Tag: 100-200

In 2022,Serusi, Lorenzo; Palombi, Laura; Pierri, Giovanni; Mola, Antonia Di; Massa, Antonio published an article in Journal of Organic Chemistry. The title of the article was 《Asymmetric Cascade Aza-Henry/Lactamization Reaction in the Highly Enantioselective Organocatalytic Synthesis of 3-(Nitromethyl)isoindolin-1-ones from α-Amido Sulfones》.SDS of cas: 4248-19-5 The author mentioned the following in the article:

The asym. synthesis of novel 3-substituted isoindolinones, e.g., I was herein reported. A new cascade reaction was developed that consisted of the asym. nitro-Mannich reaction of suitable α-amido sulfones designed from 2-formyl benzoates, followed by the in situ cyclization of the adducts. Very high enantioselectivities, up to 98% ee, and very good yields were obtained in the presence of the readily available neutral bifunctional organocatalyst derived from trans-1,2-diaminocyclohexane, which was known as Takemoto’s catalyst. The investigation of the reactivity of the obtained products allowed either the selective Boc-deprotection or reduction of the nitro group, leading to further functionalized 3-substituted isoindolinones without affecting the enantiomeric purity. The results came from multiple reactions, including the reaction of tert-Butyl carbamate(cas: 4248-19-5SDS of cas: 4248-19-5)

tert-Butyl carbamate(cas: 4248-19-5) belongs to anime. Amines characteristically form salts with acids; a hydrogen ion, H+, adds to the nitrogen. With the strong mineral acids (e.g., H2SO4, HNO3, and HCl), the reaction is vigorous. Salt formation is instantly reversed by strong bases such as NaOH. Neutral electrophiles (compounds attracted to regions of negative charge) also react with amines; alkyl halides (R′X) and analogous alkylating agents are important examples of electrophilic reagents.SDS of cas: 4248-19-5

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

In 2022,Xiang, Qiuping; Wang, Chao; Wu, Tianbang; Zhang, Cheng; Hu, Qingqing; Luo, Guolong; Hu, Jiankang; Zhuang, Xiaoxi; Zou, Lingjiao; Shen, Hui; Wu, Xishan; Zhang, Yan; Kong, Xiangqian; Liu, Jinsong; Xu, Yong published an article in Journal of Medicinal Chemistry. The title of the article was 《Design, Synthesis, and Biological Evaluation of 1-(Indolizin-3-yl)ethan-1-ones as CBP Bromodomain Inhibitors for the Treatment of Prostate Cancer》.SDS of cas: 329-59-9 The author mentioned the following in the article:

Herein, the structural optimization of a series of 1-(indolizin-3-yl)ethan-1-one compounds I (R1 = Me, Et, NHMe, i-Pr, t-Bu, cyclopropyl; R2 = Me, Et, MeO, OH, NH2, PhCH2O, t-BuCO2, etc.; R3 = F, Cl, CH2OH, etc.; R4 = Me, cyclopropyl) as new selective CBP bromodomain inhibitors, aiming to improve cellular potency and metabolic stability, is reported. This process led to the compound I [R1 = Me; R2 = MeO; R3 = CH(OH)Me; R4 = cyclopropyl], which possesses good liver microsomal stability and pharmacokinetic properties (F = 25.9%). Furthermore, this compound is able to inhibit CBP bromodomain as well as the proliferation, colony formation, and migration of prostate cancer cells. Addnl., the new inhibitor shows promising antitumor efficacy in a 22Rv1 xenograft model (TGI = 88%). This study provides new lead compounds for further development of drugs for the treatment of prostate cancer. The experimental process involved the reaction of Methyl 4-fluoro-3-nitrobenzoate(cas: 329-59-9SDS of cas: 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.SDS of cas: 329-59-9

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

In 2022,Verdi, Camila Marina; Machado, Vanessa Schopf; Machado, Alencar Kolinsk; Klein, Bruna; Bonez, Pauline Cordenonsi; de Andrade, Eduardo Nascimento Correa; Rossi, Grazielle; Campos, Marli Matiko; Wagner, Roger; Sagrillo, Michele Rorato; Santos, Roberto Christ Vianna published an article in Natural Product Research. The title of the article was 《Phytochemical characterization, genotoxicity, cytotoxicity, and antimicrobial activity of Gautheria procumbens essential oil》.Category: esters-buliding-blocks The author mentioned the following in the article:

This study investigated the chem. constituents of Gaultheria procumbens essential oil and is the first to relate cytogenotoxicity with oxidative metabolism and antimicrobial activity. Chromatog. anal. of the essential oil showed Me salicylate (99.96%) and linalool (0.04%) as the major compounds The essential oil showed no signs of cytogenotoxicity at different concentrations (1.82 to 58.34 mg mL-1). Furthermore, G. procumbens essential oil and Me salicylate were used to evaluate the minimal inhibitory concentrations (MIC) and minimal microbicidal concentrations (MMC). The results showed efficacy against several microorganisms, including Aeromonas caviae, Candida albicans, and Mycobacterium fortuitum with MIC values ranging from 1.82 to 3.64 mg mL-1 and MMC values ranging from 3.64 to 12.67 mg mL-1, which were confirmed by time-kill kinetics. Based on our results, the essential oil is a promising alternative to developing future formulations to treat infections caused by microorganisms. In the experimental materials used by the author, we found Methyl Salicylate(cas: 119-36-8Category: esters-buliding-blocks)

Methyl Salicylate(cas: 119-36-8) has been used: as a component of clarifying solution for treating Mongolian gerbil cochlea intact for immunofluorescence analysis, as a plant elicitor to test its effect on reducing the whitefly population from tomato plants.Category: esters-buliding-blocks

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

In 2022,Fayed, Eman A.; Mohsen, Marwa; El-Gilil, Shimaa M. Abd; Aboul-Magd, Dina S.; Ragab, Ahmed published an article in Journal of Molecular Structure. The title of the article was 《Novel cyclohepta[b]thiophene derivative incorporating pyrimidine, pyridine, and chromene moiety as potential antimicrobial agents targeting DNA gyrase》.Category: esters-buliding-blocks The author mentioned the following in the article:

To cultivate novel and effectual antimicrobial agents, the triumphant synthesis of a novel class of cyclohepta-thieno-pyrimidines, I, II [R = Me, 4-MeC6H4, 4-ClC6H4, etc.; R1 = Me, NC, H2OC], cyclohepta[b]thiophene appended 2-imino-2H-chromene-3-carboxamide and 3-imino-3H-benzo[f]chromene-2-carboxamide derivatives , III [R2 = H; R3 = H, Br; R2R3 = C4H4] were presented to enrich their biol. behavior. The desired mols. underwent in-vitro appraisal for their antimicrobial activity, demonstrating encouraging results. Besides, the time-kill kinetics, antibiofilm activity and the DNA gyrase inhibition of the active thiophene compounds were evaluated. The DNA gyrase inhibition by the active thiophenes was also determined with IC50 values to range between (5.3-18.7μM) compared with Levofloxacin and Ciprofloxacin. Also, the sum of the Fractional Inhibitory Concentration Index (ΣFICI) was used to assess synergy between thiophenes and Levofloxacin. Addnl., the antimicrobial activity of the most active thiophene derivative was analyzed after γ-irradiation Moreover, the in-silico prediction methodol. was contemplated for foretelling the physicochem., pharmacokinetic and ADME traits of the most active synthesized compounds and the standard reference drugs: Levofloxacin and Ciprofloxacin. The docking examination was carried out for the most promising derivatives, I, III [R2 = R3 = H] IV [R4 = H2N, (2-cyanoacetyl)amino, (2-chloroacetyl)amino], Novobiocin, and Levofloxacin inside the active site of DNA gyrase, and their resp. docking scores were contrasted with the scores of the above-mentioned standard drugs. In the experiment, the researchers used many compounds, for example, Ethyl 2-methyl-3-oxobutanoate(cas: 609-14-3Category: esters-buliding-blocks)

Ethyl 2-methyl-3-oxobutanoate(cas: 609-14-3) belongs to ketone compounds. Ketones are highly reactive, although less so than aldehydes, to which they are closely related. Much of their chemical activity results from the nature of the carbonyl group. Ketones readily undergo a wide variety of chemical reactions.Category: esters-buliding-blocks

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

Li, Xue-Hong; Gong, Jun-Fang; Song, Mao-Ping published an article in 2021. The article was titled 《Diastereoselective synthesis of chiral 3-substituted isoindolinones via rhodium(III)-catalyzed oxidative C-H olefination/annulation》, and you may find the article in Organic & Biomolecular Chemistry.Formula: C8H7FO2 The information in the text is summarized as follows:

A new method for the direct and stereoselective synthesis of 3-substituted isoindolinones via Rh(III)-catalyzed chiral N-sulfinyl amide directed asym. [4 + 1] annulation of benzamides with acrylic esters has been developed. The reaction proceeded through an oxidative C-H olefination and a subsequent cyclization by intramol. aza-Michael addition, producing a series of diastereoisomeric chiral isoindolinones (20 examples) in generally good yields with a dr value up to 5.5 : 1. The absolute configurations of the newly formed C-stereocenters in the major and minor diastereomers of the catalysis product have been determined by X-ray crystal diffraction anal. to be S and R, resp. The separation of the major diastereoisomers from the catalysis products and subsequent removal of the N-sulfinyl chiral auxiliary afforded enantiomerically pure (S)-isoindolinones. The application of the obtained (S)-isoindolinones in the synthesis of several biol. active isoindolinones such as (S)-PD172938, (S)-pazinaclone and (S)-pagoclone is presented. In addition to this study using Methyl 4-fluorobenzoate, there are many other studies that have used Methyl 4-fluorobenzoate(cas: 403-33-8Formula: C8H7FO2) was used in this study.

Methyl 4-fluorobenzoate(cas: 403-33-8) can be used in the synthesis of trisubstituted imidazole derivatives containing a 4-fluorophenyl group, a pyrimidine ring, and a CN- or CONH2-substituted benzyl moiety.Formula: C8H7FO2

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

Rabal, Obdulia; San Jose-Eneriz, Edurne; Agirre, Xabier; Sanchez-Arias, Juan Antonio; de Miguel, Irene; Ordonez, Raquel; Garate, Leire; Miranda, Estibaliz; Saez, Elena; Vilas-Zornoza, Amaia; Pineda-Lucena, Antonio; Estella, Ander; Zhang, Feifei; Wu, Wei; Xu, Musheng; Prosper, Felipe; Oyarzabal, Julen published an article in 2021. The article was titled 《Design and Synthesis of Novel Epigenetic Inhibitors Targeting Histone Deacetylases, DNA Methyltransferase 1, and Lysine Methyltransferase G9a with In Vivo Efficacy in Multiple Myeloma》, and you may find the article in Journal of Medicinal Chemistry.HPLC of Formula: 403-33-8 The information in the text is summarized as follows:

Concomitant inhibition of key epigenetic pathways involved in silencing tumor suppressor genes has been recognized as a promising strategy for cancer therapy. Herein, we report a first-in-class series of quinoline-based analogs that simultaneously inhibit histone deacetylases (from a low nanomolar range) and DNA methyltransferase-1 (from a mid-nanomolar range, IC50 < 200 nM). Addnl., lysine methyltransferase G9a inhibitory activity is achieved (from a low nanomolar range) by introduction of a key lysine mimic group at the 7-position of the quinoline ring. The corresponding epigenetic functional cellular responses are observed: histone-3 acetylation, DNA hypomethylation, and decreased histone-3 methylation at lysine-9. These chem. probes, multi-target epigenetic inhibitors, were validated against the multiple myeloma cell line MM1.S, demonstrating promising in vitro activity of 12a (CM-444) with GI50 of 32 nM, an adequate therapeutic window (>1 log unit), and a suitable pharmacokinetic profile. In vivo, 12a achieved significant antitumor efficacy in a xenograft mouse model of human multiple myeloma. The experimental process involved the reaction of Methyl 4-fluorobenzoate(cas: 403-33-8HPLC of Formula: 403-33-8)

Methyl 4-fluorobenzoate(cas: 403-33-8) can be used in the synthesis of trisubstituted imidazole derivatives containing a 4-fluorophenyl group, a pyrimidine ring, and a CN- or CONH2-substituted benzyl moiety.HPLC of Formula: 403-33-8

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

Wang, Congcong; Zhang, Yu-Fang; Guo, Shimeng; Zhao, Quan; Zeng, Yanping; Xie, Zhicheng; Xie, Xin; Lu, Boxun; Hu, Youhong published an article in 2021. The article was titled 《GPR52 Antagonist Reduces Huntingtin Levels and Ameliorates Huntington’s Disease-Related Phenotypes》, and you may find the article in Journal of Medicinal Chemistry.Application of 403-33-8 The information in the text is summarized as follows:

GPR52 is an orphan G protein-coupled receptor (GPCR) that has been recently implicated as a potential drug target of Huntington’s disease (HD), an incurable monogenic neurodegenerative disorder. In this research, we found that striatal knockdown of GPR52 reduces mHTT levels in adult HdhQ140 mice, validating GPR52 as an HD target. In addition, we discovered a highly potent and specific GPR52 antagonist Comp-43 with an IC50 value of 0.63μM by a structure-activity relationship (SAR) study. Further studies showed that Comp-43 reduces mHTT levels by targeting GPR52 and promotes survival of mouse primary striatal neurons. Moreover, in vivo study showed that Comp-43 not only reduces mHTT levels but also rescues HD-related phenotypes in HdhQ140 mice. Taken together, our study confirms that inhibition of GPR52 is a promising strategy for HD therapy, and the GPR52 antagonist Comp-43 might serve as a lead compound for further investigation. In addition to this study using Methyl 4-fluorobenzoate, there are many other studies that have used Methyl 4-fluorobenzoate(cas: 403-33-8Application of 403-33-8) was used in this study.

Methyl 4-fluorobenzoate(cas: 403-33-8) can be used in the synthesis of trisubstituted imidazole derivatives containing a 4-fluorophenyl group, a pyrimidine ring, and a CN- or CONH2-substituted benzyl moiety.Application of 403-33-8

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

Yang, Ran; Dou, You; Zhang, Yinli; Qu, Lingbo; Sun, Yuanqiang; Li, Zhaohui published an article in 2021. The article was titled 《A facile and highly efficient fluorescent turn-on switch strategy based on diketone isomerization and its application in peroxynitrite fluorescent imaging》, and you may find the article in Sensors and Actuators, B: Chemical.COA of Formula: C7H12O3 The information in the text is summarized as follows:

A fluorescence turn-on switch induced by functional group conversion offers great potential in fluorescent probes and bioimaging due to its high specificity and efficiency. Exploring novel fluorescence turn-on switches and their singling mechanism are of great significance. In this manuscript, a novel fluorescent turn-on switch strategy induced by diketone isomerization was reported. It was found that when the diketone group of the synthesized coumarin derivative was converted into its monoketone or carboxylic acid derivatives, it could be illuminated. With this fluorescence turn-on strategy, the obtained probe could be used as a trigger for peroxynitrite (ONOO-). The imaging and monitoring of ONOO- in RAW 264.7 cells endogenously induced by acetaminophen and heat shock were successfully achieved. This diketone isomerization strategy will promote the design and construction of a series of novel redox probes. In the experiment, the researchers used Ethyl 3-oxopentanoate(cas: 4949-44-4COA of Formula: C7H12O3)

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.COA of Formula: C7H12O3

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

Pan, Langheng; Zhan, Tao; Oh, Jiyeon; Zhang, Yue; Tang, Haoran; Yang, Mingqun; Li, Mengmeng; Yang, Changduk; Liu, Xi; Cai, Ping; Duan, Chunhui; Huang, Fei; Cao, Yong published their research in Chemistry – A European Journal in 2021. The article was titled 《N-Type Quinoidal Polymers Based on Dipyrrolopyrazinedione for Application in All-Polymer Solar Cells》.Recommanded Product: 4755-77-5 The article contains the following contents:

Conjugated mols. and polymers with intrinsic quinoidal structure are promising n-type organic semiconductors, which have been reported for application in field-effect transistors and thermoelec. devices. In principle, the mol. and electronic characteristics of quinoidal polymers can also enable their application in organic solar cells. Herein, two quinoidal polymers, named PzDP-T and PzDP-ffT, based on dipyrrolopyrazinedione were synthesized and used as electron acceptors in all-polymer solar cells (all-PSCs). Both PzDP-T and PzDP-ffT showed suitable energy levels and wide light absorption range that extended to the near-IR region. When combined with the polymer donor PBDB-T, the resulting all-PSCs based on PzDP-T and PzDP-ffT exhibited a power conversion efficiency (PCE) of 1.33 and 2.37 %, resp. This is the first report on the application of intrinsic quinoidal conjugated polymers in all-PSCs. The photovoltaic performance of the all-PSCs was revealed to be mainly limited by the relatively poor and imbalanced charge transport, considerable charge recombination. Detailed investigations on the structure-performance relationship suggested that synergistic optimization of light absorption, energy levels, and charge transport properties is needed to achieve more successful application of intrinsic quinoidal conjugated polymers in all-PSCs. In the experiment, the researchers used Ethyl oxalyl monochloride(cas: 4755-77-5Recommanded Product: 4755-77-5)

Ethyl oxalyl monochloride(cas: 4755-77-5) belongs to acyl chlorides. In the laboratory, acyl chlorides are generally prepared by treating carboxylic acids with thionyl chloride (SOCl2). The reaction is catalyzed by dimethylformamide and other additives.Recommanded Product: 4755-77-5

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

Song, Yi-Kang; Xu, Si-Yu; Zhang, Shu-Sheng; Fu, Jian-Guo; Lin, Guo-Qiang; Feng, Chen-Guo published their research in Advanced Synthesis & Catalysis in 2021. The article was titled 《Palladium-Catalyzed Tandem γ-Arylation/Aromatization of Cyclohex-2-En-1-One Derivatives: A Route to 3,4-Dihydroanthracen-1(2H)-Ones》.Formula: C7H12O3 The article contains the following contents:

An intramol. palladium-catalyzed tandem γ-arylation/aromatization reaction of cyclohex-2-en-1-one derivatives was developed. This work provides a simple and efficient approach for the construction of substituted 3,4-dihydroanthracen-1(2H)-ones in good yields with a broad substrate scope. The experimental part of the paper was very detailed, including the reaction process of Ethyl 3-oxopentanoate(cas: 4949-44-4Formula: C7H12O3)

Ethyl 3-oxopentanoate(cas: 4949-44-4) belongs to ketone compounds. Ketones are highly reactive, although less so than aldehydes, to which they are closely related. Much of their chemical activity results from the nature of the carbonyl group. Ketones readily undergo a wide variety of chemical reactions.Formula: C7H12O3

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