Month: October 2022

Zuo, Ziqing; Kim, Raphael S.; Watson, Donald A. published an article in 2021. The article was titled 《Synthesis of Axially Chiral 2,2′-Bisphosphobiarenes via a Nickel-Catalyzed Asymmetric Ullmann Coupling: General Access to Privileged Chiral Ligands without Optical Resolution》, and you may find the article in Journal of the American Chemical Society.SDS of cas: 2635-13-4 The information in the text is summarized as follows:

The authors report an asym. homocoupling of ortho-(iodo)arylphosphine oxides and ortho-(iodo)arylphosphonates resulting in highly enantioenriched axially chiral bisphosphine oxides and bisphosphonates. These products are readily converted to enantioenriched biaryl bisphosphines without need for chiral auxiliaries or optical resolution This provides a practical route for the development of previously unstudied atroposelective biaryl bisphosphine ligands. The conditions also proved effective for asym. dimerization of other, nonphosphorus-containing aryl halides. In addition to this study using 5-Bromobenzo[d][1,3]dioxole, there are many other studies that have used 5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4SDS of cas: 2635-13-4) was used in this study.

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.SDS of cas: 2635-13-4

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Pandiri, Madhuri; Nukala, Satheesh Kumar; Dasari, Gouthami; Badithapuram, Vinitha; Bandari, Srinivas published an article in 2021. The article was titled 《Design and Synthesis of Some New N-Phenyl-[1,2,4]triazolo[4,3-a]quinoxaline-1-sulfonamide Derivatives and Their Anti-Cancer Activity》, and you may find the article in Russian Journal of General Chemistry.Recommanded Product: 626-40-4 The information in the text is summarized as follows:

Synthesis of some new derivatives of N-phenyl-[1,2,4]triazolo[4,3-a]quinoxaline-1-sulfonamide and their in vitro anticancer activity on four human cancer lines like MCF-7 (human breast cancer cell line), HeLa (human cervical cancer cell line), A549 (human lung cancer cell line), and IMR32 (human neuroblastoma cell line) have been studied. Among the products, N-(3,5-dichloronitrophenyl)-[1,2,4]triazolo[4,3-a]quinoxaline-1-sulfonamide, is characterized by the activity higher than the standard Etoposide against the tested cancer cell lines. In the experiment, the researchers used many compounds, for example, 3,5-Dibromoaniline(cas: 626-40-4Recommanded Product: 626-40-4)

3,5-Dibromoaniline(cas: 626-40-4) belongs to anime. Reaction with nitrous acid (HNO2), which functions as an acylating agent that is a source of the nitrosyl group (―NO), converts aliphatic primary amines to nitrogen and mixtures of alkenes and alcohols corresponding to the alkyl group in a complex process. This reaction has been used for analytical determination of primary amino groups in a procedure known as the Van Slyke method.Recommanded Product: 626-40-4

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Li, Yanrong; Rajasree, Sreehari Surendran; Lee, Ga Young; Yu, Jierui; Tang, Jian-Hong; Ni, Ruidong; Li, Guigen; Houk, Kendall. N.; Deria, Pravas; Stang, Peter J. published an article in 2021. The article was titled 《Anthracene-triphenylamine-based platinum(II) metallacages as synthetic light-harvesting assembly》, and you may find the article in Journal of the American Chemical Society.Application In Synthesis of Tris(4-bromophenyl)amine The information in the text is summarized as follows:

Two trigonal prismatic metallacages 1 and 2 bearing triphenylamine and anthracene moieties are designed and synthesized to fabricate artificial light-harvesting systems (LHSs). These two cages are prepared via the coordination-driven self-assembly of two anthracene-triphenylamine-based tripyridyl ligand 3, three dicarboxylates, and six 90° Pt(II) acceptors. The design of the anthracene-triphenylamine chromophore makes possible the tunable excited-state property (like the emissive transition energy and lifetime) as a function of the solvent polarity, temperature, and concentration The synergistic photophys. footprint of these metallacages, defined by their high absorptivity and emission quantum yield (QY) relative to the free ligand 3, signifies them as a superior light sensitizer component in an LHS. In the presence of the fluorescent dye Nile Red (NR) as an energy acceptor, the metallacages display efficient (>93%) excited energy transfer to NR through an apparent static quenching mechanism in viscous DMSO solvent. After reading the article, we found that the author used Tris(4-bromophenyl)amine(cas: 4316-58-9Application In Synthesis of Tris(4-bromophenyl)amine)

In general, Tris(4-bromophenyl)amine(cas: 4316-58-9) is often used in the synthesis of porous luminescent covalent–organic polymers (COPs)Application In Synthesis of Tris(4-bromophenyl)amine

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Liu, Naifang; Chen, Zhihui; Fan, Wenxuan; Su, Jie; Lin, Tingting; Xiao, Si; Meng, Jianqiao; He, Jun; Vittal, Jagadese J.; Jiang, Jianzhuang published an article in 2022. The article was titled 《Highly Efficient Multiphoton Absorption of Zinc-AIEgen Metal-Organic Frameworks》, and you may find the article in Angewandte Chemie, International Edition.Product Details of 523-27-3 The information in the text is summarized as follows:

A series of luminescent frameworks was synthesized from the selective combination of aggregation induced emission (AIE)-linker tetra-(4-carboxylphenyl)ethylene (H4TCPE) and Zn2+. Complex 1 was formed by the close packing of Zn-TCPE hinge, and isostructural complexes 2-5 were constructed by the linkage of Zn-TCPE layer and pillar ligands. These complexes exhibit highly efficient multiphoton excited photoluminescence (MEPL) and concomitant third-harmonic generation (THG). The multiphoton absorption (MPA) parameters of 1 are superior to other multiphoton emission materials including the perovskite nanocrystals. The incorporation of pillar linkers slows down the charge transfer between layers of Zn-TCPE, and the aromatic core of pillar linkers has a great influence on the MPA performance of the corresponding frameworks. The experimental part of the paper was very detailed, including the reaction process of 9,10-Dibromoanthracene(cas: 523-27-3Product Details of 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.Product Details of 523-27-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Shcherbakov, Dmitriy; Baev, Dmitriy; Kalinin, Mikhail; Dalinger, Alexander; Chirkova, Varvara; Belenkaya, Svetlana; Khvostov, Aleksei; Krut’ko, Dmitry; Medved’ko, Aleksei; Volosnikova, Ekaterina; Sharlaeva, Elena; Shanshin, Daniil; Tolstikova, Tatyana; Yarovaya, Olga; Maksyutov, Rinat; Salakhutdinov, Nariman; Vatsadze, Sergey published an article in ACS Medicinal Chemistry Letters. The title of the article was 《Design and Evaluation of Bispidine-Based SARS-CoV-2 Main Protease Inhibitors》.Safety of Benzyl 2-bromoacetate The author mentioned the following in the article:

For the first time, derivatives of 3,7-diazabicyclo[3.3.1]nonane (bispidine) were proposed as potential inhibitors of the SARS-CoV-2 main viral protease (3-chymotrypsin-like, 3CLpro). Based on the created pharmacophore model of the active site of the protease, a group of compounds were modeled and tested for activity against 3CLpro. The 3CLpro activity was measured using the fluorogenic substrate Dabcyl-VNSTLQSGLRK(FAM)MA; the efficiency of the proposed approach was confirmed by comparison with literature data for ebselen and disulfiram. The results of the experiments performed with bispidine compounds showed that 14 compounds exhibited activity in the concentration range 1-10μM, and 3 samples exhibited submicromolar activity. The structure-activity relationship studies showed that the mols. containing a carbonyl group in the ninth position of the bicycle exhibited the maximum activity. Based on the exptl. and theor. results obtained, further directions for the development of this topic were proposed.Benzyl 2-bromoacetate(cas: 5437-45-6Safety of Benzyl 2-bromoacetate) was used in this study.

Benzyl 2-bromoacetate(cas: 5437-45-6) belongs to benzyl acetate. Benzyl acetate is a synthetic chemical produced for industry from benzyl alcohol and acetic acid, but is also naturally present in the essential oils of many plants, including jasmine and ylang ylang.Safety of Benzyl 2-bromoacetate

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Yamatsugu, Kenzo; Katoh, Hiroto; Yamashita, Takefumi; Takahashi, Kazuki; Aki, Sho; Tatsumi, Toshifumi; Kaneko, Yudai; Kawamura, Takeshi; Miura, Mai; Ishii, Masazumi; Ohkubo, Kei; Osawa, Tsuyoshi; Kodama, Tatsuhiko; Ishikawa, Shumpei; Kanai, Motomu; Sugiyama, Akira published an article in Protein Expression and Purification. The title of the article was 《Antibody mimetic drug conjugate manufactured by high-yield Escherichia coli expression and non-covalent binding system》.Safety of Benzyl 2-bromoacetate The author mentioned the following in the article:

Antibody-drug conjugates (ADCs) are a major therapeutic tool for the treatment of advanced cancer. Malignant cells in advanced cancer often display multiple genetic mutations and become resistant to monotherapy. Therefore, a therapeutic regimen that simultaneously targets multiple mols. with multiple payloads is desirable. However, the development of ADCs is hampered by issues in biopharmaceutical manufacturing and the complexity of the conjugation process of low-mol.-weight payloads to biologicals. Here, we report antibody mimetic-drug conjugates (AMDCs) developed by exploiting the non-covalent binding property of payloads based on high-affinity binding of mutated streptavidin and modified iminobiotin. Miniprotein antibodies were fused to a low immunogenic streptavidin variant, which was then expressed in Escherichia coli inclusion bodies, solubilized, and refolded into functional tetramers. The AMDC developed against human epidermal growth factor receptor 2 (HER2) effectively killed cultured cancer cells using bis-iminobiotin conjugated to photo-activating silicon phthalocyanine. The HER2-targeting AMDC was also effective in vivo against a mouse KPL-4 xenograft model. This AMDC platform provides rapid, stable, and high-yield therapeutics against multiple targets. In the part of experimental materials, we found many familiar compounds, such as Benzyl 2-bromoacetate(cas: 5437-45-6Safety of Benzyl 2-bromoacetate)

Benzyl 2-bromoacetate(cas: 5437-45-6) belongs to benzyl acetate. Benzyl acetate is an aromatic chemical, usually appearing as a clear liquid with a moderate sweet-jasmine fragrance. This compound appears as a component of some of our fragrance blends.Safety of Benzyl 2-bromoacetate

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Long, Keith; Vaughn, Zoe; McDaniels, Michael David; Joyasawal, Sipak; Przepiorski, Aneta; Parasky, Emily; Sander, Veronika; Close, David; Johnston, Paul A.; Davidson, Alan J.; de Caestecker, Mark; Hukriede, Neil A.; Huryn, Donna M. published an article in ACS Pharmacology & Translational Science. The title of the article was 《Validation of HDAC8 Inhibitors as Drug Discovery Starting Points to Treat Acute Kidney Injury》.Name: Methyl 3-bromopropanoate The author mentioned the following in the article:

Acute kidney injury (AKI), a sudden loss of kidney function, is a common and serious condition for which there are no approved specific therapies. While there are multiple approaches to treat the underlying causes of AKI, no targets have been clin. validated. Here, we assessed a series of potent, selective competitive inhibitors of histone deacetylase 8 (HDAC8), a promising therapeutic target in an AKI setting. Using biochem. assays, zebrafish AKI phenotypic assays, and human kidney organoid assays, we show that selective HDAC8 inhibitors can lead to efficacy in increasingly stringent models. One of these, PCI-34051, was efficacious in a rodent model of AKI, further supporting the potential for HDAC8 inhibitors and, in particular, this scaffold as a therapeutic approach to AKI. In the experiment, the researchers used many compounds, for example, Methyl 3-bromopropanoate(cas: 3395-91-3Name: Methyl 3-bromopropanoate)

Methyl 3-bromopropanoate(cas: 3395-91-3) 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.Name: Methyl 3-bromopropanoate

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Deng, Xuemei; Luo, Tian; Li, Zhao; Wen, Huaixiu; Zhang, Honghua; Yang, Xiaoyan; Lei, Fang; Liu, Dan; Shi, Tao; Zhao, Quanyi; Wang, Zhen published an article in European Journal of Medicinal Chemistry. The title of the article was 《Design, synthesis and anti-hepatocellular carcinoma activity of 3-arylisoquinoline alkaloids》.Related Products of 2635-13-4 The author mentioned the following in the article:

This article describes the syntheses and biol. activity of five 3-arylisoquinoline natural products corydamine (1), N-formyl Corydamine (2), hypecumine (3), Decumbenine B (XW) and 2-(1,3-dioxolo [4,5-h]isoquinolin-7-yl)-4,5-dimethoxy-N-methyl-Benzeneethanamine (A), and twelve analogs. Among them, 1, 2, and A were synthesized for the first time. In vitro screening for anti-proliferative activity showed that derivative 1a could significantly inhibit the proliferation of HCC cells (IC50 = 9.82 μM on Huh7 cells and 6.83 μM on LM9 cells), and arrest cell cycle at G2/M phase. The mechanistic studies further suggested compound 1a was a dual inhibitor of Topo I and Topo II, and Topo II inhibitory activity was superior to etoposide. In addition, 1a could significantly inhibit the invasion and migration of cancer cells by inhibiting the expression of MMP-9, and induce apoptosis through inhibiting the activation of the PI3K/Akt/mTOR signaling pathway. Moreover, in vivo studies demonstrated 1a could obviously reduce the growth of xenograft tumor and possessed good pharmacokinetic parameters, which indicated the potential value of 1a in treating liver cancer.5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4Related Products of 2635-13-4) was used in this study.

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.Related Products of 2635-13-4

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Yang, Ruige; Fu, Yingying; Chu, Junyan; Hu, Feixia; Zheng, Shudan; Wang, Lei; Liu, Mengqi; Liu, Jifeng published an article in Bioorganic & Medicinal Chemistry Letters. The title of the article was 《Semisynthesis and neurotrophic activity studies of novel neomajucin/majucin derivatives as neurotrophin small molecule mimetics》.Electric Literature of C4H7BrO2 The author mentioned the following in the article:

Majucin-type Illicium sesquiterpenes with potent neurotrophic activity are considered to be promising candidates for the treatment of various neurodegenerative disease. Owing to the low-abundance metabolites in Illicium genus, there are few studies on their structural modifications, structure-activity relationships, and pharmacophoric motif. Herein, structural modifications were conducted on the hydroxyl groups at C-3 and C-6 positions of two majucin-type compounds neomajucin (1, I) and majucin (2, II), and 39 neomajucin/majucin based esters were synthesized and evaluated for their neurite outgrowth-promoting activities. Many of the target derivatives displayed more potent neurite outgrowth-promoting activity than their precursors. Some interesting structure-activity relationships (SARs) were also observed Moreover, compound 1a (III) showed good neuroprotective effect on MPP+-induced PC12 cell damage. Finally, compounds 1a and 3a (IV) exhibited relatively no cytotoxicity to normal human H9C2 cardiac cells. This work will shed light on the development of neomajucin/majucin derivatives as potential neurotrophic agents. The experimental process involved the reaction of 4-Bromobutanoic acid(cas: 2623-87-2Electric Literature of C4H7BrO2)

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.).Electric Literature of C4H7BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Wang, Zejun; Zhou, Jiawen; Zhang, Yiheng; Zhu, Weiya; Li, Yuan published an article in Angewandte Chemie, International Edition. The title of the article was 《Accessing Highly Efficient Photothermal Conversion with Stable Open-Shell Aromatic Nitric Acid Radicals》.Related Products of 4316-58-9 The author mentioned the following in the article:

It is very challenging to prepare stable radicals as they are usually thermodynamically or kinetically unstable in air. Herein, a series of star-shaped aromatic nitric acid radicals were prepared via facile demethylation and consequent oxidation As phenol radicals without steric hindrance group protection, they exhibit high electrochem. and thermal stability due to their rich resonance structures including closed-shell nitro-like and open-shell nitroxide structure with unpaired electrons delocalized in conjugated backbones. Among them, TPA-TPA-O6 powder exhibited extremely wide absorption from 300 to 2000 nm covering the whole solar spectral irradiance, high photothermal conversion efficiency, and negligible photobleaching effect in seawater desalination. Under the irradiation of one sunlight, the water evaporation efficiency of TPA-TPA-O6 is recorded to be as high as 89.41 % and the water evaporation rate is 1.293 kg m-2 h-1, which represents the top performance in pure organic small mol. photothermal materials. In the part of experimental materials, we found many familiar compounds, such as Tris(4-bromophenyl)amine(cas: 4316-58-9Related Products of 4316-58-9)

In other references, Tris(4-bromophenyl)amine(cas: 4316-58-9) is often used in the synthesis of porous luminescent covalent–organic polymers (COPs)Related Products of 4316-58-9

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary