Category: esters-buliding-blocks

The author of 《Design, synthesis, and biological evaluation of novel 4-phenoxypyridine derivatives as potential antitumor agents》 were Liu, Ju; Liu, Yutong; Hao, Xuechen; Wang, Yang; Ji, Jingchao; Liu, Yajing; Ding, Shi; Chen, Ye. And the article was published in Archiv der Pharmazie (Weinheim, Germany) in 2019. Synthetic Route of C7H12O3 The author mentioned the following in the article:

A series of novel 4-phenoxypyridine derivatives containing the 4-oxo-1,4-dihydropyridazine-3-carboxamide moiety were synthesized and evaluated for their in vitro cytotoxic activity against the A549 cancer cell line, and some compounds were further examined for their cytotoxic activity against the H460, BGC823, MKN45, and HT-29 cancer cell lines. Most of the compounds exhibited moderate to significant cytotoxicity. The most promising compound 15b (with VEGFR2 inhibitory concentration [IC50] value of 0.23 μM) showed remarkable cytotoxicity against A549, BGC-823, MKN45, H460, and HT-29 cells, with IC50 values of 0.75, 1.68, 2.63, 5.08 and 7.22 μM, resp. Their preliminary structure-activity relationship studies indicate that electron-withdrawing groups on the terminal Ph rings are beneficial for improving the antitumor activity. Moreover, treatment of A549 cells with compound 15b resulted in cell cycle arrest in the G0/G1 phase in a dose-dependent manner. Further apoptotic studies and acridine orange/ethidium bromide staining were also performed on A549 cells, which showed that compound 15b could induce apoptosis. Wound-healing assay results indicated that compound 15b strongly inhibited A549 cell motility. In addition to this study using Ethyl 3-oxopentanoate, there are many other studies that have used Ethyl 3-oxopentanoate(cas: 4949-44-4Synthetic Route of C7H12O3) was used in this study.

Ethyl 3-oxopentanoate(cas: 4949-44-4) belongs to ketone compounds. They are most widely used as solvents, especially in industries manufacturing explosives, lacquers, paints, and textiles. Ketones are also used in tanning, as preservatives, and in hydraulic fluids.Synthetic Route of C7H12O3

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

The author of 《Ethynylbenziodazolones (EBZ) as Electrophilic Alkynylation Reagents for the Highly Enantioselective Copper-Catalyzed Oxyalkynylation of Diazo Compounds》 were Hari, Durga Prasad; Schouwey, Lionel; Barber, Verity; Scopelliti, Rosario; Fadaei-Tirani, Farzaneh; Waser, Jerome. And the article was published in Chemistry – A European Journal in 2019. Computed Properties of C8H14O4 The author mentioned the following in the article:

The first synthesis was reported for the corresponding ethynylbenziodazolone (EBZ) reagents, in which the oxygen atom in the iodoheterocycle was replaced by a nitrogen atom. The substituent on the nitrogen enabled further fine-tuning of the reagent structure and reactivity. EBZ reagents were obtained easily from the corresponding benzamides by using a one-step procedure and displayed reactivity comparable to that of EBX reagents. In particular, they were applied in an asym. copper-catalyzed oxyalkynylation of diazo compounds, which proceeded in high yield and enantioselectivity for a broad range of substituents on the diazo compounds and the alkyne.Diethyl 2-methylmalonate(cas: 609-08-5Computed Properties of C8H14O4) was used in this study.

Diethyl 2-methylmalonate(cas: 609-08-5) belongs to aliphatic hydrocarbons. Aliphatic hydrocarbons belong to the most abundant fraction in crude oil. Aliphatics molecules are linear or branched open-chain structures such as n-alkanes, isoalkanes, cycloalkanes (naphthenes), terpenes and steranes.Computed Properties of C8H14O4

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

In 2017,Follmann, Markus; Ackerstaff, Jens; Redlich, Gorden; Wunder, Frank; Lang, Dieter; Kern, Armin; Fey, Peter; Griebenow, Nils; Kroh, Walter; Becker-Pelster, Eva-Maria; Kretschmer, Axel; Geiss, Volker; Li, Volkhart; Straub, Alexander; Mittendorf, Joachim; Jautelat, Rolf; Schirok, Hartmut; Schlemmer, Karl-Heinz; Lustig, Klemens; Gerisch, Michael; Knorr, Andreas; Tinel, Hanna; Mondritzki, Thomas; Truebel, Hubert; Sandner, Peter; Stasch, Johannes-Peter published 《Discovery of the Soluble Guanylate Cyclase Stimulator Vericiguat (BAY 1021189) for the Treatment of Chronic Heart Failure》.Journal of Medicinal Chemistry published the findings.Application of 16982-21-1 The information in the text is summarized as follows:

The first-in-class soluble guanylate cyclase (sGC) stimulator riociguat was recently introduced as a novel treatment option for pulmonary hypertension. Despite its outstanding pharmacol. profile, application of riociguat in other cardiovascular indications is limited by its short half-life, necessitating a three times daily dosing regimen. In our efforts to further optimize the compound class, we have uncovered interesting structure-activity relationships and were able to decrease oxidative metabolism significantly. These studies resulting in the discovery of once daily sGC stimulator vericiguat (compound 24, BAY 1021189), currently in phase 3 trials for chronic heart failure, are now reported. In the experimental materials used by the author, we found Ethyl 2-amino-2-thioxoacetate(cas: 16982-21-1Application of 16982-21-1)

Ethyl 2-amino-2-thioxoacetate(cas: 16982-21-1) belongs to anime. Acylation is one of the most important reactions of primary and secondary amines; a hydrogen atom is replaced by an acyl group (a group derived from an acid, such as RCOOH or RSO3H, by removal of ―OH, such as RC(=O)―, RS(O)2―, and so on). Reagents may be acid chlorides (RCOC1, RSO2C1), anhydrides ((RCO)2O), or even esters (RCOOR′); the products are amides of the corresponding acids.Application of 16982-21-1

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

In 2013,Ndubaku, Chudi O.; Heffron, Timothy P.; Staben, Steven T.; Baumgardner, Matthew; Blaquiere, Nicole; Bradley, Erin; Bull, Richard; Do, Steven; Dotson, Jennafer; Dudley, Danette; Edgar, Kyle A.; Friedman, Lori S.; Goldsmith, Richard; Heald, Robert A.; Kolesnikov, Aleksandr; Lee, Leslie; Lewis, Cristina; Nannini, Michelle; Nonomiya, Jim; Pang, Jodie; Price, Steve; Prior, Wei Wei; Salphati, Laurent; Sideris, Steve; Wallin, Jeffery J.; Wang, Lan; Wei, BinQing; Sampath, Deepak; Olivero, Alan G. published 《Discovery of 2-{3-[2-(1-Isopropyl-3-methyl-1H-1,2-4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-9-yl]-1H-pyrazol-1-yl}-2-methylpropanamide (GDC-0032): A β-Sparing Phosphoinositide 3-Kinase Inhibitor with High Unbound Exposure and Robust in Vivo Antitumor Activity》.Journal of Medicinal Chemistry published the findings.Application In Synthesis of Ethyl 2-amino-2-thioxoacetate The information in the text is summarized as follows:

Dysfunctional signaling through the phosphoinositide 3-kinase (PI3K)/AKT/mTOR pathway leads to uncontrolled tumor proliferation. In the course of the discovery of novel benzoxepin PI3K inhibitors, we observed a strong dependency of in vivo antitumor activity on the free-drug exposure. By lowering the intrinsic clearance, we derived a set of imidazobenzoxazepin compounds that showed improved unbound drug exposure and effectively suppressed growth of tumors in a mouse xenograft model at low drug dose levels. One of these compounds, GDC-0032 (I), was progressed to clin. trials and is currently under phase I evaluation as a potential treatment for human malignancies. The experimental process involved the reaction of Ethyl 2-amino-2-thioxoacetate(cas: 16982-21-1Application In Synthesis of Ethyl 2-amino-2-thioxoacetate)

Ethyl 2-amino-2-thioxoacetate(cas: 16982-21-1) belongs to anime. Primary amines having a tertiary alkyl group (R3CNH2) are difficult to prepare with most methods but are made industrially by the Ritter reaction. In this method a tertiary alcohol reacts with hydrogen cyanide (HCN) in the presence of a concentrated strong acid; a formamide, RNH―CHO, is formed first, which then undergoes hydrolysis.Application In Synthesis of Ethyl 2-amino-2-thioxoacetate

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

In 2011,Newton, Gerald L.; Buchmeier, Nancy; La Clair, James J.; Fahey, Robert C. published 《Evaluation of NTF1836 as an inhibitor of the mycothiol biosynthetic enzyme MshC in growing and non-replicating Mycobacterium tuberculosis》.Bioorganic & Medicinal Chemistry published the findings.Recommanded Product: 329-59-9 The information in the text is summarized as follows:

The mycothiol biosynthesis enzyme MshC catalyzes the ligation of cysteine with the pseudodisaccharide GlcN-Ins and has been identified as an essential enzyme in Mycobacterium tuberculosis. The authors now report on the development of NTF1836 as a micromolar inhibitor of MshC. Using com. libraries, they conducted preliminary structure-activity relationship (SAR) studies on NTF1836. NTF1836 and five structurally related compounds showed similar activity towards clin. strains of M. tuberculosis. A gram scale synthesis was developed to provide ample material for biol. studies. Using this material, the authors determined that inhibition of M. tuberculosis growth by NTF1836 was accompanied by a fall in mycothiol and an increase in GlcN-Ins consistent with the targeting of MshC. They also determined that NTF1836 kills non-replicating M. tuberculosis in the carbon starvation model of latency. The experimental part of the paper was very detailed, including the reaction process of Methyl 4-fluoro-3-nitrobenzoate(cas: 329-59-9Recommanded Product: 329-59-9)

Methyl 4-fluoro-3-nitrobenzoate(cas: 329-59-9) belongs to methyl benzoate. Methyl benzoate reacts at both the ring and the ester, depending on the substrate. Electrophiles attack the ring, illustrated by acid-catalysed nitration with nitric acid to give methyl 3-nitrobenzoate.Recommanded Product: 329-59-9

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

In 2007,Cordeiro, Alessandra; Jimeno, Maria Luisa; Maestro, Miguel A.; Camarasa, Maria-Jose; Quesada, Ernesto; San-Felix, Ana published 《Synthesis of Highly Condensed Polycyclic Carbohydrates by Reaction of a Spiro-Cyclic Enamino Sulfonate Derived from D-Xylofuranose with Bifunctional Reagents》.Journal of Organic Chemistry published the findings.HPLC of Formula: 6149-41-3 The information in the text is summarized as follows:

The appropriately substituted 5-O-tosyl derivative I, easily prepared from 1,2-O-isopropylidene-α-D-xylofuranose, serves as a useful precursor for the preparation of highly condensed cyclic carbohydrates. The synthesis involves a first cyclization of the 5-O-tosyl sugar derivative I to a highly reactive cyclic enamine, which subsequently undergoes the nucleophilic attack of a bifunctional reagent X(CH2)nZ in a regio- and stereospecific way. Finally, a spontaneous cyclization step allows the formation of a stereochem. defined extra ring, fused to the sugar backbone. The functionalization and size of this ring can be varied by the proper choice of the bifunctional reagent. X-ray diffraction anal. and intensive NMR studies with one of these carbohydrates II were performed to highlight the strained nature of these compounds The results came from multiple reactions, including the reaction of Methyl 3-hydroxypropanoate(cas: 6149-41-3HPLC of Formula: 6149-41-3)

Methyl 3-hydroxypropanoate(cas: 6149-41-3) belongs to esters with low molecular weight are commonly used as fragrances and found in essential oils and pheromones. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. HPLC of Formula: 6149-41-3

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

Qian, Xing-Kai; Zhang, Jing; Song, Pei-Fang; Zhao, Yi-Su; Ma, Hong-Ying; Jin, Qiang; Wang, Dan-Dan; Guan, Xiao-Qing; Li, Shi-Yang; Bao, XiaoZe; Zou, Li-Wei published an article in Bioorganic & Medicinal Chemistry. The title of the article was 《Discovery of pyrazolones as novel carboxylesterase 2 inhibitors that potently inhibit the adipogenesis in cells》.Safety of Methyl 3-oxovalerate The author mentioned the following in the article:

Carboxylesterase 2 (CES2) is one of the most important Phase I drug metabolizing enzymes in the carboxylesterase family. It plays crucial roles in the bioavailability of oral ester prodrugs and the therapeutic effect of some anticancer drugs such as irinotecan (CPT11) and capecitabine. In addition to the well-known roles of CES2 in xenobiotic metabolism, the enzyme also participates in endogenous metabolism and the production of lipids. In this study, we synthesized a series of pyrazolones and assayed their inhibitory effects against CES2 in vitro. Structure-activity relationship anal. of these pyrazolones (I) reveals that the introduction of 4-methylphenyl unit (R1), 4-methylbenzyl (R2) and cyclohexyl (R3) moieties are beneficial for CES2 inhibition. Guided by these SARs results, 1-cyclohexyl-4-(4-methylbenzyl)-3-p-tolyl-1H-pyrazol-5(4H)-one (27, II) was designed and synthesized. Further investigations demonstrated that the compound 27 exhibited stronger CES2 inhibition activity with a lower IC50 value (0.13μM). The inhibition kinetic study demonstrated that compound 27 inhibited the hydrolysis of CES2-fluorescein diacetate (FD) through non-competitive inhibition. In addition, the mol. docking showed that the core of pyrazolone, the cyclohexane moiety, 4-methylbenzyl and 4-methylphenyl groups in compound 27 all played important roles with the amino acid residues of CSE2. Also, compound 27 could inhibit adipocyte adipogenesis induced by mouse preadipocytes. In brief, we designed and synthesized a novel pyrazolone compound with a strong inhibitory ability on CES2 and could inhibit the adipogenesis induced by mouse preadipocytes, which can be served as a promising lead compound for the development of more potent pyrazolone-type CES2 inhibitors, and also used as a potential tool for exploring the biol. functions of CES2 in human being. In the experimental materials used by the author, we found Methyl 3-oxovalerate(cas: 30414-53-0Safety of Methyl 3-oxovalerate)

Methyl 3-oxovalerate(cas: 30414-53-0) belongs to ketone compounds. Ketone compounds have important physiological properties. They are found in several sugars and in compounds for medicinal use, including natural and synthetic steroid hormones. Molecules of the anti-inflammatory agent cortisone contain three ketone groups.Safety of Methyl 3-oxovalerate

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

In 1984,Australian Journal of Chemistry included an article by Babidge, Peter J.; Massy-Westropp, Ralph A.. Computed Properties of C8H14O3. The article was titled 《New eudesmane sesquiterpenoids from Eremophila scoparia》. The information in the text is summarized as follows:

Three new eudesmane sesquiterpenoids were isolated from E. scoparia and identified as (4aR,6S,7S,8aS)-7-hydroxy-6-(1-hydroxy-1-methylethyl)-4,8a-dimethyl-4a,5,6,7,8,8a-hexahydronaphthalen-2(1H)-one, (4aS,6S,7S,8aS)-7-hydroxy-6-(1-hydroxy-1-methylethyl)-4,8a-dimethyl-4a,5,6,7,8,8a-hexahydronaphthalen-2(1H)-one, and (2S,3S,4aR,8aS)-3-(1-hydroxy-1-methylethyl)-5,8a-dimethyl-7-oxo-1,2,3,4,4a,7,8,8a-octahydronaphthalen-2-yl acetate. The results came from multiple reactions, including the reaction of Cis-methyl 2-hydroxycyclohexanecarboxylate(cas: 936-03-8Computed Properties of C8H14O3)

Cis-methyl 2-hydroxycyclohexanecarboxylate(cas: 936-03-8) belongs to esters. They are important in biology, being one of the main classes of lipids and comprising the bulk of animal fats and vegetable oils.Computed Properties of C8H14O3 They perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties.

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

Recommanded Product: Ethyl (2S)-2-amino-3,3-dimethylbutanoateOn May 31, 1997, Hiroi, Kunio; Hidaka, Akira; Sezaki, Rie; Imamura, Yumiko published an article in Chemical & Pharmaceutical Bulletin. The article was 《Asymmetric induction reactions. VII. Palladium-catalyzed asymmetric α-allylations of carbonyl compounds using chiral sulfonamides as chiral ligands》. The article mentions the following:

Palladium-catalyzed asym. α-allylations of carbonyl compounds were studied using various kinds of chiral sulfonamides derived from optically active α-amino acids as chiral ligands. Participation of the sulfonamide functionality in the palladium catalysis is discussed. After reading the article, we found that the author used Ethyl (2S)-2-amino-3,3-dimethylbutanoate(cas: 69557-34-2Recommanded Product: Ethyl (2S)-2-amino-3,3-dimethylbutanoate)

Ethyl (2S)-2-amino-3,3-dimethylbutanoate(cas: 69557-34-2) belongs to esters.Recommanded Product: Ethyl (2S)-2-amino-3,3-dimethylbutanoate They are important in biology, being one of the main classes of lipids and comprising the bulk of animal fats and vegetable oils.Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones.

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

Name: Ethyl 1-methylcyclopentanecarboxylateOn September 30, 1994 ,《Carbonylation of methylcyclopentane and cyclohexane initiated by the aprotic organic superacid CBr4·2AlBr3》 was published in Mendeleev Communications. The article was written by Bernadyuk, Stanislav Z.; Akhrem, Irena S.; Vol’pin, Mark E.. The article contains the following contents:

The aprotic organic superacid CBr4·2AlBr3 initiates carbonylation of methylcyclopentane and cyclohexane with CO at atm. pressure with formation (after EtOH treatment) of various products in high yields depending on the conditions. The products are Et 1-methylcyclopentanecarboxylate (at -45°), Et cyclohexanecarboxylate (at 0°) and 2-methylcyclohexanone (at -23°). The reaction mechanism is discussed. The results came from multiple reactions, including the reaction of Ethyl 1-methylcyclopentanecarboxylate(cas: 6553-72-6Name: Ethyl 1-methylcyclopentanecarboxylate)

Ethyl 1-methylcyclopentanecarboxylate(cas: 6553-72-6) is a member of cyclopentanes. Although cyclopentane itself doesn’t have a single highly favoured conformation, a substituent on the cyclopentane ring can upset the balance of strains thereby favouring either the envelope or the half-chair.Name: Ethyl 1-methylcyclopentanecarboxylate

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