Letters published new progress about Diastereoselective synthesis. 94-02-0 belongs to class esters-buliding-blocks, and the molecular formula is C11H12O3, SDS of cas: 94-02-0.

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

Wang, Shengzheng; Fang, Kun; Dong, Guoqiang; Chen, Shuqiang; Liu, Na; Miao, Zhenyuan; Yao, Jianzhong; Li, Jian; Zhang, Wannian; Sheng, Chunquan published the artcile< Scaffold diversity inspired by the natural product evodiamine: discovery of highly potent and multitargeting antitumor agents>, Recommanded Product: Ethyl 3-amino-1H-pyrrole-2-carboxylate, the main research area is evodiamine scaffold antitumor neoplasm.

A critical question in natural product-based drug discovery is how to translate the product into drug-like mols. with optimal pharmacol. properties. The generation of natural product-inspired scaffold diversity is an effective but challenging strategy to investigate the broader chem. space and identify promising drug leads. Extending the efforts to the natural product evodiamine, a diverse library containing 11 evodiamine-inspired novel scaffolds and their derivatives were designed and synthesized. Most of them showed good to excellent antitumor activity against various human cancer cell lines. In particular, 3-chloro-10-hydroxyl thio-evodiamine I showed excellent in vitro and in vivo antitumor efficacy with good tolerability and low toxicity. Antitumor mechanism and target profiling studies indicate that compound I is the first-in-class triple topoisomerase I/topoisomerase II/tubulin inhibitor. Overall, this study provided an effective strategy for natural product-based drug discovery.

Journal of Medicinal Chemistry published new progress about Antitumor agents. 252932-48-2 belongs to class esters-buliding-blocks, and the molecular formula is C7H10N2O2, Recommanded Product: Ethyl 3-amino-1H-pyrrole-2-carboxylate.

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

Bayliak, Maria M.; Vatashchuk, Myroslava V.; Gospodaryov, Dmytro V.; Hurza, Viktoria V.; Demianchuk, Oleh I.; Ivanochko, Marian V.; Burdyliuk, Nadia I.; Storey, Kenneth B.; Lushchak, Oleh; Lushchak, Volodymyr I. published the artcile< High fat high fructose diet induces mild oxidative stress and reorganizes intermediary metabolism in male mouse liver: Alpha-ketoglutarate effects>, Application In Synthesis of 112-63-0, the main research area is oxidative stress high fat fructose diet alpha ketoglutarate metabolism; Alpha-ketoglutarate; Antioxidant enzymes; Fructose; Glycolysis; Liver; Oxidative stress.

Diets rich in fats and/or carbohydrates are used to study obesity and related metabolic complications. We studied the effects of a high fat high fructose diet (HFFD) on intermediary metabolism and the development of oxidative stress in mouse liver and tested the ability of alpha-ketoglutarate to prevent HFFD-induced changes. Male mice were fed a standard diet (10% kcal fat) or HFFD (45% kcal fat, 15% kcal fructose) with or without addition of 1% alpha-ketoglutarate (AKG) in drinking water for 8 wk. The HFFD had no effect on body mass but activated fructolysis and glycolysis and induced inflammation and oxidative stress with a concomitant increase in activity of antioxidant enzymes in the mouse liver. HFFD-fed mice also showed lower mRNA levels of pyruvate dehydrogenase kinase 4 (PDK4) and slightly increased intensity of mitochondrial respiration in liver compared to mice on the standard diet. No significant effects of HFFD on transcription of PDK2 and PGC1ä¼? a peroxisome proliferator-activated receptor co-activator-1ä¼? or protein levels of p-AMPK, an active form of AMP-activated protein kinase, were found. The addition of AKG to HFFD decreased oxidized glutathione levels, did not affect levels of lipid peroxides and PDK4 transcripts but increased activities of hexokinase and phosphofructokinase in mouse liver. Supplementation with AKG had weak modulating effects on HFFD-induced oxidative stress and changes in energetics in mouse liver. Our research expands the understanding of diet-induced metabolic switching and elucidates further roles of alpha-ketoglutarate as a metabolic regulator.

Biochimica et Biophysica Acta, General Subjects published new progress about Antioxidant enzymes Role: BSU (Biological Study, Unclassified), 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

Keshavarz-Maleki, Razieh; Shalmani, Armin Azadkhah; Gholami, Maryam; Sabzevari, Samin; Rahimzadegan, Milad; Jeivad, Fereshteh; Sabzevari, Omid published the artcile< The Ameliorative Effect of Monomethyl Fumarate and Silymarin Against Valproic Acid Induced Hepatotoxicity in Rats>, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is hepatotoxicity monomethyl fumarate silymarin.

Valproic acid (VPA) is a widely-used antiepileptic drug that has been extensively reported to cause hepatotoxicity. Monomethyl fumarate (MMF) is a compound that has been reported to produce hepatoprotective and antioxidant effects. This study was aimed at studying the alleviative effects of MMF on VPA-induced hepatotoxicity in rats. The test animals were divided into nine groups, each of six rats, as different cases and one group as control. VPA was i.p. administered (500 mg/kg) once daily for 7 days. The VPA-exposed rats were then treated with two doses (25 and 50 mg/kg) of MMF and silymarin. Biochem. parameters and oxidative stress markers as well as histopathol. examination were employed to evaluate the effect of these compounds on VPAhepatotoxicity. VPAadministration caused hepatotoxicity in rats as evidenced by significant increase in the levels of aminotransferase (AST), alanine transaminase (ALT), alk. phosphatase (ALP), lactate dehydrogenase (LDH), liver malondialdehyde (MDA), and significant reduction in glutathione (GSH) content compared to values in the control group. The administration of MMF or silymarin attenuated VPA-induced oxidative hepatotoxicity as evidenced by significant decrease in serum liver function tests together with marked improvement in oxidative stress markers. Thus, the treatment with MMF and/or silymarin improved histopathol. patterns of liver tissue to a considerable degree. MMF treatment can exert protective effects (similar to those of silymarin) against VPA-induced hepatotoxicity. This amelioration can result from a considerable reduction of the oxidative stress. Moreover, a combination therapy was more effective than MMF or silymarin monotherapy alone. A dose of 25 mg/kg was as effective as 50 mg/kg for either MMF or silymarin.

Pharmaceutical Chemistry Journal published new progress about Blood serum. 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

Bei, Jiaxin; Zhu, Shaoping; Du, Minqun; Hu, Zhihui; Tang, Zheng; Chen, Cailing; Yang, Kevin; Zhong, Ying; Zhu, Xianhong; Li, Wangen; Hu, Zhuoqing published the artcile< Integrative analysis of multiomics data identified acetylation as key variable of excessive energy metabolism in hyperthyroidism-induced osteoporosis rats>, Category: esters-buliding-blocks, the main research area is hyperthyroidism osteoporosis rat acetylation energy metabolism multiomics; Acetylation; Hyperthyroidism; Metabolism; Osteoporosis.

Results from the previous experiment have demonstrated bone loss and excess metabolism in Hyperthyroidism-induced rats. Thus, an underlying relationship between metabolism and bone loss was speculated. In addition, previous studies have shown the influence of acetylation on metabolism in tissues and diseases. The hypothesis from this case study suggests that excessive metabolism is induced by acetylation of vital metabolism enzymes. In the case study, a HYP-induced osteoporosis rat model was used and the glucose metabolite was tested through the acetylation of proteins by the mass spectrometer. The results showed that pivotal enzymes of Glycolysis-Tricarboxylic acid cycle-Oxidative phosphorylation were acetylated along with upregulated metabolites. With all acetyly-lysine sites of related enzymes listed, the results in this study showed that bone loss in HYP rats was accompanied by the upregulation of CREB-binding protein (Crebbp, CBP). Furthermore, it is also indicated that CBP has a close relationship with the enhancement of LDHA which promotes glucose metabolism Acetylation is highly correlated with excessive energy metabolism in HYP-induced osteoporotic rats, where a representation relationship between CBP and LDHA is demonstrated. Hyperthyroidism may lead to osteoporosis. Our study found an interesting phenomenon of hyperthyroidism induced-osteoporosis is that osteoporosis is accompanied by excessive glucose metabolism In this process, some mol. mechanisms are still unclear. This study indicates a high degree of acetylation of metabolic enzymes, which may be closely related to excessive glucose metabolism The relationship between CBP and LDHA was also investigated in this study, which showed that CBP and LDHA had some extent interaction. Glucose metabolism and acetylation maybe all associated with hyperthyroidism induced-osteoporosis. This data provides new insights into the mol. mechanisms of hyperthyroidism induced-osteoporosis.

Journal of Proteomics published new progress about Acetylation. 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

Villani, Frank J.; Wefer, Elizabeth A.; Mann, Thomas A.; Mayer, Joseph; Peer, Lydia; Levy, Alfred S. published the artcile< Derivatives of 10, 11-dihydro-5H-benzo(a,d)cycloheptane and related compounds. VII. Improved syntheses of 11-H-benzo(5,6)cyclohepta(1,2-c)pyridin-11-one>, SDS of cas: 33402-75-4, the main research area is benzocycloheptapyridine; nicotinamide styryl thienyl; nicotinate styryl benzocycloheptapyridine.

An improved synthesis of the title compound (I) was described. The base-catalyzed condensation of 4-methylnicotinonitrile with PhCHO resulted in the isolation of trans-4-styrylnicotinamide (II, R = NH2) in high yield. Hydrolysis to II (R = OH) and heating with polyphosphoric acid gave I in good yields. Even higher yields of I were obtained in the presence of catalytic quantities of selenium. Also described are two other syntheses of the title compound and the preparation of a series of compounds related to II.

Journal of Heterocyclic Chemistry published new progress about Condensation reaction. 33402-75-4 belongs to class esters-buliding-blocks, and the molecular formula is C8H9NO2, SDS of cas: 33402-75-4.

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