Category: bromides-buliding-blocks

In 2022,Dong, Yuyang; Shin, Kwangmin; Mai, Binh Khanh; Liu, Peng; Buchwald, Stephen L. published an article in Journal of the American Chemical Society. The title of the article was 《Copper Hydride-Catalyzed Enantioselective Olefin Hydromethylation》.Recommanded Product: 1530-32-1 The author mentioned the following in the article:

The enantioselective installation of a Me group onto a small mol. can result in the significant modification of its biol. properties. While hydroalkylation of olefins represents an attractive approach to introduce alkyl substituents, asym. hydromethylation protocols are often hampered by the incompatibility of highly reactive methylating reagents and a lack of general applicability. Herein, authors report an asym. olefin hydromethylation protocol enabled by CuH catalysis. This approach leverages Me tosylate as a Me source compatible with the reducing base-containing reaction environment, while a catalytic amount of iodide ion transforms the Me tosylate in situ into the active reactant, Me iodide, to promote the hydromethylation. This method tolerates a wide range of functional groups, heterocycles, and pharmaceutically relevant frameworks. D. functional theory studies suggest that after the stereoselective hydrocupration, the methylation step is stereoretentive, taking place through an SN2-type oxidative addition mechanism with Me iodide followed by a reductive elimination. The experimental process involved the reaction of Ethyltriphenylphosphonium bromide(cas: 1530-32-1Recommanded Product: 1530-32-1)

Ethyltriphenylphosphonium bromide(cas: 1530-32-1) is a phase transfer catalyst, used to accelerate the cure of phenolic-based epoxy resins, certain fluoroelastomer resins and thermosetting powder coatings. CatOnium ETPB is also used as catalysts in the synthesis of certain organic compounds.Recommanded Product: 1530-32-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Yan, Xiang-Yu; Leng, Jia-Fu; Chen, Ting-Ting; Zhao, Yong-Jun; Kong, Ling-Yi; Yin, Yong published an article in European Journal of Medicinal Chemistry. The title of the article was 《Design, synthesis, and biological evaluation of novel diphenylamine derivatives as tubulin polymerization inhibitors targeting the colchicine binding site》.HPLC of Formula: 2635-13-4 The author mentioned the following in the article:

A novel series of diphenylamine derivatives were designed and synthesized I and their biol. activities were evaluated. The anti-proliferative activities of the derivatives were tested against five human cancer cell lines (MCF-7, MDA-MB-231, A549, HeLa and HT29). Among them, I exhibited the promising anti-proliferative activity against HT29 cell lines with the IC50 value of 23 nM. Further biol. studies depicted that I inhibited cancer cell migration, colony formation and angiogenesis. Besides, dynamics studies and mol. docking studies revealed that I inhibited tubulin polymerization which may be a result of the compound binding to the colchicine site of tubulin. Furthermore,I arrested HT29 cell cycle at G2/M phase, and induced HT29 cell apoptosis by upregulating cyclin B1, Bcl-2, Bax, Cleaved-caspase9, Cleaved-caspase3, PARP, Cleaved-PARP proteins, and downregulating p-cdc25c (S216), p-cdc2 (T15) proteins. Mitochondrial membrane potential (MMP) and reactive oxygen species (ROS) were also determined to confirm the cell apoptosis process. Finally, I greatly inhibited the tumor growth in HT29 xenograft mice by 75.5% at 10 mg/kg. Meanwhile, I owned the good pharmacokinetic properties. All the results promised that I is of potential to act as an antitumor candidate and worthy of further investigation. In the part of experimental materials, we found many familiar compounds, such as 5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4HPLC of Formula: 2635-13-4)

Furthermore, the coupling of 5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4) with β-methallyl alcohol was catalyzed by Pd(OAc)2 in combination with P(t-Bu)3.HPLC of Formula: 2635-13-4

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Delledonne, Andrea; Orlandini, Martina; Mazzeo, Paolo P.; Sissa, Cristina; Bacchi, Alessia; Terenziani, Francesca; Pelagatti, Paolo published an article in Physical Chemistry Chemical Physics. The title of the article was 《Bis-isonicotinoyl linkers containing polyaromatic scaffolds: synthesis, structure and spectroscopic properties》.HPLC of Formula: 523-27-3 The author mentioned the following in the article:

New synthesis of extended linkers containing different polyaromatic chromophores functionalized with isonicotinoyl moieties I (R = 3,7-naphthalene-diyl, biphenyl-4,4′-diyl, fluorene-2,7-diyl, etc.) have been synthesized by Pd-catalyzed cross-coupling reactions involving isonicotinamide and the appropriate aromatic dibromides such as 2,6-dibromonaphthalene, 2,7-dibromofluorene, 9,10-dibromoanthracene, etc. The optimized protocol led to the isolation of the target mols. in good yield and with high purity. Electronic absorption and emission spectra were collected both in solution (DMF) and in the solid state. TDDFT calculations were carried out to investigate the effect of the isonicotinoyl moieties on the spectral features of the central chromophores. After reading the article, we found that the author used 9,10-Dibromoanthracene(cas: 523-27-3HPLC of Formula: 523-27-3)

9,10-Dibromoanthracene(cas: 523-27-3) can be sublimated and oxidized to generate anthraquinone. Soluble in hot benzene and hot toluene, slightly soluble in alcohol, ether and cold benzene, insoluble in water.HPLC of Formula: 523-27-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Oliva, Paola; Scortichini, Mirko; Dobelmann, Clemens; Jain, Shanu; Gopinatth, Varun; Toti, Kiran S.; Phung, Ngan B.; Junker, Anna; Jacobson, Kenneth A. published an article in 2021. The article was titled 《Structure-activity relationships of pyrimidine nucleotides containing a 5′-α,β-methylene diphosphonate at the P2Y6 receptor》, and you may find the article in Bioorganic & Medicinal Chemistry Letters.Related Products of 1129-28-8 The information in the text is summarized as follows:

The Gq-coupled P2Y6 receptor (P2Y6R) is a component of the purinergic signaling system and functions in inflammatory, cardiovascular and metabolic processes. UDP, the native P2Y6R agonist and P2Y14R partial agonist, is subject to hydrolysis by ectonucleotidases. Therefore, we have synthesized UDP/CDP analogs, e.g. I, containing a stabilizing α,β-methylene bridge as P2Y6R agonists and identified compatible affinity-enhancing pyrimidine modifications. A distal binding region on the receptor was explored with 4-benzyloxyimino CDP analogs and their potency determined in a calcium mobilization assay. A 4-trifluoromethyl-benzyloxyimino substituent provided the highest human P2Y6R potency (MRS4554, 0.57μM), and a 5-fluoro substitution of the cytosine ring similarly enhanced potency, with >175- and 39-fold selectivity over human P2Y14R, resp. However, 3-alkyl, β-D-arabinofuranose, and 6-aza substitution prevented P2Y6R activation. Thus, we have identified new α,β-methylene bridged N4-extended CDP analogs as P2Y6R agonists that are highly selective over the P2Y14R. In the experiment, the researchers used Methyl 3-(bromomethyl)benzoate(cas: 1129-28-8Related Products of 1129-28-8)

Methyl 3-(bromomethyl)benzoate(cas: 1129-28-8) belongs to organobromine compounds.Organobromine chemicals are produced naturally by an array of biological and other chemical processes in our environment. Some of these compounds are identical to man-made organobromine compounds, such as methyl bromide, bromoform, and bromophenols, but many others are entirely new moleclar entities, often possessing extraordinary and important biological properties. Related Products of 1129-28-8

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Zhang, Cheng; Yue, Hu; Sun, Ping; Hua, Lei; Liang, Shuli; Ou, Yitao; Wu, Dan; Wu, Xinyi; Chen, Hao; Hao, Ying; Hu, Wenhui; Yang, Zhongjin published an article in 2021. The article was titled 《Discovery of chalcone analogues as novel NLRP3 inflammasome inhibitors with potent anti-inflammation activities》, and you may find the article in European Journal of Medicinal Chemistry.Quality Control of Ethyl 5-bromovalerate The information in the text is summarized as follows:

NLRP3 inflammasome activation plays a critical role in inflammation and its related disorders. Herein we report a hit-to-lead effort resulting in the discovery of a novel and potent class of NLRP3 inflammasome inhibitors. Among these, the most potent lead 40 exhibited improved inhibitory potency and almost no toxicity. Further mechanistic study indicated that compound 40 inhibited the NLRP3 inflammasome activation via suppressing ROS production More importantly, treatment with 40 showed remarkable therapeutic effects on LPS-induced sepsis and DSS-induced colitis. This study encourages further development of more potent inhibitors based on this chem. scaffold and provides a chem. tool to identify its cellular binding target. In the experiment, the researchers used many compounds, for example, Ethyl 5-bromovalerate(cas: 14660-52-7Quality Control of Ethyl 5-bromovalerate)

Ethyl 5-bromovalerate(cas: 14660-52-7) belongs to bromides. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact.Quality Control of Ethyl 5-bromovalerate

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Hassan, Mohamed; Krieg, Sara-Cathrin; Ndefo Nde, Cedric; Roos, Jessica; Maier, Thorsten J.; El Rady, Eman A.; Raslan, Mohamed A.; Sadek, Kamal U.; Manolikakes, Georg published an article in 2021. The article was titled 《Streamlined One-Pot Synthesis of Nitro Fatty Acids》, and you may find the article in European Journal of Organic Chemistry.Computed Properties of C4H7BrO2 The information in the text is summarized as follows:

A novel method for the synthesis of nitro fatty acids (NFAs), an intriguing class of endogenously occurring lipid mediators, is reported. This one-pot procedure enables the controlled and stereoselective construction of nitro fatty acids from a simple set of common building blocks in a highly facile manner. Thereby, this methodol. offers a streamlined, highly modular access to naturally occurring nitro fatty acids as well as non-natural NFA derivatives In addition to this study using 4-Bromobutanoic acid, there are many other studies that have used 4-Bromobutanoic acid(cas: 2623-87-2Computed Properties of C4H7BrO2) was used in this study.

4-Bromobutanoic acid(cas: 2623-87-2) belongs to carboxylic acids. The chief chemical characteristic of the carboxylic acids is their acidity. They are generally more acidic than other organic compounds containing hydroxyl groups but are generally weaker than the familiar mineral acids (e.g., hydrochloric acid, HCl, sulfuric acid, H2SO4, etc.).Computed Properties of C4H7BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Nakao, Shuichi; Saikai, Miki; Nishimoto, Yoshihiro; Yasuda, Makoto published an article in 2021. The article was titled 《InBr3-Catalyzed Coupling Reaction between Electron-Deficient Alkenyl Ethers with Silyl Enolates for Stereoselective Synthesis of 1,5-Dioxo-alk-2-enes》, and you may find the article in European Journal of Organic Chemistry.Application In Synthesis of Indium(III) bromide The information in the text is summarized as follows:

A coupling reaction of electron-deficient alkenyl ethers with silyl enolates catalyzed by InBr3 was achieved. Various silyl enolates and 2-carbonylalkenyl ethers were applicable, giving the corresponding 1,5-dioxo-alk-2-enes with perfect stereoselectivity of the alkene moieties. The present coupling reaction proceeds via the 1,4-addition of silyl enolates to alkenyl ethers followed by elimination of silyl alkoxides, in which moderate-Lewis acidic InBr3 performs both the activation of alkenyl ethers and the elimination of alkoxy groups regardless of the presence of various coordinative functional groups. In addition to this study using Indium(III) bromide, there are many other studies that have used Indium(III) bromide(cas: 13465-09-3Application In Synthesis of Indium(III) bromide) was used in this study.

Indium(III) bromide(cas: 13465-09-3) is used as a catalyst to produce dithioacetals when unactivated alkynes react with thiols and fields such as optics and microelectronics that utilize semiconductor technology have wide uses for indium in high-performing solar cells.Application In Synthesis of Indium(III) bromide

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Meng, Lingpu; Yang, Jingjie; Duan, Mei; Wang, You; Zhu, Shaolin published an article in 2021. The article was titled 《Facile Synthesis of Chiral Arylamines, Alkylamines and Amides by Enantioselective NiH-Catalyzed Hydroamination》, and you may find the article in Angewandte Chemie, International Edition.Formula: C20H20BrP The information in the text is summarized as follows:

Regio- and enantioselective hydroarylamination, hydroalkylamination and hydroamidation of styrenes was developed by NiH catalysis with a simple bioxazoline ligand under mild conditions. A wide range of enantioenriched benzylic arylamines, alkylamines and amides was easily accessed by nitroarenes, hydroxylamines and dioxazolones, resp. as amination reagents. The chiral induction in these reactions was proposed to proceed through an enantiodifferentiating syn-hydronickellation step. In the experimental materials used by the author, we found Ethyltriphenylphosphonium bromide(cas: 1530-32-1Formula: C20H20BrP)

Ethyltriphenylphosphonium bromide(cas: 1530-32-1) is a phase transfer catalyst, used to accelerate the cure of phenolic-based epoxy resins, certain fluoroelastomer resins and thermosetting powder coatings. It is also used as catalysts in the synthesis of certain organic compounds and as a pharmaceutical intermediate.Formula: C20H20BrP

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

The author of 《Investigation of the molecular characteristics of bisindole inhibitors as HIV-1 glycoprotein-41 fusion inhibitors》 were Zhou, Guangyan; Chu, Shidong; Nemati, Ariana; Huang, Chunsheng; Snyder, Beth A.; Ptak, Roger G.; Gochin, Miriam. And the article was published in European Journal of Medicinal Chemistry in 2019. Recommanded Product: Methyl 3-(bromomethyl)benzoate The author mentioned the following in the article:

In previous work, we described 6-6′-bisindole compounds targeting a hydrophobic pocket on the N-heptad repeat region of viral glycoprotein-41 as effective inhibitors of HIV-1 fusion. Two promising compounds with sub-micromolar IC50’s contained a benzoic acid group and a benzoic acid ester attached at the two indole nitrogens. Here we have conducted a thorough structure-activity relationship (SAR) study evaluating the contribution of each of the ring systems and various substituents to compound potency. Hydrophobicity, polarity and charge were varied to produce 35 new compounds that were evaluated in binding, cell-cell fusion and viral infectivity assays. We found that (a) activity based solely on increasing hydrophobic content plateaued at ∼ 200 nM; (b) the bisindole scaffold surpassed other heterocyclic ring systems in efficacy; (c) a polar interaction possibly involving Gln575 in the pocket could supplant less specific hydrophobic interactions; and (d) the benzoic acid ester moiety did not appear to form specific contacts with the pocket. The importance of this hydrophobic group to compound potency suggests a mechanism whereby it might interact with a tertiary component during fusion, such as membrane. A promising small mol. 10b with sub-μM activity was discovered with mol. weight <500 da and reduced logP compared to earlier compounds The work provides insight into requirements for small mol. inhibition of HIV-1 fusion. In the experiment, the researchers used many compounds, for example, Methyl 3-(bromomethyl)benzoate(cas: 1129-28-8Recommanded Product: Methyl 3-(bromomethyl)benzoate)

Methyl 3-(bromomethyl)benzoate(cas: 1129-28-8) belongs to organobromine compounds.The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. Recommanded Product: Methyl 3-(bromomethyl)benzoate The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

The author of 《Glycine-betaine-derived ionic liquids: Synthesis, characterization and ecotoxicological evaluation》 were Parajo, Juan J.; Macario, Ines P. E.; De Gaetano, Yannick; Dupont, Laurent; Salgado, Josefa; Pereira, Joana L.; Goncalves, Fernando J. M.; Mohamadou, Aminou; Ventura, Sonia P. M.. And the article was published in Ecotoxicology and Environmental Safety in 2019. SDS of cas: 2969-81-5 The author mentioned the following in the article:

Ionic Liquids (ILs) are generically regarded as environmentally “”harmless”” and thus, assumed as “”non-toxic””. However, due to the endless design possibilities, their ecotoxicol. profile is still poorly known. An accurate knowledge on the toxicity of a substance is required, under the scope of environmental regulation worldwide, before their application and commercialization. Knowledge on the relationship between the chem. structure and toxic effects is essential for the future design of more biocompatible solvents. Focusing on the use of ILs as base lubricants, lubricant additives, or even as potential working fluids for absorption heat pumps, the knowledge on its environmental impact is of great importance, due to the possibility of spills. In this specific context, four analogs of glycine-betaine-based ILs (AGB-ILs) and four glycine-betaine based ILs (GB-ILs) were synthesized and characterized. Their ecotoxicity was assessed using representatives of two trophic levels in aquatic ecosystems, the bacteria Allivibrio fischeri (commonly used as a screening test organism) and the microalgae Raphidocelis subcapitata (as an alternative test organism that has been proven very sensitive to several IL families). The microalgae were more sensitive than the bacteria, hence, following a precautionary principle, we recommend considering the toxicity towards microalgae as an indicator in future studies regarding the focused ILs. Although four of the studied ILs were derived from a natural amino acid, all were considered hazardous for the aquatic environment, disproving the primary theory that all ILs derived from natural compounds are benign. Furthermore, the modification in the structure of anion and the cation can lead to the increase of toxicity. In addition to this study using Ethyl 4-bromobutyrate, there are many other studies that have used Ethyl 4-bromobutyrate(cas: 2969-81-5SDS of cas: 2969-81-5) was used in this study.

Ethyl 4-bromobutyrate(cas: 2969-81-5) belongs to bromides. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact.SDS of cas: 2969-81-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary